Update documentation

Fix Clang-tidy modernize-use-override warnings.

.travis.yml

@@ -1,10 +1,10 @@
-# Copyright 2016-2019 Peter Dimov
+# Copyright 2016-2020 Peter Dimov
 # Distributed under the Boost Software License, Version 1.0.
 # (See accompanying file LICENSE_1_0.txt or copy at http://boost.org/LICENSE_1_0.txt)
 
 language: cpp
 
-sudo: false
+dist: xenial
 
 branches:
   only:
@@ -23,8 +23,23 @@ matrix:
 
   include:
     - os: linux
+      arch: arm64
       compiler: g++
-      env: TOOLSET=gcc COMPILER=g++ CXXSTD=03,11
+      env: TOOLSET=gcc COMPILER=g++ CXXSTD=03,11,14
+
+    - os: linux
+      arch: ppc64le
+      compiler: g++
+      env: TOOLSET=gcc COMPILER=g++ CXXSTD=03,11,14
+
+    - os: linux
+      arch: s390x
+      compiler: g++
+      env: TOOLSET=gcc COMPILER=g++ CXXSTD=03,11,14
+
+    - os: freebsd
+      compiler: clang++
+      env: TOOLSET=clang COMPILER=clang++ CXXSTD=03,11,14,17,2a
 
     - os: linux
       compiler: g++-4.4
@@ -107,7 +122,7 @@ matrix:
 
     - os: linux
       compiler: g++-8
-      env: TOOLSET=gcc COMPILER=g++-8 CXXSTD=03,11,14,17,2a
+      env: TOOLSET=gcc COMPILER=g++-8 CXXSTD=03,11,14
       addons:
         apt:
           packages:
@@ -115,6 +130,58 @@ matrix:
           sources:
             - ubuntu-toolchain-r-test
 
+    - os: linux
+      compiler: g++-8
+      env: TOOLSET=gcc COMPILER=g++-8 CXXSTD=17,2a
+      addons:
+        apt:
+          packages:
+            - g++-8
+          sources:
+            - ubuntu-toolchain-r-test
+
+    - os: linux
+      compiler: g++-9
+      env: TOOLSET=gcc COMPILER=g++-9 CXXSTD=03,11,14
+      addons:
+        apt:
+          packages:
+            - g++-9
+          sources:
+            - ubuntu-toolchain-r-test
+
+    - os: linux
+      compiler: g++-9
+      env: TOOLSET=gcc COMPILER=g++-9 CXXSTD=17,2a
+      addons:
+        apt:
+          packages:
+            - g++-9
+          sources:
+            - ubuntu-toolchain-r-test
+
+    - os: linux
+      dist: bionic
+      compiler: g++-10
+      env: TOOLSET=gcc COMPILER=g++-10 CXXSTD=03,11,14
+      addons:
+        apt:
+          packages:
+            - g++-10
+          sources:
+            - ubuntu-toolchain-r-test
+
+    - os: linux
+      dist: bionic
+      compiler: g++-10
+      env: TOOLSET=gcc COMPILER=g++-10 CXXSTD=17,2a
+      addons:
+        apt:
+          packages:
+            - g++-10
+          sources:
+            - ubuntu-toolchain-r-test
+
     - os: linux
       compiler: g++-7
       env: UBSAN=1 TOOLSET=gcc COMPILER=g++-7 CXXSTD=03,11,14,17 UBSAN_OPTIONS=print_stacktrace=1 LINKFLAGS=-fuse-ld=gold
@@ -126,10 +193,7 @@ matrix:
             - ubuntu-toolchain-r-test
 
     - os: linux
-      compiler: clang++
-      env: TOOLSET=clang COMPILER=clang++ CXXSTD=03,11
-
-    - os: linux
+      dist: trusty
       compiler: /usr/bin/clang++
       env: TOOLSET=clang COMPILER=/usr/bin/clang++ CXXSTD=03,11
       addons:
@@ -138,6 +202,7 @@ matrix:
             - clang-3.3
 
     - os: linux
+      dist: trusty
       compiler: /usr/bin/clang++
       env: TOOLSET=clang COMPILER=/usr/bin/clang++ CXXSTD=03,11
       addons:
@@ -147,15 +212,13 @@ matrix:
 
     - os: linux
       compiler: clang++-3.5
-      env: TOOLSET=clang COMPILER=clang++-3.5 CXXSTD=03,11,14,1z
+      env: TOOLSET=clang COMPILER=clang++-3.5 CXXSTD=03,11
       addons:
         apt:
           packages:
             - clang-3.5
-            - libstdc++-4.9-dev
           sources:
             - ubuntu-toolchain-r-test
-            - llvm-toolchain-precise-3.5
 
     - os: linux
       compiler: clang++-3.6
@@ -166,7 +229,6 @@ matrix:
             - clang-3.6
           sources:
             - ubuntu-toolchain-r-test
-            - llvm-toolchain-precise-3.6
 
     - os: linux
       compiler: clang++-3.7
@@ -177,7 +239,6 @@ matrix:
             - clang-3.7
           sources:
             - ubuntu-toolchain-r-test
-            - llvm-toolchain-precise-3.7
 
     - os: linux
       compiler: clang++-3.8
@@ -186,10 +247,8 @@ matrix:
         apt:
           packages:
             - clang-3.8
-            - libstdc++-4.9-dev
           sources:
             - ubuntu-toolchain-r-test
-            - llvm-toolchain-precise-3.8
 
     - os: linux
       compiler: clang++-3.9
@@ -198,10 +257,8 @@ matrix:
         apt:
           packages:
             - clang-3.9
-            - libstdc++-4.9-dev
           sources:
             - ubuntu-toolchain-r-test
-            - llvm-toolchain-precise-3.9
 
     - os: linux
       compiler: clang++-4.0
@@ -212,7 +269,6 @@ matrix:
             - clang-4.0
           sources:
             - ubuntu-toolchain-r-test
-            - llvm-toolchain-trusty-4.0
 
     - os: linux
       compiler: clang++-5.0
@@ -223,7 +279,6 @@ matrix:
             - clang-5.0
           sources:
             - ubuntu-toolchain-r-test
-            - llvm-toolchain-trusty-5.0
 
     - os: linux
       compiler: clang++-6.0
@@ -234,7 +289,6 @@ matrix:
             - clang-6.0
           sources:
             - ubuntu-toolchain-r-test
-            - llvm-toolchain-trusty-6.0
 
     - os: linux
       compiler: clang++-7
@@ -245,21 +299,58 @@ matrix:
             - clang-7
           sources:
             - ubuntu-toolchain-r-test
-            - llvm-toolchain-trusty-7
+            - llvm-toolchain-xenial-7
 
     - os: linux
-      compiler: clang++-7
-      env: UBSAN=1 TOOLSET=clang COMPILER=clang++-7 CXXSTD=03,11,14,17,2a UBSAN_OPTIONS=print_stacktrace=1
+      compiler: clang++-8
+      env: TOOLSET=clang COMPILER=clang++-8 CXXSTD=03,11,14,17,2a
       addons:
         apt:
           packages:
-            - clang-7
-            - libstdc++-5-dev
+            - clang-8
           sources:
             - ubuntu-toolchain-r-test
-            - llvm-toolchain-trusty-7
+            - llvm-toolchain-xenial-8
 
     - os: linux
+      dist: xenial
+      compiler: clang++-9
+      env: TOOLSET=clang COMPILER=clang++-9 CXXSTD=03,11,14,17,2a
+      addons:
+        apt:
+          packages:
+            - clang-9
+          sources:
+            - ubuntu-toolchain-r-test
+            - sourceline: 'deb https://apt.llvm.org/xenial/ llvm-toolchain-xenial-9 main'
+              key_url: 'https://apt.llvm.org/llvm-snapshot.gpg.key'
+
+    - os: linux
+      dist: xenial
+      compiler: clang++-10
+      env: TOOLSET=clang COMPILER=clang++-10 CXXSTD=03,11,14,17,2a
+      addons:
+        apt:
+          packages:
+            - clang-10
+          sources:
+            - ubuntu-toolchain-r-test
+            - sourceline: 'deb https://apt.llvm.org/xenial/ llvm-toolchain-xenial-10 main'
+              key_url: 'https://apt.llvm.org/llvm-snapshot.gpg.key'
+
+    - os: linux
+      compiler: clang++-8
+      env: UBSAN=1 TOOLSET=clang COMPILER=clang++-8 CXXSTD=03,11,14,17,2a UBSAN_OPTIONS=print_stacktrace=1
+      addons:
+        apt:
+          packages:
+            - clang-8
+          sources:
+            - ubuntu-toolchain-r-test
+            - llvm-toolchain-xenial-8
+
+    - os: linux
+      dist: trusty
       compiler: clang++-libc++
       env: TOOLSET=clang COMPILER=clang++-libc++ CXXSTD=03,11,14,1z
       addons:
@@ -268,6 +359,7 @@ matrix:
             - libc++-dev
 
     - os: linux
+      dist: trusty
       compiler: clang++-libc++
       env: UBSAN=1 TOOLSET=clang COMPILER=clang++-libc++ CXXSTD=03,11,14,1z UBSAN_OPTIONS=print_stacktrace=1
       addons:
@@ -279,6 +371,17 @@ matrix:
       compiler: clang++
       env: TOOLSET=clang COMPILER=clang++ CXXSTD=03,11,14,1z
 
+    - os: osx
+      compiler: clang++
+      env: UBSAN=1 TOOLSET=clang COMPILER=clang++ CXXSTD=03,11,14,1z UBSAN_OPTIONS=print_stacktrace=1
+
+    - os: linux
+      env: CMAKE_TEST=1
+      script:
+        - mkdir __build__ && cd __build__
+        - cmake -DBOOST_ENABLE_CMAKE=1 -DBoost_VERBOSE=1 -DBOOST_INCLUDE_LIBRARIES=smart_ptr -DBUILD_TESTING=ON ..
+        - ctest --output-on-failure -R boost_smart_ptr
+
     - os: linux
       compiler: g++
       env: CMAKE_SUBDIR_TEST=1
@@ -288,6 +391,17 @@ matrix:
       - cmake --build .
       - cmake --build . --target check
 
+    - os: linux
+      env: CMAKE_INSTALL_TEST=1
+      script:
+        - mkdir __build__ && cd __build__
+        - cmake -DBOOST_ENABLE_CMAKE=1 -DBoost_VERBOSE=1 -DBOOST_INCLUDE_LIBRARIES=smart_ptr -DBUILD_TESTING=OFF -DCMAKE_INSTALL_PREFIX=~/.local ..
+        - cmake --build . --target install
+        - cd ../libs/smart_ptr/test/cmake_install_test && mkdir __build__ && cd __build__
+        - cmake -DCMAKE_INSTALL_PREFIX=~/.local ..
+        - cmake --build .
+        - cmake --build . --target check
+
 install:
   - BOOST_BRANCH=develop && [ "$TRAVIS_BRANCH" == "master" ] && BOOST_BRANCH=master || true
   - cd ..
@@ -309,7 +423,10 @@ install:
   - git submodule init tools/build
   - git submodule init libs/headers
   - git submodule init tools/boost_install
-  - git submodule update --jobs 3
+  - git submodule init tools/cmake
+  - git submodule init libs/preprocessor
+  - git submodule init libs/bind
+  - git submodule update # no --jobs 3 on non-amd64
   - cp -r $TRAVIS_BUILD_DIR/* libs/smart_ptr
   - ./bootstrap.sh
   - ./b2 headers

CMakeLists.txt

@@ -1,12 +1,10 @@
-# Copyright 2018 Mike Dev
+# Copyright 2018-2020 Peter Dimov
 # Distributed under the Boost Software License, Version 1.0.
 # See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt
 
-# Partial (add_subdirectory only) and experimental CMake support
-# Subject to change; please do not rely on the contents of this file yet
+cmake_minimum_required(VERSION 3.5...3.16)
 
-cmake_minimum_required(VERSION 3.5)
-project(BoostSmartPtr LANGUAGES CXX)
+project(boost_smart_ptr VERSION "${BOOST_SUPERPROJECT_VERSION}" LANGUAGES CXX)
 
 add_library(boost_smart_ptr INTERFACE)
 add_library(Boost::smart_ptr ALIAS boost_smart_ptr)
@@ -14,13 +12,25 @@ add_library(Boost::smart_ptr ALIAS boost_smart_ptr)
 target_include_directories(boost_smart_ptr INTERFACE include)
 
 target_link_libraries(boost_smart_ptr
-    INTERFACE
-        Boost::assert
-        Boost::config
-        Boost::core
-        Boost::move
-        Boost::predef
-        Boost::static_assert
-        Boost::throw_exception
-        Boost::type_traits
+  INTERFACE
+    Boost::assert
+    Boost::config
+    Boost::core
+    Boost::move
+    Boost::static_assert
+    Boost::throw_exception
+    Boost::type_traits
 )
+
+if(BOOST_SUPERPROJECT_VERSION)
+
+  include(BoostInstall)
+  boost_install(TARGETS boost_smart_ptr HEADER_DIRECTORY include/)
+
+endif()
+
+if(BUILD_TESTING)
+
+  add_subdirectory(test)
+
+endif()

appveyor.yml

@@ -23,6 +23,14 @@ environment:
       TOOLSET: msvc-14.1
       CXXSTD: 14,17
       ADDRMD: 32,64
+    - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2017
+      TOOLSET: clang-win
+      CXXSTD: 14,17
+      ADDRMD: 64
+    - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2019
+      TOOLSET: msvc-14.2
+      CXXSTD: 14,17
+      ADDRMD: 32,64
     - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2015
       ADDPATH: C:\cygwin\bin;
       TOOLSET: gcc
@@ -62,6 +70,7 @@ install:
   - git submodule init tools/build
   - git submodule init libs/headers
   - git submodule init tools/boost_install
+  - git submodule init libs/bind
   - git submodule update --jobs 3
   - xcopy /s /e /q %APPVEYOR_BUILD_FOLDER% libs\smart_ptr\
   - cmd /c bootstrap

doc/smart_ptr-docinfo-footer.html

@@ -1,6 +1,7 @@
 <style>
 
 *:not(pre)>code { background: none; color: #600000; }
+:not(pre):not([class^=L])>code { background: none; color: #600000; }
 table tr.even, table tr.alt, table tr:nth-of-type(even) { background: none; }
 
 </style>

doc/smart_ptr.adoc

@@ -18,34 +18,25 @@ Greg Colvin, Beman Dawes, Peter Dimov, Glen Fernandes
 :leveloffset: +1
 
 include::smart_ptr/introduction.adoc[]
-
+include::smart_ptr/changelog.adoc[]
 include::smart_ptr/scoped_ptr.adoc[]
-
 include::smart_ptr/scoped_array.adoc[]
-
 include::smart_ptr/shared_ptr.adoc[]
-
 include::smart_ptr/weak_ptr.adoc[]
-
 include::smart_ptr/make_shared.adoc[]
-
 include::smart_ptr/enable_shared_from_this.adoc[]
-
+include::smart_ptr/enable_shared_from.adoc[]
 include::smart_ptr/make_unique.adoc[]
-
+include::smart_ptr/allocate_unique.adoc[]
 include::smart_ptr/intrusive_ptr.adoc[]
-
 include::smart_ptr/intrusive_ref_counter.adoc[]
-
 include::smart_ptr/local_shared_ptr.adoc[]
-
 include::smart_ptr/make_local_shared.adoc[]
-
 include::smart_ptr/pointer_cast.adoc[]
-
 include::smart_ptr/pointer_to_other.adoc[]
-
 include::smart_ptr/atomic_shared_ptr.adoc[]
+include::smart_ptr/owner_less.adoc[]
+include::smart_ptr/owner_equal_to.adoc[]
 
 // appendix
 include::smart_ptr/techniques.adoc[]
@@ -67,7 +58,7 @@ This documentation is
 * Copyright 1999 Greg Colvin
 * Copyright 1999 Beman Dawes
 * Copyright 2002 Darin Adler
-* Copyright 2003-2017 Peter Dimov
+* Copyright 2003-2020 Peter Dimov
 * Copyright 2005, 2006 Ion Gaztañaga
 * Copyright 2008 Frank Mori Hess
 * Copyright 2012-2017 Glen Fernandes

doc/smart_ptr/allocate_unique.adoc

@@ -0,0 +1,318 @@
+////
+Copyright 2019 Glen Joseph Fernandes (glenjofe@gmail.com)
+
+Distributed under the Boost Software License, Version 1.0.
+
+See accompanying file LICENSE_1_0.txt or copy at
+http://www.boost.org/LICENSE_1_0.txt
+////
+
+[#allocate_unique]
+# allocate_unique: Creating unique_ptr
+:toc:
+:toc-title:
+:idprefix: allocate_unique_
+
+## Description
+
+The `allocate_unique` family of function templates provide convenient and safe
+ways to obtain a `std::unique_ptr` that manages a new object created using an
+allocator.
+
+## Rationale
+
+The {cpp}14 standard introduced `std::make_unique` which used operator `new` to
+create new objects. However, there is no convenient facility in the standard
+library to use an allocator for the creation of the objects managed by
+`std::unique_ptr`. Users writing allocator aware code have often requested an
+`allocate_unique` factory function. This function is to `std::unique_ptr` what
+`std::allocate_shared` is to `std::shared_ptr`.
+
+## Synopsis
+
+`allocate_unique` is defined in `<boost/smart_ptr/allocate_unique.hpp>`.
+
+[subs=+quotes]
+```
+namespace boost {
+  template<class T, class A>
+  class alloc_deleter;
+
+  template<class T, class A>
+  using alloc_noinit_deleter = alloc_deleter<T, noinit_adaptor<A>>;
+
+  `// T is not an array`
+  template<class T, class A, class... Args>
+    std::unique_ptr<T, alloc_deleter<T, A>>
+      allocate_unique(const A& a, Args&&... args);
+
+  `// T is not an array`
+  template<class T, class A>
+    std::unique_ptr<T, alloc_deleter<T, A>>
+      allocate_unique(const A& a, type_identity_t<T>&& v);
+
+  `// T is an array of unknown bounds`
+  template<class T, class A>
+    std::unique_ptr<T, alloc_deleter<T, A>>
+      allocate_unique(const A& a, std::size_t n);
+
+  `// T is an array of known bounds`
+  template<class T, class A>
+    std::unique_ptr<remove_extent_t<T>[], alloc_deleter<T, A>>
+      allocate_unique(const A& a);
+
+  `// T is an array of unknown bounds`
+  template<class T, class A>
+    std::unique_ptr<T, alloc_deleter<T, A>>
+      allocate_unique(const A& a, std::size_t n, const remove_extent_t<T>& v);
+
+  `// T is an array of known bounds`
+  template<class T, class A>
+    std::unique_ptr<remove_extent_t<T>[], alloc_deleter<T, A>>
+      allocate_unique(const A& a, const remove_extent_t<T>& v);
+
+  `// T is not an array`
+  template<class T, class A>
+    std::unique_ptr<T, alloc_noinit_deleter<T, A>>
+      allocate_unique_noinit(const A& a);
+
+  `// T is an array of unknown bounds`
+  template<class T, class A>
+    std::unique_ptr<T, alloc_noinit_deleter<T, A>>
+      allocate_unique_noinit(const A& a, std::size_t n);
+
+  `// T is an array of known bounds`
+  template<class T, class A>
+    std::unique_ptr<remove_extent_t<T>[], alloc_noinit_deleter<T, A>>
+      allocate_unique_noinit(const A& a);
+}
+```
+
+## Common Requirements
+
+The common requirements that apply to all `allocate_unique` and
+`allocate_unique_noinit` overloads, unless specified otherwise, are described
+below.
+
+Requires:: `A` shall be an _allocator_. The copy constructor and destructor
+of `A` shall not throw exceptions.
+
+Effects:: Allocates memory for an object of type `T` or `n` objects of `U`
+(if `T` is an array type of the form `U[]` and  `n` is determined by
+arguments, as specified by the concrete overload). The object is initialized
+from arguments as specified by the concrete overload. Uses a rebound copy of
+`a` (for an unspecified `value_type`) to allocate memory. If an exception is
+thrown, the functions have no effect.
+
+Returns:: A `std::unique_ptr` instance that stores and owns the address of the
+newly constructed object.
+
+Postconditions:: `r.get() != 0`, where `r` is the return value.
+
+Throws:: An exception thrown from `A::allocate`, or from the initialization of
+the object.
+
+Remarks::
+* When an object of an array type is specified to be initialized to a value of
+the same type `v`, this shall be interpreted to mean that each array element
+of the object is initialized to the corresponding element from `v`.
+* When an object of an array type is specified to be value-initialized, this
+shall be interpreted to mean that each array element of the object is
+value-initialized.
+* When a (sub)object of non-array type `U` is specified to be initialized to a
+value `v`, or constructed from `args\...`, `allocate_unique` shall perform this
+initialization via the expression
+`std::allocator_traits<A2>::construct(a2, p, expr)` (where `_expr_` is `v` or
+`std::forward<Args>(args)\...)` respectively), `p` points to storage suitable
+to hold an object of type `U`, and `a2` of type `A2` is a potentially rebound
+copy of `a`.
+* When a (sub)object of non-array type `U` is specified to be
+default-initialized, `allocate_unique_noinit` shall perform this initialization
+via the expression `::new(p) U`, where `p` has type `void*` and points to
+storage suitable to hold an object of type `U`.
+* When a (sub)object of non-array type `U` is specified to be
+value-initialized, `allocate_unique` shall perform this initialization via the
+expression `std::allocator_traits<A2>::construct(a2, p)`, where `p` points to
+storage suitable to hold an object of type `U` and `a2` of type `A2` is a
+potentially rebound copy of `a`.
+* Array elements are initialized in ascending order of their addresses.
+* When the lifetime of the object managed by the return value ends, or when the
+initialization of an array element throws an exception, the initialized
+elements should be destroyed in the reverse order of their construction.
+
+## Free Functions
+
+```
+template<class T, class A, class... Args>
+  std::unique_ptr<T, alloc_deleter<T, A>>
+    allocate_unique(const A& a, Args&&... args);
+```
+[none]
+* {blank}
++
+Constraints:: `T` is not an array.
+Returns:: A `std::unique_ptr` to an object of type `T`, constructed from
+`args\...`.
+Examples::
+* `auto p = allocate_unique<int>(a);`
+* `auto p = allocate_unique<std::vector<int>>(a, 16, 1);`
+
+```
+template<class T, class A>
+  std::unique_ptr<T, alloc_deleter<T, A>>
+    allocate_unique(const A& a, type_identity_t<T>&& v);
+```
+[none]
+* {blank}
++
+Constraints:: `T` is not an array.
+Returns:: A `std::unique_ptr` to an object of type `T`, constructed from `v`.
+Example:: `auto p = allocate_unique<std::vector<int>>(a, {1, 2});`
+
+```
+template<class T, class A>
+  std::unique_ptr<T, alloc_deleter<T, A>>
+    allocate_unique(const A& a, std::size_t n);
+```
+[none]
+* {blank}
++
+Constraints:: `T` is an array of unknown bounds.
+Returns:: A `std::unique_ptr` to a sequence of `n` value-initialized objects of
+type `remove_extent_t<T>`.
+Examples::
+* `auto p = allocate_unique<double[]>(a, 1024);`
+* `auto p = allocate_unique<double[][2][2]>(a, 6);`
+
+```
+template<class T, class A>
+  std::unique_ptr<remove_extent_t<T>[], alloc_deleter<T, A>>
+    allocate_unique(const A& a);
+```
+[none]
+* {blank}
++
+Constraints:: `T` is an array of known bounds.
+Returns:: A `std::unique_ptr` to a sequence of `extent_v<T>` value-initialized
+objects of type `remove_extent_t<T>`.
+Examples::
+* `auto p = allocate_unique<double[1024]>(a);`
+* `auto p = allocate_unique<double[6][2][2]>(a);`
+
+```
+template<class T, class A>
+  std::unique_ptr<T, alloc_deleter<T, A>>
+    allocate_unique(const A& a, std::size_t n, const remove_extent_t<T>& v);
+```
+[none]
+* {blank}
++
+Constraints:: `T` is an array of unknown bounds.
+Returns:: A `std::unique_ptr` to a sequence of `n` objects of type
+`remove_extent_t<T>`, each initialized to `v`.
+Examples::
+* `auto p = allocate_unique<double[]>(a, 1024, 1.0);`
+* `auto p = allocate_unique<double[][2]>(a, 6, {1.0, 0.0});`
+* `auto p = allocate_unique<std::vector<int>[]>(a, 4, {1, 2});`
+
+```
+template<class T, class A>
+  std::unique_ptr<remove_extent_t<T>[], alloc_deleter<T, A>>
+    allocate_unique(const A& a, const remove_extent_t<T>& v);
+```
+[none]
+* {blank}
++
+Constraints:: `T` is an array of known bounds.
+Returns:: A `std::unique_ptr` to a sequence of `extent_v<T>` objects of type
+`remove_extent_t<T>`, each initialized to `v`.
+Examples::
+* `auto p = allocate_unique<double[1024]>(a, 1.0);`
+* `auto p = allocate_unique<double[6][2]>(a, {1.0, 0.0});`
+* `auto p = allocate_unique<std::vector<int>[4]>(a, {1, 2});`
+
+```
+template<class T, class A>
+  std::unique_ptr<T, alloc_noinit_deleter<T, A>>
+    allocate_unique_noinit(const A& a);
+```
+[none]
+* {blank}
++
+Constraints:: `T` is not an array.
+Returns:: A `std::unique_ptr` to a default-initialized object of type `T`.
+Example:: `auto p = allocate_unique_noinit<double>(a);`
+
+```
+template<class T, class A>
+  std::unique_ptr<T, alloc_noinit_deleter<T, A>>
+    allocate_unique_noinit(const A& a, std::size_t n);
+```
+[none]
+* {blank}
++
+Constraints:: `T` is an array of unknown bounds.
+Returns:: A `std::unique_ptr` to a sequence of `n` default-initialized objects
+of type `remove_extent_t<T>`.
+Example:: `auto p = allocate_unique_noinit<double[]>(a, 1024);`
+
+```
+template<class T, class A>
+  std::unique_ptr<remove_extent_t<T>, alloc_noinit_deleter<T, A>>
+    allocate_unique_noinit(const A& a);
+```
+[none]
+* {blank}
++
+Constraints:: `T` is an array of known bounds.
+Returns:: A `std::unique_ptr` to a sequence of `extent_v<T>`
+default-initialized objects of type `remove_extent_t<T>`.
+Example:: `auto p = allocate_unique_noinit<double[1024]>(a);`
+
+## Deleter
+
+Class template `alloc_deleter` is the deleter used by the `allocate_unique`
+functions.
+
+### Synopsis
+
+[subs=+quotes]
+```
+template<class T, class A>
+class alloc_deleter {
+public:
+  using pointer = `unspecified`;
+
+  explicit alloc_deleter(const A& a) noexcept;
+
+  void operator()(pointer p);
+};
+```
+
+### Members
+
+[subs=+quotes]
+```
+using pointer = `unspecified`;
+```
+[none]
+* {blank}
++
+A type that satisfies _NullablePointer_.
+
+```
+explicit alloc_deleter(const A& a) noexcept;
+```
+[none]
+* {blank}
++
+Effects:: Initializes the stored allocator from `a`.
+
+```
+void operator()(pointer p);
+```
+[none]
+* {blank}
++
+Effects:: Destroys the objects and deallocates the storage referenced by `p`,
+using the stored allocator.

doc/smart_ptr/changelog.adoc

@@ -0,0 +1,38 @@
+////
+Copyright 2019, 2020 Peter Dimov
+
+Distributed under the Boost Software License, Version 1.0.
+
+See accompanying file LICENSE_1_0.txt or copy at
+http://www.boost.org/LICENSE_1_0.txt
+////
+
+[#changelog]
+# Revision History
+:toc:
+:toc-title:
+:idprefix: changelog_
+
+## Changes in 1.74.0
+
+* Added `owner_equals` to `shared_ptr`, `weak_ptr`, `local_shared_ptr`
+* Added `owner_equal_to`
+* Added `std::hash` specializations for `shared_ptr`, `local_shared_ptr`
+* Added `owner_hash_value` to `shared_ptr`, `weak_ptr`
+* Added `boost::hash` support and `std::hash`, `std::equal_to`
+  specializations for `weak_ptr`
+
+## Changes in 1.72.0
+
+* Added `allocate_unique`
+
+## Changes in 1.71.0
+
+* Added aliasing constructors to `weak_ptr`
+* Added `weak_ptr<T>::empty()`
+* Added `enable_shared_from`, `shared_from`, and `weak_from`
+
+## Changes in 1.65.0
+
+* Added `atomic_shared_ptr`
+* Added `local_shared_ptr`, `make_local_shared`

doc/smart_ptr/enable_shared_from.adoc

@@ -0,0 +1,89 @@
+////
+Copyright 2002, 2003, 2015, 2017, 2019 Peter Dimov
+
+Distributed under the Boost Software License, Version 1.0.
+
+See accompanying file LICENSE_1_0.txt or copy at
+http://www.boost.org/LICENSE_1_0.txt
+////
+
+[#enable_shared_from]
+# enable_shared_from
+:toc:
+:toc-title:
+:idprefix: enable_shared_from_
+
+## Description
+
+`enable_shared_from` is used as a base class that allows a `shared_ptr` or a
+`weak_ptr` to be obtained given a raw pointer to the object, by using the
+functions `shared_from` and `weak_from`.
+
+`enable_shared_from` differs from `enable_shared_from_this<T>` by the fact
+that it's not a template, and is its recommended replacement for new code.
+
+## Example
+
+```
+#include <boost/smart_ptr/enable_shared_from.hpp>
+#include <boost/shared_ptr.hpp>
+#include <cassert>
+
+class Y: public boost::enable_shared_from
+{
+public:
+
+    boost::shared_ptr<Y> f()
+    {
+        return boost::shared_from( this );
+    }
+};
+
+int main()
+{
+    boost::shared_ptr<Y> p(new Y);
+    boost::shared_ptr<Y> q = p->f();
+    assert(p == q);
+    assert(!(p < q || q < p)); // p and q must share ownership
+}
+```
+
+## Synopsis
+
+`enable_shared_from` is defined in `<boost/smart_ptr/enable_shared_from.hpp>`.
+
+```
+namespace boost {
+
+  class enable_shared_from: public enable_shared_from_this<enable_shared_from>
+  {
+  };
+
+  template<class T> shared_ptr<T> shared_from( T * p );
+  template<class T> weak_ptr<T> weak_from( T * p ) noexcept;
+}
+```
+
+## Functions
+
+```
+template<class T> shared_ptr<T> shared_from( T * p );
+```
+[none]
+* {blank}
++
+Returns:: `shared_ptr<T>( p\->enable_shared_from::shared_from_this(), p )`.
+
+NOTE: Throws `bad_weak_ptr` when `p` is not owned by a `shared_ptr`.
+
+```
+template<class T> weak_ptr<T> weak_from( T * p ) noexcept;
+```
+[none]
+* {blank}
++
+Returns:: `weak_ptr<T>( p\->enable_shared_from::weak_from_this(), p )`.
+
+NOTE: Unlike `shared_from(this)`, `weak_from(this)` is valid in a destructor
+      and returns a `weak_ptr` that is `expired()` but still shares ownership
+      with other `weak_ptr` instances (if any) that refer to the object.

doc/smart_ptr/enable_shared_from_this.adoc

@@ -142,3 +142,7 @@ template<class T> weak_ptr<T const> weak_from_this() const noexcept;
 * {blank}
 +
 Returns:: `weak_this_`.
+
+NOTE: Unlike `shared_from_this()`, `weak_from_this()` is valid in a destructor
+      and returns a `weak_ptr` that is `expired()` but still shares ownership
+      with other `weak_ptr` instances (if any) that refer to the object.

doc/smart_ptr/history.adoc

@@ -111,3 +111,7 @@ Glen Fernandes rewrote `allocate_shared` and `make_shared` for arrays for a more
 Peter Dimov and Glen Fernandes rewrote the documentation in Asciidoc format.
 
 Peter Dimov added `atomic_shared_ptr` and `local_shared_ptr`.
+
+## August 2019
+
+Glen Fernandes implemented `allocate_unique` for scalars and arrays.

doc/smart_ptr/introduction.adoc

@@ -11,7 +11,9 @@ http://www.boost.org/LICENSE_1_0.txt
 
 [#introduction]
 # Introduction
-:idprefix: intro
+:toc:
+:toc-title:
+:idprefix: intro_
 
 Smart pointers are objects which store pointers to dynamically allocated (heap) objects.
 They behave much like built-in {cpp} pointers except that they automatically delete the object
@@ -29,7 +31,7 @@ This library provides six smart pointer class templates:
 * `<<scoped_ptr,scoped_ptr>>`, used to contain ownership of a dynamically allocated object to the current scope;
 * `<<scoped_array,scoped_array>>`, which provides scoped ownership for a dynamically allocated array;
 * `<<shared_ptr,shared_ptr>>`, a versatile tool for managing shared ownership of an object or array;
-* `<<weak_ptr,weak_ptr>>`, a non-owning observer to a shared_ptr-managed object that can be promoted temporarily to shared_ptr;
+* `<<weak_ptr,weak_ptr>>`, a non-owning observer to a `shared_ptr`-managed object that can be promoted temporarily to `shared_ptr`;
 * `<<intrusive_ptr,intrusive_ptr>>`, a pointer to objects with an embedded reference count;
 * `<<local_shared_ptr,local_shared_ptr>>`, providing shared ownership within a single thread.
 
@@ -37,9 +39,11 @@ This library provides six smart pointer class templates:
 
 In addition, the library contains the following supporting utility functions and classes:
 
-* `<<make_shared,make_shared>>`, a factory function for creating objects that returns a `shared_ptr`;
+* `<<make_shared,make_shared>>` and `allocate_shared`, factory functions for creating objects that return a `shared_ptr`;
 * `<<make_unique,make_unique>>`, a factory function returning `std::unique_ptr`;
+* `<<allocate_unique,allocate_unique>>`, a factory function for creating objects using an allocator that returns a `std::unique_ptr`;
 * `<<enable_shared_from_this,enable_shared_from_this>>`, a helper base class that enables the acquisition of a `shared_ptr` pointing to `this`;
+* `<<enable_shared_from,enable_shared_from>>`, a newer and better replacement for `enable_shared_from_this`;
 * `<<pointer_to_other,pointer_to_other>>`, a helper trait for converting one smart pointer type to another;
 * `<<pointer_cast,static_pointer_cast>>` and companions, generic smart pointer casts;
 * `<<intrusive_ref_counter,intrusive_ref_counter>>`, a helper base class containing a reference count.

doc/smart_ptr/intrusive_ptr.adoc

@@ -77,7 +77,7 @@ namespace boost {
 
     explicit operator bool () const noexcept;
 
-    void swap(intrusive_ptr & b) noexept;
+    void swap(intrusive_ptr & b) noexcept;
   };
 
   template<class T, class U>
@@ -174,7 +174,8 @@ template<class Y> intrusive_ptr(intrusive_ptr<Y> && r);
 [none]
 * {blank}
 +
-Postconditions:: `get()` equals the old value of `r.get()`. `r.get() == 0`.
+Postconditions::
+  `get()` equals the old value of `r.get()`. `r.get() == 0`.
 
 ### destructor
 
@@ -185,7 +186,8 @@ Postconditions:: `get()` equals the old value of `r.get()`. `r.get() == 0`.
 [none]
 * {blank}
 +
-Effects:: `if(get() != 0) intrusive_ptr_release(get());`.
+Effects::
+  `if(get() != 0) intrusive_ptr_release(get());`.
 
 ### assignment
 
@@ -245,7 +247,8 @@ void reset(T * r, bool add_ref);
 [none]
 * {blank}
 +
-Effects:: Equivalent to `intrusive_ptr(r, add_ref).swap(*this)`.
+Effects::
+  Equivalent to `intrusive_ptr(r, add_ref).swap(*this)`.
 
 ### indirection
 
@@ -278,7 +281,8 @@ T * get() const noexcept;
 [none]
 * {blank}
 +
-Returns:: the stored pointer.
+Returns::
+  the stored pointer.
 
 ### detach
 
@@ -325,7 +329,8 @@ void swap(intrusive_ptr & b) noexcept;
 [none]
 * {blank}
 +
-Effects:: Exchanges the contents of the two smart pointers.
+Effects::
+  Exchanges the contents of the two smart pointers.
 
 ## Free Functions
 
@@ -412,7 +417,8 @@ template<class T> void swap(intrusive_ptr<T> & a, intrusive_ptr<T> & b) noexcept
 [none]
 * {blank}
 +
-Effects:: Equivalent to `a.swap(b)`.
+Effects::
+  Equivalent to `a.swap(b)`.
 
 ### get_pointer
 
@@ -437,7 +443,8 @@ template<class T, class U>
 [none]
 * {blank}
 +
-Returns:: `intrusive_ptr<T>(static_cast<T*>(r.get()))`.
+Returns::
+  `intrusive_ptr<T>(static_cast<T*>(r.get()))`.
 
 ### const_pointer_cast
 
@@ -449,7 +456,8 @@ template<class T, class U>
 [none]
 * {blank}
 +
-Returns:: `intrusive_ptr<T>(const_cast<T*>(r.get()))`.
+Returns::
+  `intrusive_ptr<T>(const_cast<T*>(r.get()))`.
 
 ### dynamic_pointer_cast
 
@@ -461,7 +469,8 @@ template<class T, class U>
 [none]
 * {blank}
 +
-Returns:: `intrusive_ptr<T>(dynamic_cast<T*>(r.get()))`.
+Returns::
+  `intrusive_ptr<T>(dynamic_cast<T*>(r.get()))`.
 
 ### operator<<
 

doc/smart_ptr/intrusive_ref_counter.adoc

@@ -111,7 +111,8 @@ intrusive_ref_counter& operator=(const intrusive_ref_counter& v) noexcept;
 [none]
 * {blank}
 +
-Effects:: Does nothing, reference counter is not modified.
+Effects::
+  Does nothing, reference counter is not modified.
 
 ### use_count
 
@@ -137,7 +138,8 @@ template<class Derived, class CounterPolicy>
 [none]
 * {blank}
 +
-Effects:: Increments the reference counter.
+Effects::
+  Increments the reference counter.
 
 ### intrusive_ptr_release
 

doc/smart_ptr/local_shared_ptr.adoc

@@ -124,7 +124,7 @@ namespace boost {
     template<class Y> void reset(local_shared_ptr<Y> && r, element_type * p) noexcept;
 
     // accessors
-    
+
     T & operator*() const noexcept; // only valid when T is not an array type
     T * operator->() const noexcept; // only valid when T is not an array type
 
@@ -143,12 +143,16 @@ namespace boost {
     template<class Y> operator weak_ptr<Y>() const noexcept;
 
     // swap
-    
+
     void swap(local_shared_ptr & b) noexcept;
 
     // owner_before
-    
-    template<class Y> bool owner_before(local_shared_ptr<Y> const & rhs) const noexcept;
+
+    template<class Y> bool owner_before(local_shared_ptr<Y> const & r) const noexcept;
+
+    // owner_equals
+
+    template<class Y> bool owner_equals(local_shared_ptr<Y> const & r) const noexcept;
   };
 
   // comparisons
@@ -459,7 +463,8 @@ template<class Y> void reset(local_shared_ptr<Y> && r, element_type * p) noexcep
 [none]
 * {blank}
 +
-Effects:: Equivalent to `local_shared_ptr(std::move(r), p).swap(*this)`.
+Effects::
+  Equivalent to `local_shared_ptr(std::move(r), p).swap(*this)`.
 
 ### indirection
 ```
@@ -497,7 +502,8 @@ element_type * get() const noexcept;
 [none]
 * {blank}
 +
-Returns:: The stored pointer.
+Returns::
+  The stored pointer.
 
 ### local_use_count
 ```
@@ -506,7 +512,8 @@ long local_use_count() const noexcept;
 [none]
 * {blank}
 +
-Returns:: The number of `local_shared_ptr` objects, `*this` included, that share ownership with `*this`, or 0 when `*this` is empty.
+Returns::
+  The number of `local_shared_ptr` objects, `*this` included, that share ownership with `*this`, or 0 when `*this` is empty.
 
 ### conversions
 ```
@@ -538,16 +545,28 @@ void swap(local_shared_ptr & b) noexcept;
 [none]
 * {blank}
 +
-Effects:: Exchanges the contents of the two smart pointers.
+Effects::
+  Exchanges the contents of the two smart pointers.
 
 ### owner_before
 ```
-template<class Y> bool owner_before(local_shared_ptr<Y> const & rhs) const noexcept;
+template<class Y> bool owner_before(local_shared_ptr<Y> const & r) const noexcept;
 ```
 [none]
 * {blank}
 +
-Effects:: See the description of `operator<`.
+Returns::
+  See the description of `operator<`.
+
+### owner_equals
+```
+template<class Y> bool owner_equals(local_shared_ptr<Y> const & r) const noexcept;
+```
+[none]
+* {blank}
++
+Returns::
+  `true` if and only if `*this` and `r` share ownership or are both empty.
 
 ## Free Functions
 
@@ -631,7 +650,8 @@ template<class T> void swap(local_shared_ptr<T> & a, local_shared_ptr<T> & b) no
 [none]
 * {blank}
 +
-Effects:: Equivalent to `a.swap(b)`.
+Effects::
+  Equivalent to `a.swap(b)`.
 
 ### get_pointer
 ```

doc/smart_ptr/make_local_shared.adoc

@@ -27,25 +27,25 @@ are analogous to `make_shared` and `allocate_shared` for `shared_ptr`.
 [subs=+quotes]
 ```
 namespace boost {
-  `// only if T is not an array type`
+  `// T is not an array`
   template<class T, class... Args>
     local_shared_ptr<T> make_local_shared(Args&&... args);
   template<class T, class A, class... Args>
     local_shared_ptr<T> allocate_local_shared(const A& a, Args&&... args);
 
-  `// only if T is an array type of the form U[]`
+  `// T is an array of unknown bounds`
   template<class T>
     local_shared_ptr<T> make_local_shared(std::size_t n);
   template<class T, class A>
     local_shared_ptr<T> allocate_local_shared(const A& a, std::size_t n);
 
-  `// only if T is an array type of the form U[N]`
+  `// T is an array of known bounds`
   template<class T>
     local_shared_ptr<T> make_local_shared();
   template<class T, class A>
     local_shared_ptr<T> allocate_local_shared(const A& a);
 
-  `// only if T is an array type of the form U[]`
+  `// T is an array of unknown bounds`
   template<class T>
     local_shared_ptr<T> make_local_shared(std::size_t n,
       const remove_extent_t<T>& v);
@@ -53,20 +53,20 @@ namespace boost {
     local_shared_ptr<T> allocate_local_shared(const A& a, std::size_t n,
       const remove_extent_t<T>& v);
 
-  `// only if T is an array type of the form U[N]`
+  `// T is an array of known bounds`
   template<class T>
     local_shared_ptr<T> make_local_shared(const remove_extent_t<T>& v);
   template<class T, class A>
     local_shared_ptr<T> allocate_local_shared(const A& a,
       const remove_extent_t<T>& v);
 
-  `// only if T is not an array type of the form U[]`
+  `// T is not an array of known bounds`
   template<class T>
     local_shared_ptr<T> make_local_shared_noinit();
   template<class T, class A>
     local_shared_ptr<T> allocate_local_shared_noinit(const A& a);
 
-  `// only if T is an array type of the form U[N]`
+  `// T is an array of unknown bounds`
   template<class T>
     local_shared_ptr<T> make_local_shared_noinit(std::size_t n);
   template<class T, class A>

doc/smart_ptr/make_shared.adoc

@@ -55,43 +55,43 @@ types.
 [subs=+quotes]
 ```
 namespace boost {
-  `// only if T is not an array type`
+  `// T is not an array`
   template<class T, class... Args>
     shared_ptr<T> make_shared(Args&&... args);
   template<class T, class A, class... Args>
     shared_ptr<T> allocate_shared(const A& a, Args&&... args);
 
-  `// only if T is an array type of the form U[]`
+  `// T is an array of unknown bounds`
   template<class T>
     shared_ptr<T> make_shared(std::size_t n);
   template<class T, class A>
     shared_ptr<T> allocate_shared(const A& a, std::size_t n);
 
-  `// only if T is an array type of the form U[N]`
+  `// T is an array of known bounds`
   template<class T>
     shared_ptr<T> make_shared();
   template<class T, class A>
     shared_ptr<T> allocate_shared(const A& a);
 
-  `// only if T is an array type of the form U[]`
+  `// T is an array of unknown bounds`
   template<class T> shared_ptr<T>
     make_shared(std::size_t n, const remove_extent_t<T>& v);
   template<class T, class A> shared_ptr<T>
     allocate_shared(const A& a, std::size_t n, const remove_extent_t<T>& v);
 
-  `// only if T is an array type of the form U[N]`
+  `// T is an array of known bounds`
   template<class T>
     shared_ptr<T> make_shared(const remove_extent_t<T>& v);
   template<class T, class A>
     shared_ptr<T> allocate_shared(const A& a, const remove_extent_t<T>& v);
 
-  `// only if T is not an array type of the form U[]`
+  `// T is not an array of unknown bounds`
   template<class T>
     shared_ptr<T> make_shared_noinit();
   template<class T, class A>
     shared_ptr<T> allocate_shared_noinit(const A& a);
 
-  `// only if T is an array type of the form U[N]`
+  `// T is an array of unknown bounds`
   template<class T>
     shared_ptr<T> make_shared_noinit(std::size_t n);
   template<class T, class A>
@@ -144,7 +144,7 @@ perform this initialization via the expression
 `std::allocator_traits<A2>::construct(a2, p, expr)` (where
 `_expr_` is `v` or `std::forward<Args>(args)\...)` respectively), `p`
 points to storage suitable to hold an object of type `U`, and `a2` of
-type `A2` is a rebound copy `a` such that its `value_type` is `U`.
+type `A2` is a potentially rebound copy of `a`.
 * When a (sub)object of non-array type `U` is specified to be
 default-initialized, `make_shared_noinit` and `allocate_shared_noinit` shall
 perform this initialization via the expression `::new(p) U`, where
@@ -158,7 +158,7 @@ storage suitable to hold an object of type `U`.
 value-initialized, `allocate_shared` shall perform this initialization via the
 expression `std::allocator_traits<A2>::construct(a2, p)`, where
 `p` points to storage suitable to hold an object of type `U` and `a2` of
-type `A2` is a rebound copy of `a` such that its value_type is `U`.
+type `A2` is a potentially rebound copy of `a`.
 * Array elements are initialized in ascending order of their addresses.
 * When the lifetime of the object managed by the return value ends, or when
 the initialization of an array element throws an exception, the initialized
@@ -181,8 +181,7 @@ template<class T, class A, class... Args>
 [none]
 * {blank}
 +
-Remarks:: These overloads shall only participate in overload resolution when
-`T` is not an array type.
+Constraints:: `T` is not an array.
 Returns:: A `shared_ptr` to an object of type `T`, constructed from
 `args\...`.
 Examples::
@@ -200,10 +199,9 @@ template<class T, class A>
 [none]
 * {blank}
 +
-Remarks:: These overloads shall only participate in overload resolution when
-`T` is an array type of the form `U[]`.
+Constraints:: `T` is an array of unknown bounds.
 Returns:: A `shared_ptr` to a sequence of `n` value-initialized objects of
-type `U`.
+type `remove_extent_t<T>`.
 Examples::
 * `auto p = make_shared<double[]>(1024);`
 * `auto p = make_shared<double[][2][2]>(6);`
@@ -219,10 +217,9 @@ template<class T, class A>
 [none]
 * {blank}
 +
-Remarks:: These overloads shall only participate in overload resolution when
-`T` is an array type of the form `U[N]`.
-Returns:: A `shared_ptr` to a sequence of `N` value-initialized objects of
-type `U`.
+Constraints:: `T` is an array of known bounds.
+Returns:: A `shared_ptr` to a sequence of `extent_v<T>` value-initialized
+objects of type `remove_extent_t<T>`.
 Examples::
 * `auto p = make_shared<double[1024]>();`
 * `auto p = make_shared<double[6][2][2]>();`
@@ -238,10 +235,9 @@ template<class T, class A> shared_ptr<T>
 [none]
 * {blank}
 +
-Remarks:: These overloads shall only participate in overload resolution when
-`T` is an array type of the form `U[]`.
-Returns:: A `shared_ptr` to a sequence of `n` objects of type `U`, each
-initialized to `v`.
+Constraints:: `T` is an array of unknown bounds.
+Returns:: A `shared_ptr` to a sequence of `n` objects of type
+`remove_extent_t<T>`, each initialized to `v`.
 Examples::
 * `auto p = make_shared<double[]>(1024, 1.0);`
 * `auto p = make_shared<double[][2]>(6, {1.0, 0.0});`
@@ -258,10 +254,9 @@ template<class T, class A>
 [none]
 * {blank}
 +
-Remarks:: These overloads shall only participate in overload resolution when
-`T` is an array type of the form `U[N]`.
-Returns:: A `shared_ptr` to a sequence of `N` objects of type `U`, each
-initialized to `v`.
+Constraints:: `T` is an array of known bounds.
+Returns:: A `shared_ptr` to a sequence of `extent_v<T>` objects of type
+`remove_extent_t<T>`, each initialized to `v`.
 Examples::
 * `auto p = make_shared<double[1024]>(1.0);`
 * `auto p = make_shared<double[6][2]>({1.0, 0.0});`
@@ -278,10 +273,10 @@ template<class T, class A>
 [none]
 * {blank}
 +
-Remarks:: These overloads shall only participate in overload resolution when
-`T` is not an array type, or an array type of the `U[N]`.
+Constraints:: `T` is not an array, or is an array of known bounds.
 Returns:: A `shared_ptr` to a default-initialized object of type `T`, or a
-sequence of `N` default-initialized objects of type `U`, respectively.
+sequence of `extent_v<T>` default-initialized objects of type
+`remove_extent_t<T>`, respectively.
 Example:: `auto p = make_shared_noinit<double[1024]>();`
 
 ```
@@ -295,8 +290,7 @@ template<class T, class A>
 [none]
 * {blank}
 +
-Remarks:: These overloads shall only participate in overload resolution when
-`T` is an array type of the form `U[]`.
+Constraints:: `T` is an array of unknown bounds.
 Returns:: A `shared_ptr` to a sequence of `_n_` default-initialized objects
-of type `U`.
+of type `remove_extent_t<T>`.
 Example:: `auto p = make_shared_noinit<double[]>(1024);`

doc/smart_ptr/make_unique.adoc

@@ -40,23 +40,23 @@ feature with `std::make_unique`.
 [subs=+quotes]
 ```
 namespace boost {
-  `// only if T is not an array type`
+  `// T is not an array`
   template<class T, class... Args>
     std::unique_ptr<T> make_unique(Args&&... args);
 
-  `// only if T is not an array type`
+  `// T is not an array`
   template<class T>
-    std::unique_ptr<T> make_unique(remove_reference_t<T>&& v);
+    std::unique_ptr<T> make_unique(type_identity_t<T>&& v);
 
-  `// only if T is an array type of the form U[]`
+  `// T is an array of unknown bounds`
   template<class T>
     std::unique_ptr<T> make_unique(std::size_t n);
 
-  `// only if T is not an array type`
+  `// T is not an array`
   template<class T>
     std::unique_ptr<T> make_unique_noinit();
 
-  `// only if T is an array type of the form U[]`
+  `// T is an array of unknown bounds`
   template<class T>
     std::unique_ptr<T> make_unique_noinit(std::size_t n);
 }
@@ -71,20 +71,18 @@ template<class T, class... Args>
 [none]
 * {blank}
 +
-Remarks:: These overloads shall only participate in overload resolution when
-`T` is not an array type.
+Constraints:: `T` is not an array.
 Returns:: `std::unique_ptr<T>(new T(std::forward<Args>(args)\...)`.
 Example:: `auto p = make_unique<int>();`
 
 ```
 template<class T>
-  std::unique_ptr<T> make_unique(remove_reference_t<T>&& v);
+  std::unique_ptr<T> make_unique(type_identity_t<T>&& v);
 ```
 [none]
 * {blank}
 +
-Remarks:: These overloads shall only participate in overload resolution when
-`T` is not an array type.
+Constraints:: `T` is not an array.
 Returns:: `std::unique_ptr<T>(new T(std::move(v))`.
 Example:: `auto p = make_unique<std::vector<int> >({1, 2});`
 
@@ -95,9 +93,8 @@ template<class T>
 [none]
 * {blank}
 +
-Remarks:: These overloads shall only participate in overload resolution when
-`T` is an array type of the form `U[]`.
-Returns:: `std::unique_ptr<U[]>(new U[n]())`.
+Constraints:: `T` is an array of unknown bounds.
+Returns:: `std::unique_ptr<T>(new remove_extent_t<T>[n]())`.
 Example:: `auto p = make_unique<double[]>(1024);`
 
 ```
@@ -107,10 +104,9 @@ template<class T>
 [none]
 * {blank}
 +
-Remarks:: These overloads shall only participate in overload resolution when
-`T` is not an array type.
+Constraints:: `T` is not an array.
 Returns:: `std::unique_ptr<T>(new T)`.
-Example:: `auto p = make_unique_noinit<double[1024]>();`
+Example:: `auto p = make_unique_noinit<std::array<double, 1024> >();`
 
 ```
 template<class T>
@@ -119,7 +115,6 @@ template<class T>
 [none]
 * {blank}
 +
-Remarks:: These overloads shall only participate in overload resolution when
-`T` is an array type of the form `U[]`.
-Returns:: `std::unique_ptr<U[]>(new U[n])`.
+Constraints:: `T` is an array of unknown bounds.
+Returns:: `std::unique_ptr<T>(new remove_extent_t<T>[n])`.
 Example:: `auto p = make_unique_noinit<double[]>(1024);`

doc/smart_ptr/owner_equal_to.adoc

@@ -0,0 +1,45 @@
+////
+Copyright 2020 Peter Dimov
+Distributed under the Boost Software License, Version 1.0.
+https://www.boost.org/LICENSE_1_0.txt
+////
+
+[#owner_equal_to]
+# owner_equal_to
+:toc:
+:toc-title:
+:idprefix: owner_equal_to_
+
+## Description
+
+`owner_equal_to<T>` is a helper function object that compares two smart
+pointer objects using `owner_equals`.
+
+## Synopsis
+
+`owner_equal_to` is defined in `<boost/smart_ptr/owner_equal_to.hpp>`.
+
+```
+namespace boost {
+
+  template<class T = void> struct owner_equal_to
+  {
+    typedef bool result_type;
+    typedef T first_argument_type;
+    typedef T second_argument_type;
+
+    template<class U, class V> bool operator()( U const & u, V const & v ) const noexcept;
+  };
+}
+```
+
+## Members
+
+```
+template<class U, class V> bool operator()( U const & u, V const & v ) const noexcept;
+```
+[none]
+* {blank}
++
+Returns::
+  `u.owner_equals( v )`.

doc/smart_ptr/owner_less.adoc

@@ -0,0 +1,50 @@
+////
+Copyright 2020 Peter Dimov
+Distributed under the Boost Software License, Version 1.0.
+https://www.boost.org/LICENSE_1_0.txt
+////
+
+[#owner_less]
+# owner_less
+:toc:
+:toc-title:
+:idprefix: owner_less_
+
+## Description
+
+`owner_less<T>` is a helper function object that compares two smart
+pointer objects using `owner_before`. It is only provided for compatibility
+with {cpp}11 and corresponds to the standard component of the same name.
+
+When using Boost smart pointers, the use of `owner_less` is unnecessary, as
+the supplied `operator<` overloads (and, correspondingly, `std::less`) return
+the same result.
+
+## Synopsis
+
+`owner_less` is defined in `<boost/smart_ptr/owner_less.hpp>`.
+
+```
+namespace boost {
+
+  template<class T = void> struct owner_less
+  {
+    typedef bool result_type;
+    typedef T first_argument_type;
+    typedef T second_argument_type;
+
+    template<class U, class V> bool operator()( U const & u, V const & v ) const noexcept;
+  };
+}
+```
+
+## Members
+
+```
+template<class U, class V> bool operator()( U const & u, V const & v ) const noexcept;
+```
+[none]
+* {blank}
++
+Returns::
+  `u.owner_before( v )`.

doc/smart_ptr/shared_ptr.adoc

@@ -132,7 +132,6 @@ namespace boost {
     template<class Y> shared_ptr(shared_ptr<Y> && r) noexcept;
 
     template<class Y> shared_ptr(shared_ptr<Y> const & r, element_type * p) noexcept;
-
     template<class Y> shared_ptr(shared_ptr<Y> && r, element_type * p) noexcept;
 
     template<class Y> explicit shared_ptr(weak_ptr<Y> const & r);
@@ -179,8 +178,13 @@ namespace boost {
 
     void swap(shared_ptr & b) noexcept;
 
-    template<class Y> bool owner_before(shared_ptr<Y> const & rhs) const noexcept;
-    template<class Y> bool owner_before(weak_ptr<Y> const & rhs) const noexcept;
+    template<class Y> bool owner_before(shared_ptr<Y> const & r) const noexcept;
+    template<class Y> bool owner_before(weak_ptr<Y> const & r) const noexcept;
+
+    template<class Y> bool owner_equals(shared_ptr<Y> const & r) const noexcept;
+    template<class Y> bool owner_equals(weak_ptr<Y> const & r) const noexcept;
+
+    std::size_t owner_hash_value() const noexcept;
   };
 
   template<class T, class U>
@@ -373,7 +377,7 @@ template<class Y> shared_ptr(shared_ptr<Y> const & r, element_type * p) noexcept
 [none]
 * {blank}
 +
-Effects:: constructs a `shared_ptr` that shares ownership with `r` and stores `p`.
+Effects:: Copy-constructs a `shared_ptr` from `r`, while storing `p` instead.
 
 Postconditions:: `get() == p && use_count() == r.use_count()`.
 
@@ -561,7 +565,8 @@ template<class Y> void reset(shared_ptr<Y> && r, element_type * p) noexcept;
 [none]
 * {blank}
 +
-Effects:: Equivalent to `shared_ptr(std::move(r), p).swap(*this)`.
+Effects::
+  Equivalent to `shared_ptr(std::move(r), p).swap(*this)`.
 
 ### indirection
 ```
@@ -599,7 +604,8 @@ element_type * get() const noexcept;
 [none]
 * {blank}
 +
-Returns:: The stored pointer.
+Returns::
+  The stored pointer.
 
 ### unique
 ```
@@ -608,7 +614,8 @@ bool unique() const noexcept;
 [none]
 * {blank}
 +
-Returns:: `use_count() == 1`.
+Returns::
+  `use_count() == 1`.
 
 ### use_count
 ```
@@ -617,7 +624,8 @@ long use_count() const noexcept;
 [none]
 * {blank}
 +
-Returns:: The number of `shared_ptr` objects, `*this` included, that share ownership with `*this`, or 0 when `*this` is empty.
+Returns::
+  The number of `shared_ptr` objects, `*this` included, that share ownership with `*this`, or 0 when `*this` is empty.
 
 ### conversions
 ```
@@ -642,19 +650,45 @@ void swap(shared_ptr & b) noexcept;
 [none]
 * {blank}
 +
-Effects:: Exchanges the contents of the two smart pointers.
+Effects::
+  Exchanges the contents of the two smart pointers.
 
 ### owner_before
 ```
-template<class Y> bool owner_before(shared_ptr<Y> const & rhs) const noexcept;
+template<class Y> bool owner_before(shared_ptr<Y> const & r) const noexcept;
 ```
 ```
-template<class Y> bool owner_before(weak_ptr<Y> const & rhs) const noexcept;
+template<class Y> bool owner_before(weak_ptr<Y> const & r) const noexcept;
 ```
 [none]
 * {blank}
 +
-Effects:: See the description of `operator<`.
+Returns::
+  See the description of `operator<`.
+
+### owner_equals
+```
+template<class Y> bool owner_equals(shared_ptr<Y> const & r) const noexcept;
+```
+```
+template<class Y> bool owner_equals(weak_ptr<Y> const & r) const noexcept;
+```
+[none]
+* {blank}
++
+Returns::
+  `true` if and only if `*this` and `r` share ownership or are both empty.
+
+### owner_hash_value
+```
+std::size_t owner_hash_value() const noexcept;
+```
+[none]
+* {blank}
++
+Returns::
+  An unspecified hash value such that two instances that share ownership
+  have the same hash value.
 
 ## Free Functions
 
@@ -722,7 +756,8 @@ template<class T> void swap(shared_ptr<T> & a, shared_ptr<T> & b) noexcept;
 [none]
 * {blank}
 +
-Effects:: Equivalent to `a.swap(b)`.
+Effects::
+  Equivalent to `a.swap(b)`.
 
 ### get_pointer
 ```
@@ -806,7 +841,8 @@ template<class D, class T>
 [none]
 * {blank}
 +
-Returns:: If `*this` owns a deleter `d` of type (cv-unqualified) `D`, returns `&d`; otherwise returns 0.
+Returns::
+  If `*this` owns a deleter `d` of type (cv-unqualified) `D`, returns `&d`; otherwise returns 0.
 
 ### Atomic Access
 

doc/smart_ptr/weak_ptr.adoc

@@ -88,6 +88,10 @@ namespace boost {
 
     weak_ptr(weak_ptr && r) noexcept;
 
+    template<class Y> weak_ptr(shared_ptr<Y> const & r, element_type * p) noexcept;
+    template<class Y> weak_ptr(weak_ptr<Y> const & r, element_type * p) noexcept;
+    template<class Y> weak_ptr(weak_ptr<Y> && r, element_type * p) noexcept;
+
     ~weak_ptr() noexcept;
 
     weak_ptr & operator=(weak_ptr const & r) noexcept;
@@ -98,6 +102,8 @@ namespace boost {
     long use_count() const noexcept;
     bool expired() const noexcept;
 
+    bool empty() const noexcept;
+
     shared_ptr<T> lock() const noexcept;
 
     void reset() noexcept;
@@ -106,6 +112,11 @@ namespace boost {
 
     template<class Y> bool owner_before( weak_ptr<Y> const & r ) const noexcept;
     template<class Y> bool owner_before( shared_ptr<Y> const & r ) const noexcept;
+
+    template<class Y> bool owner_equals( weak_ptr<Y> const & r ) const noexcept;
+    template<class Y> bool owner_equals( shared_ptr<Y> const & r ) const noexcept;
+
+    std::size_t owner_hash_value() const noexcept;
   };
 
   template<class T, class U>
@@ -157,6 +168,21 @@ weak_ptr(weak_ptr && r) noexcept;
 Effects:: Constructs a `weak_ptr` that has the value `r` held.
 Postconditions:: `r` is empty.
 
+### aliasing constructors
+```
+template<class Y> weak_ptr(shared_ptr<Y> const & r, element_type * p) noexcept;
+```
+```
+template<class Y> weak_ptr(weak_ptr<Y> const & r, element_type * p) noexcept;
+```
+```
+template<class Y> weak_ptr(weak_ptr<Y> && r, element_type * p) noexcept;
+```
+Effects:: Constructs a `weak_ptr` from `r` as if by using the corresponding converting/copy/move constructor, but stores `p` instead.
+Postconditions:: `use_count() == r.use_count()`. When `!expired()`, `shared_ptr<T>(*this).get() == p`.
+
+NOTE: These constructors are an extension, not present in `std::weak_ptr`.
+
 ### destructor
 ```
 ~weak_ptr() noexcept;
@@ -164,7 +190,8 @@ Postconditions:: `r` is empty.
 [none]
 * {blank}
 +
-Effects:: Destroys this `weak_ptr` but has no effect on the object its stored pointer points to.
+Effects::
+  Destroys this `weak_ptr` but has no effect on the object its stored pointer points to.
 
 ### assignment
 ```
@@ -193,7 +220,8 @@ long use_count() const noexcept;
 [none]
 * {blank}
 +
-Returns:: 0 if `*this` is empty; otherwise, the number of `shared_ptr` objects that share ownership with `*this`.
+Returns::
+  0 if `*this` is empty; otherwise, the number of `shared_ptr` objects that share ownership with `*this`.
 
 ### expired
 ```
@@ -202,7 +230,19 @@ bool expired() const noexcept;
 [none]
 * {blank}
 +
-Returns:: `use_count() == 0`.
+Returns::
+  `use_count() == 0`.
+
+### empty
+```
+bool empty() const noexcept;
+```
+[none]
+* {blank}
++
+Returns:: `true` when `*this` is empty, `false` otherwise.
+
+NOTE: This function is an extension, not present in `std::weak_ptr`.
 
 ### lock
 ```
@@ -211,7 +251,8 @@ shared_ptr<T> lock() const noexcept;
 [none]
 * {blank}
 +
-Returns:: `expired()? shared_ptr<T>(): shared_ptr<T>(*this)`.
+Returns::
+  `expired()? shared_ptr<T>(): shared_ptr<T>(*this)`.
 
 ### reset
 ```
@@ -220,7 +261,8 @@ void reset() noexcept;
 [none]
 * {blank}
 +
-Effects:: Equivalent to `weak_ptr().swap(*this)`.
+Effects::
+  Equivalent to `weak_ptr().swap(*this)`.
 
 ### swap
 ```
@@ -229,8 +271,10 @@ void swap(weak_ptr & b) noexcept;
 [none]
 * {blank}
 +
-Effects:: Exchanges the contents of the two smart pointers.
+Effects::
+  Exchanges the contents of the two smart pointers.
 
+### owner_before
 ```
 template<class Y> bool owner_before( weak_ptr<Y> const & r ) const noexcept;
 ```
@@ -240,7 +284,32 @@ template<class Y> bool owner_before( shared_ptr<Y> const & r ) const noexcept;
 [none]
 * {blank}
 +
-Returns:: See the description of `operator<`.
+Returns::
+  See the description of `operator<`.
+
+### owner_equals
+```
+template<class Y> bool owner_equals( weak_ptr<Y> const & r ) const noexcept;
+```
+```
+template<class Y> bool owner_equals( shared_ptr<Y> const & r ) const noexcept;
+```
+[none]
+* {blank}
++
+Returns::
+  `true` if and only if `*this` and `r` share ownership or are both empty.
+
+### owner_hash_value
+```
+std::size_t owner_hash_value() const noexcept;
+```
+[none]
+* {blank}
++
+Returns::
+  An unspecified hash value such that two instances that share ownership
+  have the same hash value.
 
 ## Free Functions
 
@@ -266,7 +335,8 @@ template<class T> void swap(weak_ptr<T> & a, weak_ptr<T> & b) noexcept;
 [none]
 * {blank}
 +
-Effects:: Equivalent to `a.swap(b)`.
+Effects::
+  Equivalent to `a.swap(b)`.
 
 ## Frequently Asked Questions
 

extras/src/sp_debug_hooks.cpp

@@ -73,7 +73,7 @@ void * operator new(size_t n) throw(bad_alloc)
     return p;
 }
 
-#if !defined(__BORLANDC__) || (__BORLANDC__ > 0x551)
+#if !defined(BOOST_BORLANDC) || (BOOST_BORLANDC > 0x551)
 
 void * operator new(size_t n, nothrow_t const &) throw()
 {
@@ -95,7 +95,7 @@ void * operator new[](size_t n) throw(bad_alloc)
     return p;
 }
 
-#if !defined(__BORLANDC__) || (__BORLANDC__ > 0x551)
+#if !defined(BOOST_BORLANDC) || (BOOST_BORLANDC > 0x551)
 
 void * operator new[](size_t n, nothrow_t const &) throw()
 {
@@ -205,7 +205,7 @@ void operator delete(void * p) throw()
     free(pm);
 }
 
-#if !defined(__BORLANDC__) || (__BORLANDC__ > 0x551)
+#if !defined(BOOST_BORLANDC) || (BOOST_BORLANDC > 0x551)
 
 void operator delete(void * p, nothrow_t const &) throw()
 {
@@ -231,7 +231,7 @@ void operator delete[](void * p) throw()
     free(pm);
 }
 
-#if !defined(__BORLANDC__) || (__BORLANDC__ > 0x551)
+#if !defined(BOOST_BORLANDC) || (BOOST_BORLANDC > 0x551)
 
 void operator delete[](void * p, nothrow_t const &) throw()
 {

include/boost/detail/lightweight_thread.hpp

@@ -21,168 +21,6 @@
 //  template<class F> int lw_thread_create( lw_thread_t & th, F f );
 //  void lw_thread_join( lw_thread_t th );
 
-
-#include <boost/config.hpp>
-#include <memory>
-#include <cerrno>
-
-#if defined( BOOST_HAS_PTHREADS )
-
-#include <pthread.h>
-
-namespace boost
-{
-namespace detail
-{
-
-typedef ::pthread_t lw_thread_t;
-
-inline int lw_thread_create_( lw_thread_t* thread, const pthread_attr_t* attr, void* (*start_routine)( void* ), void* arg )
-{
-    return ::pthread_create( thread, attr, start_routine, arg );
-}
-
-inline void lw_thread_join( lw_thread_t th )
-{
-    ::pthread_join( th, 0 );
-}
-
-} // namespace detail
-} // namespace boost
-
-#else // defined( BOOST_HAS_PTHREADS )
-
-#include <windows.h>
-#include <process.h>
-
-namespace boost
-{
-namespace detail
-{
-
-typedef HANDLE lw_thread_t;
-
-inline int lw_thread_create_( lw_thread_t * thread, void const *, unsigned (__stdcall * start_routine) (void*), void* arg )
-{
-    HANDLE h = (HANDLE)_beginthreadex( 0, 0, start_routine, arg, 0, 0 );
-
-    if( h != 0 )
-    {
-        *thread = h;
-        return 0;
-    }
-    else
-    {
-        return EAGAIN;
-    }
-}
-
-inline void lw_thread_join( lw_thread_t thread )
-{
-    ::WaitForSingleObject( thread, INFINITE );
-    ::CloseHandle( thread );
-}
-
-} // namespace detail
-} // namespace boost
-
-#endif // defined( BOOST_HAS_PTHREADS )
-
-
-namespace boost
-{
-namespace detail
-{
-
-class lw_abstract_thread
-{
-public:
-
-    virtual ~lw_abstract_thread() {}
-    virtual void run() = 0;
-};
-
-#if defined( BOOST_HAS_PTHREADS )
-
-extern "C" void * lw_thread_routine( void * pv )
-{
-#if defined(BOOST_NO_CXX11_SMART_PTR)
-
-    std::auto_ptr<lw_abstract_thread> pt( static_cast<lw_abstract_thread *>( pv ) );
-
-#else
-
-    std::unique_ptr<lw_abstract_thread> pt( static_cast<lw_abstract_thread *>( pv ) );
-
-#endif
-
-    pt->run();
-
-    return 0;
-}
-
-#else
-
-unsigned __stdcall lw_thread_routine( void * pv )
-{
-#if defined(BOOST_NO_CXX11_SMART_PTR)
-
-    std::auto_ptr<lw_abstract_thread> pt( static_cast<lw_abstract_thread *>( pv ) );
-
-#else
-
-    std::unique_ptr<lw_abstract_thread> pt( static_cast<lw_abstract_thread *>( pv ) );
-
-#endif
-
-    pt->run();
-
-    return 0;
-}
-
-#endif
-
-template<class F> class lw_thread_impl: public lw_abstract_thread
-{
-public:
-
-    explicit lw_thread_impl( F f ): f_( f )
-    {
-    }
-
-    void run()
-    {
-        f_();
-    }
-
-private:
-
-    F f_;
-};
-
-template<class F> int lw_thread_create( lw_thread_t & th, F f )
-{
-#if defined(BOOST_NO_CXX11_SMART_PTR)
-
-    std::auto_ptr<lw_abstract_thread> p( new lw_thread_impl<F>( f ) );
-
-#else
-
-    std::unique_ptr<lw_abstract_thread> p( new lw_thread_impl<F>( f ) );
-
-#endif
-
-    int r = lw_thread_create_( &th, 0, lw_thread_routine, p.get() );
-
-    if( r == 0 )
-    {
-        p.release();
-    }
-
-    return r;
-}
-
-} // namespace detail
-} // namespace boost
+#include <boost/smart_ptr/detail/lightweight_thread.hpp>
 
 #endif // #ifndef BOOST_DETAIL_LIGHTWEIGHT_THREAD_HPP_INCLUDED

include/boost/smart_ptr/allocate_local_shared_array.hpp

@@ -21,11 +21,12 @@ public:
         count_ = shared_count(base);
     }
 
-    virtual void local_cb_destroy() BOOST_SP_NOEXCEPT {
+    void local_cb_destroy() BOOST_SP_NOEXCEPT BOOST_OVERRIDE {
         shared_count().swap(count_);
     }
 
-    virtual shared_count local_cb_get_shared_count() const BOOST_SP_NOEXCEPT {
+    shared_count local_cb_get_shared_count() const
+        BOOST_SP_NOEXCEPT BOOST_OVERRIDE {
         return count_;
     }
 
@@ -72,21 +73,19 @@ inline typename enable_if_<is_unbounded_array<T>::value,
     local_shared_ptr<T> >::type
 allocate_local_shared(const A& allocator, std::size_t count)
 {
-    typedef typename remove_extent<T>::type type;
-    typedef typename detail::sp_array_scalar<T>::type scalar;
-    typedef typename detail::sp_bind_allocator<A, scalar>::type other;
+    typedef typename detail::sp_array_element<T>::type element;
+    typedef typename allocator_rebind<A, element>::type other;
     typedef detail::lsp_array_state<other> state;
     typedef detail::sp_array_base<state> base;
-    std::size_t size = count * detail::sp_array_count<type, scalar>::value;
-    detail::sp_array_result<other, base> result(allocator, size);
+    detail::sp_array_result<other, base> result(allocator, count);
     base* node = result.get();
-    scalar* start = detail::sp_array_start<base, scalar>(node);
-    ::new(static_cast<void*>(node)) base(allocator, size, start);
+    element* start = detail::sp_array_start<element>(node);
+    ::new(static_cast<void*>(node)) base(allocator, start, count);
     detail::lsp_array_base& local = node->state().base();
     local.set(node);
     result.release();
-    return local_shared_ptr<T>(detail::lsp_internal_constructor_tag(),
-        reinterpret_cast<type*>(start), &local);
+    return local_shared_ptr<T>(detail::lsp_internal_constructor_tag(), start,
+        &local);
 }
 
 template<class T, class A>
@@ -94,23 +93,22 @@ inline typename enable_if_<is_bounded_array<T>::value,
     local_shared_ptr<T> >::type
 allocate_local_shared(const A& allocator)
 {
-    typedef typename remove_extent<T>::type type;
-    typedef typename detail::sp_array_scalar<T>::type scalar;
-    typedef typename detail::sp_bind_allocator<A, scalar>::type other;
     enum {
-        size = detail::sp_array_count<T, scalar>::value
+        count = extent<T>::value
     };
-    typedef detail::lsp_size_array_state<other, size> state;
+    typedef typename detail::sp_array_element<T>::type element;
+    typedef typename allocator_rebind<A, element>::type other;
+    typedef detail::lsp_size_array_state<other, count> state;
     typedef detail::sp_array_base<state> base;
-    detail::sp_array_result<other, base> result(allocator, size);
+    detail::sp_array_result<other, base> result(allocator, count);
     base* node = result.get();
-    scalar* start = detail::sp_array_start<base, scalar>(node);
-    ::new(static_cast<void*>(node)) base(allocator, size, start);
+    element* start = detail::sp_array_start<element>(node);
+    ::new(static_cast<void*>(node)) base(allocator, start, count);
     detail::lsp_array_base& local = node->state().base();
     local.set(node);
     result.release();
-    return local_shared_ptr<T>(detail::lsp_internal_constructor_tag(),
-        reinterpret_cast<type*>(start), &local);
+    return local_shared_ptr<T>(detail::lsp_internal_constructor_tag(), start,
+        &local);
 }
 
 template<class T, class A>
@@ -119,25 +117,19 @@ inline typename enable_if_<is_unbounded_array<T>::value,
 allocate_local_shared(const A& allocator, std::size_t count,
     const typename remove_extent<T>::type& value)
 {
-    typedef typename remove_extent<T>::type type;
-    typedef typename detail::sp_array_scalar<T>::type scalar;
-    typedef typename detail::sp_bind_allocator<A, scalar>::type other;
+    typedef typename detail::sp_array_element<T>::type element;
+    typedef typename allocator_rebind<A, element>::type other;
     typedef detail::lsp_array_state<other> state;
     typedef detail::sp_array_base<state> base;
-    enum {
-        total = detail::sp_array_count<type, scalar>::value
-    };
-    std::size_t size = count * total;
-    detail::sp_array_result<other, base> result(allocator, size);
+    detail::sp_array_result<other, base> result(allocator, count);
     base* node = result.get();
-    scalar* start = detail::sp_array_start<base, scalar>(node);
-    ::new(static_cast<void*>(node)) base(allocator, size,
-        reinterpret_cast<const scalar*>(&value), total, start);
+    element* start = detail::sp_array_start<element>(node);
+    ::new(static_cast<void*>(node)) base(allocator, start, count, value);
     detail::lsp_array_base& local = node->state().base();
     local.set(node);
     result.release();
-    return local_shared_ptr<T>(detail::lsp_internal_constructor_tag(),
-        reinterpret_cast<type*>(start), &local);
+    return local_shared_ptr<T>(detail::lsp_internal_constructor_tag(), start,
+        &local);
 }
 
 template<class T, class A>
@@ -146,25 +138,22 @@ inline typename enable_if_<is_bounded_array<T>::value,
 allocate_local_shared(const A& allocator,
     const typename remove_extent<T>::type& value)
 {
-    typedef typename remove_extent<T>::type type;
-    typedef typename detail::sp_array_scalar<T>::type scalar;
-    typedef typename detail::sp_bind_allocator<A, scalar>::type other;
     enum {
-        size = detail::sp_array_count<T, scalar>::value
+        count = extent<T>::value
     };
-    typedef detail::lsp_size_array_state<other, size> state;
+    typedef typename detail::sp_array_element<T>::type element;
+    typedef typename allocator_rebind<A, element>::type other;
+    typedef detail::lsp_size_array_state<other, count> state;
     typedef detail::sp_array_base<state> base;
-    detail::sp_array_result<other, base> result(allocator, size);
+    detail::sp_array_result<other, base> result(allocator, count);
     base* node = result.get();
-    scalar* start = detail::sp_array_start<base, scalar>(node);
-    ::new(static_cast<void*>(node)) base(allocator, size,
-        reinterpret_cast<const scalar*>(&value),
-        detail::sp_array_count<type, scalar>::value, start);
+    element* start = detail::sp_array_start<element>(node);
+    ::new(static_cast<void*>(node)) base(allocator, start, count, value);
     detail::lsp_array_base& local = node->state().base();
     local.set(node);
     result.release();
-    return local_shared_ptr<T>(detail::lsp_internal_constructor_tag(),
-        reinterpret_cast<type*>(start), &local);
+    return local_shared_ptr<T>(detail::lsp_internal_constructor_tag(), start,
+        &local);
 }
 
 template<class T, class A>
@@ -172,22 +161,8 @@ inline typename enable_if_<is_unbounded_array<T>::value,
     local_shared_ptr<T> >::type
 allocate_local_shared_noinit(const A& allocator, std::size_t count)
 {
-    typedef typename remove_extent<T>::type type;
-    typedef typename detail::sp_array_scalar<T>::type scalar;
-    typedef typename detail::sp_bind_allocator<A, scalar>::type other;
-    typedef detail::lsp_array_state<other> state;
-    typedef detail::sp_array_base<state, false> base;
-    std::size_t size = count * detail::sp_array_count<type, scalar>::value;
-    detail::sp_array_result<other, base> result(allocator, size);
-    base* node = result.get();
-    scalar* start = detail::sp_array_start<base, scalar>(node);
-    ::new(static_cast<void*>(node)) base(detail::sp_default(), allocator,
-        size, start);
-    detail::lsp_array_base& local = node->state().base();
-    local.set(node);
-    result.release();
-    return local_shared_ptr<T>(detail::lsp_internal_constructor_tag(),
-        reinterpret_cast<type*>(start), &local);
+    return boost::allocate_local_shared<T>(boost::noinit_adapt(allocator),
+        count);
 }
 
 template<class T, class A>
@@ -195,24 +170,7 @@ inline typename enable_if_<is_bounded_array<T>::value,
     local_shared_ptr<T> >::type
 allocate_local_shared_noinit(const A& allocator)
 {
-    typedef typename remove_extent<T>::type type;
-    typedef typename detail::sp_array_scalar<T>::type scalar;
-    typedef typename detail::sp_bind_allocator<A, scalar>::type other;
-    enum {
-        size = detail::sp_array_count<T, scalar>::value
-    };
-    typedef detail::lsp_size_array_state<other, size> state;
-    typedef detail::sp_array_base<state, false> base;
-    detail::sp_array_result<other, base> result(allocator, size);
-    base* node = result.get();
-    scalar* start = detail::sp_array_start<base, scalar>(node);
-    ::new(static_cast<void*>(node)) base(detail::sp_default(), allocator,
-        size, start);
-    detail::lsp_array_base& local = node->state().base();
-    local.set(node);
-    result.release();
-    return local_shared_ptr<T>(detail::lsp_internal_constructor_tag(),
-        reinterpret_cast<type*>(start), &local);
+    return boost::allocate_local_shared<T>(boost::noinit_adapt(allocator));
 }
 
 } /* boost */

include/boost/smart_ptr/allocate_shared_array.hpp

@@ -8,15 +8,15 @@ Distributed under the Boost Software License, Version 1.0.
 #ifndef BOOST_SMART_PTR_ALLOCATE_SHARED_ARRAY_HPP
 #define BOOST_SMART_PTR_ALLOCATE_SHARED_ARRAY_HPP
 
+#include <boost/core/allocator_access.hpp>
+#include <boost/core/alloc_construct.hpp>
+#include <boost/core/first_scalar.hpp>
 #include <boost/smart_ptr/shared_ptr.hpp>
 #include <boost/type_traits/alignment_of.hpp>
 #include <boost/type_traits/enable_if.hpp>
+#include <boost/type_traits/extent.hpp>
 #include <boost/type_traits/is_bounded_array.hpp>
 #include <boost/type_traits/is_unbounded_array.hpp>
-#include <boost/type_traits/has_trivial_assign.hpp>
-#include <boost/type_traits/has_trivial_constructor.hpp>
-#include <boost/type_traits/has_trivial_destructor.hpp>
-#include <boost/type_traits/remove_all_extents.hpp>
 #include <boost/type_traits/remove_cv.hpp>
 #include <boost/type_traits/remove_extent.hpp>
 #include <boost/type_traits/type_with_alignment.hpp>
@@ -25,15 +25,22 @@ namespace boost {
 namespace detail {
 
 template<class T>
-struct sp_array_scalar {
+struct sp_array_element {
     typedef typename boost::remove_cv<typename
-        boost::remove_all_extents<T>::type>::type type;
+        boost::remove_extent<T>::type>::type type;
 };
 
-template<class T, class U>
+template<class T>
 struct sp_array_count {
     enum {
-        value = sizeof(T) / sizeof(U)
+        value = 1
+    };
+};
+
+template<class T, std::size_t N>
+struct sp_array_count<T[N]> {
+    enum {
+        value = N * sp_array_count<T>::value
     };
 };
 
@@ -51,18 +58,6 @@ struct sp_align_up {
     };
 };
 
-#if !defined(BOOST_NO_CXX11_ALLOCATOR)
-template<class A, class T>
-struct sp_bind_allocator {
-    typedef typename std::allocator_traits<A>::template rebind_alloc<T> type;
-};
-#else
-template<class A, class T>
-struct sp_bind_allocator {
-    typedef typename A::template rebind<T>::other type;
-};
-#endif
-
 template<class T>
 BOOST_CONSTEXPR inline std::size_t
 sp_objects(std::size_t size) BOOST_SP_NOEXCEPT
@@ -70,154 +65,6 @@ sp_objects(std::size_t size) BOOST_SP_NOEXCEPT
     return (size + sizeof(T) - 1) / sizeof(T);
 }
 
-template<bool E, class A, class T>
-inline typename boost::enable_if_<!E &&
-    boost::has_trivial_destructor<T>::value>::type
-sp_array_destroy(A&, T*, std::size_t) BOOST_SP_NOEXCEPT { }
-
-template<bool E, class A, class T>
-inline typename boost::enable_if_<!E &&
-    !boost::has_trivial_destructor<T>::value>::type
-sp_array_destroy(A&, T* ptr, std::size_t size)
-{
-    while (size > 0) {
-        ptr[--size].~T();
-    }
-}
-
-#if !defined(BOOST_NO_CXX11_ALLOCATOR)
-template<bool E, class A, class T>
-inline typename boost::enable_if_<E>::type
-sp_array_destroy(A& allocator, T* ptr, std::size_t size)
-{
-    while (size > 0) {
-        std::allocator_traits<A>::destroy(allocator, ptr + --size);
-    }
-}
-#endif
-
-template<bool E, class A, class T>
-class sp_destroyer {
-public:
-    sp_destroyer(A& allocator, T* ptr) BOOST_SP_NOEXCEPT
-        : allocator_(allocator),
-          ptr_(ptr),
-          size_(0) { }
-
-    ~sp_destroyer() {
-        sp_array_destroy<E>(allocator_, ptr_, size_);
-    }
-
-    std::size_t& size() BOOST_SP_NOEXCEPT {
-        return size_;
-    }
-
-private:
-    sp_destroyer(const sp_destroyer&);
-    sp_destroyer& operator=(const sp_destroyer&);
-
-    A& allocator_;
-    T* ptr_;
-    std::size_t size_;
-};
-
-template<bool E, class A, class T>
-inline typename boost::enable_if_<!E &&
-    boost::has_trivial_constructor<T>::value &&
-    boost::has_trivial_assign<T>::value &&
-    boost::has_trivial_destructor<T>::value>::type
-sp_array_construct(A&, T* ptr, std::size_t size)
-{
-    for (std::size_t i = 0; i < size; ++i) {
-        ptr[i] = T();
-    }
-}
-
-template<bool E, class A, class T>
-inline typename boost::enable_if_<!E &&
-    boost::has_trivial_constructor<T>::value &&
-    boost::has_trivial_assign<T>::value &&
-    boost::has_trivial_destructor<T>::value>::type
-sp_array_construct(A&, T* ptr, std::size_t size, const T* list,
-    std::size_t count)
-{
-    for (std::size_t i = 0; i < size; ++i) {
-        ptr[i] = list[i % count];
-    }
-}
-
-template<bool E, class A, class T>
-inline typename boost::enable_if_<!E &&
-    !(boost::has_trivial_constructor<T>::value &&
-      boost::has_trivial_assign<T>::value &&
-      boost::has_trivial_destructor<T>::value)>::type
-sp_array_construct(A& none, T* ptr, std::size_t size)
-{
-    sp_destroyer<E, A, T> hold(none, ptr);
-    for (std::size_t& i = hold.size(); i < size; ++i) {
-        ::new(static_cast<void*>(ptr + i)) T();
-    }
-    hold.size() = 0;
-}
-
-template<bool E, class A, class T>
-inline typename boost::enable_if_<!E &&
-    !(boost::has_trivial_constructor<T>::value &&
-      boost::has_trivial_assign<T>::value &&
-      boost::has_trivial_destructor<T>::value)>::type
-sp_array_construct(A& none, T* ptr, std::size_t size, const T* list,
-    std::size_t count)
-{
-    sp_destroyer<E, A, T> hold(none, ptr);
-    for (std::size_t& i = hold.size(); i < size; ++i) {
-        ::new(static_cast<void*>(ptr + i)) T(list[i % count]);
-    }
-    hold.size() = 0;
-}
-
-#if !defined(BOOST_NO_CXX11_ALLOCATOR)
-template<bool E, class A, class T>
-inline typename boost::enable_if_<E>::type
-sp_array_construct(A& allocator, T* ptr, std::size_t size)
-{
-    sp_destroyer<E, A, T> hold(allocator, ptr);
-    for (std::size_t& i = hold.size(); i < size; ++i) {
-        std::allocator_traits<A>::construct(allocator, ptr + i);
-    }
-    hold.size() = 0;
-}
-
-template<bool E, class A, class T>
-inline typename boost::enable_if_<E>::type
-sp_array_construct(A& allocator, T* ptr, std::size_t size, const T* list,
-    std::size_t count)
-{
-    sp_destroyer<E, A, T> hold(allocator, ptr);
-    for (std::size_t& i = hold.size(); i < size; ++i) {
-        std::allocator_traits<A>::construct(allocator, ptr + i,
-            list[i % count]);
-    }
-    hold.size() = 0;
-}
-#endif
-
-template<class A, class T>
-inline typename
-    boost::enable_if_<boost::has_trivial_constructor<T>::value>::type
-sp_array_default(A&, T*, std::size_t) BOOST_SP_NOEXCEPT { }
-
-template<class A, class T>
-inline typename
-    boost::enable_if_<!boost::has_trivial_constructor<T>::value>::type
-sp_array_default(A& none, T* ptr, std::size_t size)
-{
-    sp_destroyer<false, A, T> hold(none, ptr);
-    for (std::size_t& i = hold.size(); i < size; ++i) {
-        ::new(static_cast<void*>(ptr + i)) T;
-    }
-    hold.size() = 0;
-}
-
 template<class A>
 class sp_array_state {
 public:
@@ -262,29 +109,6 @@ private:
     A allocator_;
 };
 
-#if !defined(BOOST_NO_CXX11_ALLOCATOR)
-template<class A>
-struct sp_use_construct {
-    enum {
-        value = true
-    };
-};
-
-template<class T>
-struct sp_use_construct<std::allocator<T> > {
-    enum {
-        value = false
-    };
-};
-#else
-template<class>
-struct sp_use_construct {
-    enum {
-        value = false
-    };
-};
-#endif
-
 template<class T, class U>
 struct sp_array_alignment {
     enum {
@@ -300,39 +124,32 @@ struct sp_array_offset {
     };
 };
 
-template<class T, class U>
-struct sp_array_storage {
-    enum {
-        value = sp_array_alignment<T, U>::value
-    };
-    typedef typename boost::type_with_alignment<value>::type type;
-};
-
-template<class T, class U>
+template<class U, class T>
 inline U*
-sp_array_start(void* base) BOOST_SP_NOEXCEPT
+sp_array_start(T* base) BOOST_SP_NOEXCEPT
 {
     enum {
         size = sp_array_offset<T, U>::value
     };
-    return reinterpret_cast<U*>(static_cast<char*>(base) + size);
+    return reinterpret_cast<U*>(reinterpret_cast<char*>(base) + size);
 }
 
 template<class A, class T>
 class sp_array_creator {
-    typedef typename A::value_type scalar;
+    typedef typename A::value_type element;
 
     enum {
-        offset = sp_array_offset<T, scalar>::value
+        offset = sp_array_offset<T, element>::value
     };
 
-    typedef typename sp_array_storage<T, scalar>::type type;
+    typedef typename boost::type_with_alignment<sp_array_alignment<T,
+        element>::value>::type type;
 
 public:
     template<class U>
     sp_array_creator(const U& other, std::size_t size) BOOST_SP_NOEXCEPT
         : other_(other),
-          size_(sp_objects<type>(offset + sizeof(scalar) * size)) { }
+          size_(sp_objects<type>(offset + sizeof(element) * size)) { }
 
     T* create() {
         return reinterpret_cast<T*>(other_.allocate(size_));
@@ -343,13 +160,11 @@ public:
     }
 
 private:
-    typename sp_bind_allocator<A, type>::type other_;
+    typename boost::allocator_rebind<A, type>::type other_;
     std::size_t size_;
 };
 
-struct sp_default { };
-
-template<class T, bool E = sp_use_construct<T>::value>
+template<class T>
 class BOOST_SYMBOL_VISIBLE sp_array_base
     : public sp_counted_base {
     typedef typename T::type allocator;
@@ -358,50 +173,51 @@ public:
     typedef typename allocator::value_type type;
 
     template<class A>
-    sp_array_base(const A& other, std::size_t size, type* start)
+    sp_array_base(const A& other, type* start, std::size_t size)
         : state_(other, size) {
-        sp_array_construct<E>(state_.allocator(), start, state_.size());
+        boost::alloc_construct_n(state_.allocator(),
+            boost::first_scalar(start),
+            state_.size() * sp_array_count<type>::value);
     }
 
-    template<class A>
-    sp_array_base(const A& other, std::size_t size, const type* list,
-        std::size_t count, type* start)
+    template<class A, class U>
+    sp_array_base(const A& other, type* start, std::size_t size, const U& list)
         : state_(other, size) {
-        sp_array_construct<E>(state_.allocator(), start, state_.size(), list,
-            count);
-    }
-
-    template<class A>
-    sp_array_base(sp_default, const A& other, std::size_t size, type* start)
-        : state_(other, size) {
-        sp_array_default(state_.allocator(), start, state_.size());
+        enum {
+            count = sp_array_count<type>::value
+        };
+        boost::alloc_construct_n(state_.allocator(),
+            boost::first_scalar(start), state_.size() * count,
+            boost::first_scalar(&list), count);
     }
 
     T& state() BOOST_SP_NOEXCEPT {
         return state_;
     }
 
-    virtual void dispose() BOOST_SP_NOEXCEPT {
-        sp_array_destroy<E>(state_.allocator(),
-            sp_array_start<sp_array_base, type>(this), state_.size());
+    void dispose() BOOST_SP_NOEXCEPT BOOST_OVERRIDE {
+        boost::alloc_destroy_n(state_.allocator(),
+            boost::first_scalar(sp_array_start<type>(this)),
+            state_.size() * sp_array_count<type>::value);
     }
 
-    virtual void destroy() BOOST_SP_NOEXCEPT {
+    void destroy() BOOST_SP_NOEXCEPT BOOST_OVERRIDE {
         sp_array_creator<allocator, sp_array_base> other(state_.allocator(),
             state_.size());
         this->~sp_array_base();
         other.destroy(this);
     }
 
-    virtual void* get_deleter(const sp_typeinfo&) BOOST_SP_NOEXCEPT {
+    void* get_deleter(const sp_typeinfo_&) BOOST_SP_NOEXCEPT BOOST_OVERRIDE {
         return 0;
     }
 
-    virtual void* get_local_deleter(const sp_typeinfo&) BOOST_SP_NOEXCEPT {
+    void* get_local_deleter(const sp_typeinfo_&)
+        BOOST_SP_NOEXCEPT BOOST_OVERRIDE {
         return 0;
     }
 
-    virtual void* get_untyped_deleter() BOOST_SP_NOEXCEPT {
+    void* get_untyped_deleter() BOOST_SP_NOEXCEPT BOOST_OVERRIDE {
         return 0;
     }
 
@@ -423,11 +239,11 @@ public:
         }
     }
 
-    T* get() const {
+    T* get() const BOOST_SP_NOEXCEPT {
         return result_;
     }
 
-    void release() {
+    void release() BOOST_SP_NOEXCEPT {
         result_ = 0;
     }
 
@@ -445,40 +261,37 @@ template<class T, class A>
 inline typename enable_if_<is_unbounded_array<T>::value, shared_ptr<T> >::type
 allocate_shared(const A& allocator, std::size_t count)
 {
-    typedef typename remove_extent<T>::type type;
-    typedef typename detail::sp_array_scalar<T>::type scalar;
-    typedef typename detail::sp_bind_allocator<A, scalar>::type other;
+    typedef typename detail::sp_array_element<T>::type element;
+    typedef typename allocator_rebind<A, element>::type other;
     typedef detail::sp_array_state<other> state;
     typedef detail::sp_array_base<state> base;
-    std::size_t size = count * detail::sp_array_count<type, scalar>::value;
-    detail::sp_array_result<other, base> result(allocator, size);
-    detail::sp_counted_base* node = result.get();
-    scalar* start = detail::sp_array_start<base, scalar>(node);
-    ::new(static_cast<void*>(node)) base(allocator, size, start);
+    detail::sp_array_result<other, base> result(allocator, count);
+    base* node = result.get();
+    element* start = detail::sp_array_start<element>(node);
+    ::new(static_cast<void*>(node)) base(allocator, start, count);
     result.release();
-    return shared_ptr<T>(detail::sp_internal_constructor_tag(),
-        reinterpret_cast<type*>(start), detail::shared_count(node));
+    return shared_ptr<T>(detail::sp_internal_constructor_tag(), start,
+        detail::shared_count(static_cast<detail::sp_counted_base*>(node)));
 }
 
 template<class T, class A>
 inline typename enable_if_<is_bounded_array<T>::value, shared_ptr<T> >::type
 allocate_shared(const A& allocator)
 {
-    typedef typename remove_extent<T>::type type;
-    typedef typename detail::sp_array_scalar<T>::type scalar;
-    typedef typename detail::sp_bind_allocator<A, scalar>::type other;
     enum {
-        size = detail::sp_array_count<T, scalar>::value
+        count = extent<T>::value
     };
-    typedef detail::sp_size_array_state<other, size> state;
+    typedef typename detail::sp_array_element<T>::type element;
+    typedef typename allocator_rebind<A, element>::type other;
+    typedef detail::sp_size_array_state<other, extent<T>::value> state;
     typedef detail::sp_array_base<state> base;
-    detail::sp_array_result<other, base> result(allocator, size);
-    detail::sp_counted_base* node = result.get();
-    scalar* start = detail::sp_array_start<base, scalar>(node);
-    ::new(static_cast<void*>(node)) base(allocator, size, start);
+    detail::sp_array_result<other, base> result(allocator, count);
+    base* node = result.get();
+    element* start = detail::sp_array_start<element>(node);
+    ::new(static_cast<void*>(node)) base(allocator, start, count);
     result.release();
-    return shared_ptr<T>(detail::sp_internal_constructor_tag(),
-        reinterpret_cast<type*>(start), detail::shared_count(node));
+    return shared_ptr<T>(detail::sp_internal_constructor_tag(), start,
+        detail::shared_count(static_cast<detail::sp_counted_base*>(node)));
 }
 
 template<class T, class A>
@@ -486,23 +299,17 @@ inline typename enable_if_<is_unbounded_array<T>::value, shared_ptr<T> >::type
 allocate_shared(const A& allocator, std::size_t count,
     const typename remove_extent<T>::type& value)
 {
-    typedef typename remove_extent<T>::type type;
-    typedef typename detail::sp_array_scalar<T>::type scalar;
-    typedef typename detail::sp_bind_allocator<A, scalar>::type other;
+    typedef typename detail::sp_array_element<T>::type element;
+    typedef typename allocator_rebind<A, element>::type other;
     typedef detail::sp_array_state<other> state;
     typedef detail::sp_array_base<state> base;
-    enum {
-        total = detail::sp_array_count<type, scalar>::value
-    };
-    std::size_t size = count * total;
-    detail::sp_array_result<other, base> result(allocator, size);
-    detail::sp_counted_base* node = result.get();
-    scalar* start = detail::sp_array_start<base, scalar>(node);
-    ::new(static_cast<void*>(node)) base(allocator, size,
-        reinterpret_cast<const scalar*>(&value), total, start);
+    detail::sp_array_result<other, base> result(allocator, count);
+    base* node = result.get();
+    element* start = detail::sp_array_start<element>(node);
+    ::new(static_cast<void*>(node)) base(allocator, start, count, value);
     result.release();
-    return shared_ptr<T>(detail::sp_internal_constructor_tag(),
-        reinterpret_cast<type*>(start), detail::shared_count(node));
+    return shared_ptr<T>(detail::sp_internal_constructor_tag(), start,
+        detail::shared_count(static_cast<detail::sp_counted_base*>(node)));
 }
 
 template<class T, class A>
@@ -510,65 +317,34 @@ inline typename enable_if_<is_bounded_array<T>::value, shared_ptr<T> >::type
 allocate_shared(const A& allocator,
     const typename remove_extent<T>::type& value)
 {
-    typedef typename remove_extent<T>::type type;
-    typedef typename detail::sp_array_scalar<T>::type scalar;
-    typedef typename detail::sp_bind_allocator<A, scalar>::type other;
     enum {
-        size = detail::sp_array_count<T, scalar>::value
+        count = extent<T>::value
     };
-    typedef detail::sp_size_array_state<other, size> state;
+    typedef typename detail::sp_array_element<T>::type element;
+    typedef typename allocator_rebind<A, element>::type other;
+    typedef detail::sp_size_array_state<other, extent<T>::value> state;
     typedef detail::sp_array_base<state> base;
-    detail::sp_array_result<other, base> result(allocator, size);
-    detail::sp_counted_base* node = result.get();
-    scalar* start = detail::sp_array_start<base, scalar>(node);
-    ::new(static_cast<void*>(node)) base(allocator, size,
-        reinterpret_cast<const scalar*>(&value),
-        detail::sp_array_count<type, scalar>::value, start);
+    detail::sp_array_result<other, base> result(allocator, count);
+    base* node = result.get();
+    element* start = detail::sp_array_start<element>(node);
+    ::new(static_cast<void*>(node)) base(allocator, start, count, value);
     result.release();
-    return shared_ptr<T>(detail::sp_internal_constructor_tag(),
-        reinterpret_cast<type*>(start), detail::shared_count(node));
+    return shared_ptr<T>(detail::sp_internal_constructor_tag(), start,
+        detail::shared_count(static_cast<detail::sp_counted_base*>(node)));
 }
 
 template<class T, class A>
 inline typename enable_if_<is_unbounded_array<T>::value, shared_ptr<T> >::type
 allocate_shared_noinit(const A& allocator, std::size_t count)
 {
-    typedef typename remove_extent<T>::type type;
-    typedef typename detail::sp_array_scalar<T>::type scalar;
-    typedef typename detail::sp_bind_allocator<A, scalar>::type other;
-    typedef detail::sp_array_state<other> state;
-    typedef detail::sp_array_base<state, false> base;
-    std::size_t size = count * detail::sp_array_count<type, scalar>::value;
-    detail::sp_array_result<other, base> result(allocator, size);
-    detail::sp_counted_base* node = result.get();
-    scalar* start = detail::sp_array_start<base, scalar>(node);
-    ::new(static_cast<void*>(node)) base(detail::sp_default(), allocator,
-        size, start);
-    result.release();
-    return shared_ptr<T>(detail::sp_internal_constructor_tag(),
-        reinterpret_cast<type*>(start), detail::shared_count(node));
+    return boost::allocate_shared<T>(boost::noinit_adapt(allocator), count);
 }
 
 template<class T, class A>
 inline typename enable_if_<is_bounded_array<T>::value, shared_ptr<T> >::type
 allocate_shared_noinit(const A& allocator)
 {
-    typedef typename remove_extent<T>::type type;
-    typedef typename detail::sp_array_scalar<T>::type scalar;
-    typedef typename detail::sp_bind_allocator<A, scalar>::type other;
-    enum {
-        size = detail::sp_array_count<T, scalar>::value
-    };
-    typedef detail::sp_size_array_state<other, size> state;
-    typedef detail::sp_array_base<state, false> base;
-    detail::sp_array_result<other, base> result(allocator, size);
-    detail::sp_counted_base* node = result.get();
-    scalar* start = detail::sp_array_start<base, scalar>(node);
-    ::new(static_cast<void*>(node)) base(detail::sp_default(), allocator,
-        size, start);
-    result.release();
-    return shared_ptr<T>(detail::sp_internal_constructor_tag(),
-        reinterpret_cast<type*>(start), detail::shared_count(node));
+    return boost::allocate_shared<T>(boost::noinit_adapt(allocator));
 }
 
 } /* boost */

include/boost/smart_ptr/allocate_unique.hpp

@@ -0,0 +1,482 @@
+/*
+Copyright 2019 Glen Joseph Fernandes
+(glenjofe@gmail.com)
+
+Distributed under the Boost Software License, Version 1.0.
+(http://www.boost.org/LICENSE_1_0.txt)
+*/
+#ifndef BOOST_SMART_PTR_ALLOCATE_UNIQUE_HPP
+#define BOOST_SMART_PTR_ALLOCATE_UNIQUE_HPP
+
+#include <boost/smart_ptr/detail/sp_noexcept.hpp>
+#include <boost/smart_ptr/detail/sp_nullptr_t.hpp>
+#include <boost/core/allocator_access.hpp>
+#include <boost/core/alloc_construct.hpp>
+#include <boost/core/empty_value.hpp>
+#include <boost/core/first_scalar.hpp>
+#include <boost/core/noinit_adaptor.hpp>
+#include <boost/core/pointer_traits.hpp>
+#include <boost/type_traits/enable_if.hpp>
+#include <boost/type_traits/extent.hpp>
+#include <boost/type_traits/is_array.hpp>
+#include <boost/type_traits/is_bounded_array.hpp>
+#include <boost/type_traits/is_unbounded_array.hpp>
+#include <boost/type_traits/remove_cv.hpp>
+#include <boost/type_traits/remove_extent.hpp>
+#include <boost/type_traits/type_identity.hpp>
+#include <boost/config.hpp>
+#include <memory>
+#include <utility>
+
+namespace boost {
+namespace detail {
+
+template<class T>
+struct sp_alloc_size {
+    BOOST_STATIC_CONSTEXPR std::size_t value = 1;
+};
+
+template<class T>
+struct sp_alloc_size<T[]> {
+    BOOST_STATIC_CONSTEXPR std::size_t value = sp_alloc_size<T>::value;
+};
+
+template<class T, std::size_t N>
+struct sp_alloc_size<T[N]> {
+    BOOST_STATIC_CONSTEXPR std::size_t value = N * sp_alloc_size<T>::value;
+};
+
+template<class T>
+struct sp_alloc_result {
+    typedef T type;
+};
+
+template<class T, std::size_t N>
+struct sp_alloc_result<T[N]> {
+    typedef T type[];
+};
+
+template<class T>
+struct sp_alloc_value {
+    typedef typename boost::remove_cv<typename
+        boost::remove_extent<T>::type>::type type;
+};
+
+template<class T, class P>
+class sp_alloc_ptr {
+public:
+    typedef T element_type;
+
+    sp_alloc_ptr() BOOST_SP_NOEXCEPT
+        : p_() { }
+
+#if defined(BOOST_MSVC) && BOOST_MSVC == 1600
+    sp_alloc_ptr(T* p) BOOST_SP_NOEXCEPT
+        : p_(const_cast<typename boost::remove_cv<T>::type*>(p)) { }
+#endif
+
+    sp_alloc_ptr(std::size_t, P p) BOOST_SP_NOEXCEPT
+        : p_(p) { }
+
+#if !defined(BOOST_NO_CXX11_NULLPTR)
+    sp_alloc_ptr(detail::sp_nullptr_t) BOOST_SP_NOEXCEPT
+        : p_() { }
+#endif
+
+    T& operator*() const {
+        return *p_;
+    }
+
+    T* operator->() const BOOST_SP_NOEXCEPT {
+        return boost::to_address(p_);
+    }
+
+#if !defined(BOOST_NO_CXX11_EXPLICIT_CONVERSION_OPERATORS)
+    explicit operator bool() const BOOST_SP_NOEXCEPT {
+        return !!p_;
+    }
+#endif
+
+    bool operator!() const BOOST_SP_NOEXCEPT {
+        return !p_;
+    }
+
+    P ptr() const BOOST_SP_NOEXCEPT {
+        return p_;
+    }
+
+    BOOST_STATIC_CONSTEXPR std::size_t size() BOOST_SP_NOEXCEPT {
+        return 1;
+    }
+
+#if defined(BOOST_MSVC) && BOOST_MSVC < 1910
+    static sp_alloc_ptr pointer_to(T& v) {
+        return sp_alloc_ptr(1,
+            std::pointer_traits<P>::pointer_to(const_cast<typename
+                boost::remove_cv<T>::type&>(v)));
+    }
+#endif
+
+private:
+    P p_;
+};
+
+template<class T, class P>
+class sp_alloc_ptr<T[], P> {
+public:
+    typedef T element_type;
+
+    sp_alloc_ptr() BOOST_SP_NOEXCEPT
+        : p_() { }
+
+    sp_alloc_ptr(std::size_t n, P p) BOOST_SP_NOEXCEPT
+        : p_(p)
+        , n_(n) { }
+
+#if !defined(BOOST_NO_CXX11_NULLPTR)
+    sp_alloc_ptr(detail::sp_nullptr_t) BOOST_SP_NOEXCEPT
+        : p_() { }
+#endif
+
+    T& operator[](std::size_t i) const {
+        return p_[i];
+    }
+
+#if !defined(BOOST_NO_CXX11_EXPLICIT_CONVERSION_OPERATORS)
+    explicit operator bool() const BOOST_SP_NOEXCEPT {
+        return !!p_;
+    }
+#endif
+
+    bool operator!() const BOOST_SP_NOEXCEPT {
+        return !p_;
+    }
+
+    P ptr() const BOOST_SP_NOEXCEPT {
+        return p_;
+    }
+
+    std::size_t size() const BOOST_SP_NOEXCEPT {
+        return n_;
+    }
+
+#if defined(BOOST_MSVC) && BOOST_MSVC < 1910
+    static sp_alloc_ptr pointer_to(T& v) {
+        return sp_alloc_ptr(n_,
+            std::pointer_traits<P>::pointer_to(const_cast<typename
+                boost::remove_cv<T>::type&>(v)));
+    }
+#endif
+
+private:
+    P p_;
+    std::size_t n_;
+};
+
+template<class T, std::size_t N, class P>
+class sp_alloc_ptr<T[N], P> {
+public:
+    typedef T element_type;
+
+    sp_alloc_ptr() BOOST_SP_NOEXCEPT
+        : p_() { }
+
+    sp_alloc_ptr(std::size_t, P p) BOOST_SP_NOEXCEPT
+        : p_(p) { }
+
+#if !defined(BOOST_NO_CXX11_NULLPTR)
+    sp_alloc_ptr(detail::sp_nullptr_t) BOOST_SP_NOEXCEPT
+        : p_() { }
+#endif
+
+    T& operator[](std::size_t i) const {
+        return p_[i];
+    }
+
+#if !defined(BOOST_NO_CXX11_EXPLICIT_CONVERSION_OPERATORS)
+    explicit operator bool() const BOOST_SP_NOEXCEPT {
+        return !!p_;
+    }
+#endif
+
+    bool operator!() const BOOST_SP_NOEXCEPT {
+        return !p_;
+    }
+
+    P ptr() const BOOST_SP_NOEXCEPT {
+        return p_;
+    }
+
+    BOOST_STATIC_CONSTEXPR std::size_t size() BOOST_SP_NOEXCEPT {
+        return N;
+    }
+
+#if defined(BOOST_MSVC) && BOOST_MSVC < 1910
+    static sp_alloc_ptr pointer_to(T& v) {
+        return sp_alloc_ptr(N,
+            std::pointer_traits<P>::pointer_to(const_cast<typename
+                boost::remove_cv<T>::type&>(v)));
+    }
+#endif
+
+private:
+    P p_;
+};
+
+template<class T, class P>
+inline bool
+operator==(const sp_alloc_ptr<T, P>& lhs, const sp_alloc_ptr<T, P>& rhs)
+{
+    return lhs.ptr() == rhs.ptr();
+}
+
+template<class T, class P>
+inline bool
+operator!=(const sp_alloc_ptr<T, P>& lhs, const sp_alloc_ptr<T, P>& rhs)
+{
+    return !(lhs == rhs);
+}
+
+#if !defined(BOOST_NO_CXX11_NULLPTR)
+template<class T, class P>
+inline bool
+operator==(const sp_alloc_ptr<T, P>& lhs,
+    detail::sp_nullptr_t) BOOST_SP_NOEXCEPT
+{
+    return !lhs.ptr();
+}
+
+template<class T, class P>
+inline bool
+operator==(detail::sp_nullptr_t,
+    const sp_alloc_ptr<T, P>& rhs) BOOST_SP_NOEXCEPT
+{
+    return !rhs.ptr();
+}
+
+template<class T, class P>
+inline bool
+operator!=(const sp_alloc_ptr<T, P>& lhs,
+    detail::sp_nullptr_t) BOOST_SP_NOEXCEPT
+{
+    return !!lhs.ptr();
+}
+
+template<class T, class P>
+inline bool
+operator!=(detail::sp_nullptr_t,
+    const sp_alloc_ptr<T, P>& rhs) BOOST_SP_NOEXCEPT
+{
+    return !!rhs.ptr();
+}
+#endif
+
+template<class A>
+inline void
+sp_alloc_clear(A& a, typename boost::allocator_pointer<A>::type p, std::size_t,
+    boost::false_type)
+{
+    boost::alloc_destroy(a, boost::to_address(p));
+}
+
+template<class A>
+inline void
+sp_alloc_clear(A& a, typename boost::allocator_pointer<A>::type p,
+    std::size_t n, boost::true_type)
+{
+#if defined(BOOST_MSVC) && BOOST_MSVC < 1800
+    if (!p) {
+        return;
+    }
+#endif
+    boost::alloc_destroy_n(a, boost::first_scalar(boost::to_address(p)),
+        n * sp_alloc_size<typename A::value_type>::value);
+}
+
+} /* detail */
+
+template<class T, class A>
+class alloc_deleter
+    : empty_value<typename allocator_rebind<A,
+        typename detail::sp_alloc_value<T>::type>::type> {
+    typedef typename allocator_rebind<A,
+        typename detail::sp_alloc_value<T>::type>::type allocator;
+    typedef empty_value<allocator> base;
+
+public:
+    typedef detail::sp_alloc_ptr<T,
+        typename allocator_pointer<allocator>::type> pointer;
+
+    explicit alloc_deleter(const allocator& a) BOOST_SP_NOEXCEPT
+        : base(empty_init_t(), a) { }
+
+    void operator()(pointer p) {
+        detail::sp_alloc_clear(base::get(), p.ptr(), p.size(), is_array<T>());
+        base::get().deallocate(p.ptr(), p.size());
+    }
+};
+
+#if !defined(BOOST_NO_CXX11_TEMPLATE_ALIASES)
+template<class T, class A>
+using alloc_noinit_deleter = alloc_deleter<T, noinit_adaptor<A> >;
+#endif
+
+namespace detail {
+
+template<class T, class A>
+class sp_alloc_make {
+public:
+    typedef typename boost::allocator_rebind<A,
+        typename sp_alloc_value<T>::type>::type allocator;
+
+private:
+    typedef boost::alloc_deleter<T, A> deleter;
+
+public:
+    typedef std::unique_ptr<typename sp_alloc_result<T>::type, deleter> type;
+
+    sp_alloc_make(const A& a, std::size_t n)
+        : a_(a)
+        , n_(n)
+        , p_(a_.allocate(n)) { }
+
+    ~sp_alloc_make() {
+        if (p_) {
+            a_.deallocate(p_, n_);
+        }
+    }
+
+    typename allocator::value_type* get() const BOOST_SP_NOEXCEPT {
+        return boost::to_address(p_);
+    }
+
+    allocator& state() BOOST_SP_NOEXCEPT {
+        return a_;
+    }
+
+    type release() BOOST_SP_NOEXCEPT {
+        pointer p = p_;
+        p_ = pointer();
+        return type(typename deleter::pointer(n_, p), deleter(a_));
+    }
+
+private:
+    typedef typename boost::allocator_pointer<allocator>::type pointer;
+
+    allocator a_;
+    std::size_t n_;
+    pointer p_;
+};
+
+} /* detail */
+
+template<class T, class A>
+inline typename enable_if_<!is_array<T>::value,
+    std::unique_ptr<T, alloc_deleter<T, A> > >::type
+allocate_unique(const A& alloc)
+{
+    detail::sp_alloc_make<T, A> c(alloc, 1);
+    boost::alloc_construct(c.state(), c.get());
+    return c.release();
+}
+
+#if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)
+template<class T, class A, class... Args>
+inline typename enable_if_<!is_array<T>::value,
+    std::unique_ptr<T, alloc_deleter<T, A> > >::type
+allocate_unique(const A& alloc, Args&&... args)
+{
+    detail::sp_alloc_make<T, A> c(alloc, 1);
+    boost::alloc_construct(c.state(), c.get(), std::forward<Args>(args)...);
+    return c.release();
+}
+#endif
+
+template<class T, class A>
+inline typename enable_if_<!is_array<T>::value,
+    std::unique_ptr<T, alloc_deleter<T, A> > >::type
+allocate_unique(const A& alloc, typename type_identity<T>::type&& value)
+{
+    detail::sp_alloc_make<T, A> c(alloc, 1);
+    boost::alloc_construct(c.state(), c.get(), std::move(value));
+    return c.release();
+}
+
+template<class T, class A>
+inline typename enable_if_<!is_array<T>::value,
+    std::unique_ptr<T, alloc_deleter<T, noinit_adaptor<A> > > >::type
+allocate_unique_noinit(const A& alloc)
+{
+    return boost::allocate_unique<T, noinit_adaptor<A> >(alloc);
+}
+
+template<class T, class A>
+inline typename enable_if_<is_unbounded_array<T>::value,
+    std::unique_ptr<T, alloc_deleter<T, A> > >::type
+allocate_unique(const A& alloc, std::size_t size)
+{
+    detail::sp_alloc_make<T, A> c(alloc, size);
+    boost::alloc_construct_n(c.state(), boost::first_scalar(c.get()),
+        size * detail::sp_alloc_size<T>::value);
+    return c.release();
+}
+
+template<class T, class A>
+inline typename enable_if_<is_bounded_array<T>::value,
+    std::unique_ptr<typename detail::sp_alloc_result<T>::type,
+        alloc_deleter<T, A> > >::type
+allocate_unique(const A& alloc)
+{
+    detail::sp_alloc_make<T, A> c(alloc, extent<T>::value);
+    boost::alloc_construct_n(c.state(), boost::first_scalar(c.get()),
+        detail::sp_alloc_size<T>::value);
+    return c.release();
+}
+
+template<class T, class A>
+inline typename enable_if_<is_unbounded_array<T>::value,
+    std::unique_ptr<T, alloc_deleter<T, noinit_adaptor<A> > > >::type
+allocate_unique_noinit(const A& alloc, std::size_t size)
+{
+    return boost::allocate_unique<T, noinit_adaptor<A> >(alloc, size);
+}
+
+template<class T, class A>
+inline typename enable_if_<is_bounded_array<T>::value,
+    std::unique_ptr<typename detail::sp_alloc_result<T>::type,
+        alloc_deleter<T, noinit_adaptor<A> > > >::type
+allocate_unique_noinit(const A& alloc)
+{
+    return boost::allocate_unique<T, noinit_adaptor<A> >(alloc);
+}
+
+template<class T, class A>
+inline typename enable_if_<is_unbounded_array<T>::value,
+    std::unique_ptr<T, alloc_deleter<T, A> > >::type
+allocate_unique(const A& alloc, std::size_t size,
+    const typename remove_extent<T>::type& value)
+{
+    detail::sp_alloc_make<T, A> c(alloc, size);
+    boost::alloc_construct_n(c.state(), boost::first_scalar(c.get()),
+        size * detail::sp_alloc_size<T>::value, boost::first_scalar(&value),
+        detail::sp_alloc_size<typename remove_extent<T>::type>::value);
+    return c.release();
+}
+
+template<class T, class A>
+inline typename enable_if_<is_bounded_array<T>::value,
+    std::unique_ptr<typename detail::sp_alloc_result<T>::type,
+        alloc_deleter<T, A> > >::type
+allocate_unique(const A& alloc,
+    const typename remove_extent<T>::type& value)
+{
+    detail::sp_alloc_make<T, A> c(alloc, extent<T>::value);
+    boost::alloc_construct_n(c.state(), boost::first_scalar(c.get()),
+        detail::sp_alloc_size<T>::value, boost::first_scalar(&value),
+        detail::sp_alloc_size<typename remove_extent<T>::type>::value);
+    return c.release();
+}
+
+} /* boost */
+
+#endif

include/boost/smart_ptr/atomic_shared_ptr.hpp

@@ -63,6 +63,11 @@ public:
     {
     }
 
+    atomic_shared_ptr( shared_ptr<T> p ) BOOST_SP_NOEXCEPT
+        : p_( std::move( p ) ), l_ BOOST_DETAIL_SPINLOCK_INIT
+    {
+    }
+
 #else
 
     atomic_shared_ptr() BOOST_SP_NOEXCEPT
@@ -71,8 +76,6 @@ public:
         std::memcpy( &l_, &init, sizeof( init ) );
     }
 
-#endif
-
     atomic_shared_ptr( shared_ptr<T> p ) BOOST_SP_NOEXCEPT
 #if !defined( BOOST_NO_CXX11_RVALUE_REFERENCES )
         : p_( std::move( p ) )
@@ -84,6 +87,8 @@ public:
         std::memcpy( &l_, &init, sizeof( init ) );
     }
 
+#endif
+
     atomic_shared_ptr& operator=( shared_ptr<T> r ) BOOST_SP_NOEXCEPT
     {
         boost::detail::spinlock::scoped_lock lock( l_ );

include/boost/smart_ptr/bad_weak_ptr.hpp

@@ -20,7 +20,7 @@
 #include <boost/config.hpp>
 #include <exception>
 
-#ifdef __BORLANDC__
+#ifdef BOOST_BORLANDC
 # pragma warn -8026     // Functions with excep. spec. are not expanded inline
 #endif
 
@@ -33,7 +33,7 @@ namespace boost
 // is compiled with -ps, the compiler issues an error.
 // Hence, the temporary #pragma option -pc below.
 
-#if defined(__BORLANDC__) && __BORLANDC__ <= 0x564
+#if defined(BOOST_BORLANDC) && BOOST_BORLANDC <= 0x564
 # pragma option push -pc
 #endif
 
@@ -47,7 +47,7 @@ class bad_weak_ptr: public std::exception
 {
 public:
 
-    virtual char const * what() const BOOST_NOEXCEPT_OR_NOTHROW
+    char const * what() const BOOST_NOEXCEPT_OR_NOTHROW BOOST_OVERRIDE
     {
         return "tr1::bad_weak_ptr";
     }
@@ -57,13 +57,13 @@ public:
 # pragma clang diagnostic pop
 #endif
 
-#if defined(__BORLANDC__) && __BORLANDC__ <= 0x564
+#if defined(BOOST_BORLANDC) && BOOST_BORLANDC <= 0x564
 # pragma option pop
 #endif
 
 } // namespace boost
 
-#ifdef __BORLANDC__
+#ifdef BOOST_BORLANDC
 # pragma warn .8026     // Functions with excep. spec. are not expanded inline
 #endif
 

include/boost/smart_ptr/detail/atomic_count_gcc.hpp

@@ -23,6 +23,13 @@
 # include <bits/atomicity.h>
 #endif
 
+#if defined(BOOST_SP_REPORT_IMPLEMENTATION)
+
+#include <boost/config/pragma_message.hpp>
+BOOST_PRAGMA_MESSAGE("Using libstdc++ atomic_count")
+
+#endif
+
 namespace boost
 {
 

include/boost/smart_ptr/detail/atomic_count_gcc_x86.hpp

@@ -13,6 +13,13 @@
 //  http://www.boost.org/LICENSE_1_0.txt)
 //
 
+#if defined(BOOST_SP_REPORT_IMPLEMENTATION)
+
+#include <boost/config/pragma_message.hpp>
+BOOST_PRAGMA_MESSAGE("Using g++/x86 atomic_count")
+
+#endif
+
 namespace boost
 {
 

include/boost/smart_ptr/detail/atomic_count_nt.hpp

@@ -15,6 +15,13 @@
 //  http://www.boost.org/LICENSE_1_0.txt
 //
 
+#if defined(BOOST_SP_REPORT_IMPLEMENTATION)
+
+#include <boost/config/pragma_message.hpp>
+BOOST_PRAGMA_MESSAGE("Using single-threaded, non-atomic atomic_count")
+
+#endif
+
 namespace boost
 {
 

include/boost/smart_ptr/detail/atomic_count_pt.hpp

@@ -14,6 +14,13 @@
 #include <boost/assert.hpp>
 #include <pthread.h>
 
+#if defined(BOOST_SP_REPORT_IMPLEMENTATION)
+
+#include <boost/config/pragma_message.hpp>
+BOOST_PRAGMA_MESSAGE("Using pthread_mutex atomic_count")
+
+#endif
+
 //
 //  The generic pthread_mutex-based implementation sometimes leads to
 //    inefficiencies. Example: a class with two atomic_count members

include/boost/smart_ptr/detail/atomic_count_solaris.hpp

@@ -15,6 +15,13 @@
 
 #include <atomic.h>
 
+#if defined(BOOST_SP_REPORT_IMPLEMENTATION)
+
+#include <boost/config/pragma_message.hpp>
+BOOST_PRAGMA_MESSAGE("Using Solaris atomic_count")
+
+#endif
+
 namespace boost
 {
 

include/boost/smart_ptr/detail/atomic_count_spin.hpp

@@ -13,6 +13,13 @@
 
 #include <boost/smart_ptr/detail/spinlock_pool.hpp>
 
+#if defined(BOOST_SP_REPORT_IMPLEMENTATION)
+
+#include <boost/config/pragma_message.hpp>
+BOOST_PRAGMA_MESSAGE("Using spinlock-based atomic_count")
+
+#endif
+
 namespace boost
 {
 

include/boost/smart_ptr/detail/atomic_count_std_atomic.hpp

@@ -16,6 +16,13 @@
 #include <atomic>
 #include <cstdint>
 
+#if defined(BOOST_SP_REPORT_IMPLEMENTATION)
+
+#include <boost/config/pragma_message.hpp>
+BOOST_PRAGMA_MESSAGE("Using std::atomic atomic_count")
+
+#endif
+
 namespace boost
 {
 
@@ -26,7 +33,7 @@ class atomic_count
 {
 public:
 
-    explicit atomic_count( long v ): value_( v )
+    explicit atomic_count( long v ): value_( static_cast< std::int_least32_t >( v ) )
     {
     }
 

include/boost/smart_ptr/detail/atomic_count_sync.hpp

@@ -19,6 +19,13 @@
 # include <ia64intrin.h>
 #endif
 
+#if defined(BOOST_SP_REPORT_IMPLEMENTATION)
+
+#include <boost/config/pragma_message.hpp>
+BOOST_PRAGMA_MESSAGE("Using __sync atomic_count")
+
+#endif
+
 namespace boost
 {
 

include/boost/smart_ptr/detail/atomic_count_win32.hpp

@@ -19,6 +19,13 @@
 
 #include <boost/smart_ptr/detail/sp_interlocked.hpp>
 
+#if defined(BOOST_SP_REPORT_IMPLEMENTATION)
+
+#include <boost/config/pragma_message.hpp>
+BOOST_PRAGMA_MESSAGE("Using Win32 atomic_count")
+
+#endif
+
 namespace boost
 {
 

include/boost/smart_ptr/detail/lightweight_mutex.hpp

@@ -28,15 +28,12 @@
 
 #include <boost/config.hpp>
 
-#if !defined(BOOST_HAS_THREADS)
-#  include <boost/smart_ptr/detail/lwm_nop.hpp>
-#elif defined(BOOST_HAS_PTHREADS)
-#  include <boost/smart_ptr/detail/lwm_pthreads.hpp>
-#elif defined(BOOST_HAS_WINTHREADS) || defined(WIN32) || defined(_WIN32) || defined(__WIN32__) || defined(__CYGWIN__)
+#if !defined(BOOST_NO_CXX11_HDR_MUTEX )
+#  include <boost/smart_ptr/detail/lwm_std_mutex.hpp>
+#elif defined(_WIN32) || defined(__WIN32__) || defined(__CYGWIN__)
 #  include <boost/smart_ptr/detail/lwm_win32_cs.hpp>
 #else
-// Use #define BOOST_DISABLE_THREADS to avoid the error
-#  error Unrecognized threading platform
+#  include <boost/smart_ptr/detail/lwm_pthreads.hpp>
 #endif
 
 #endif // #ifndef BOOST_SMART_PTR_DETAIL_LIGHTWEIGHT_MUTEX_HPP_INCLUDED

include/boost/smart_ptr/detail/lightweight_thread.hpp

@@ -0,0 +1,188 @@
+#ifndef BOOST_SMART_PTR_DETAIL_LIGHTWEIGHT_THREAD_HPP_INCLUDED
+#define BOOST_SMART_PTR_DETAIL_LIGHTWEIGHT_THREAD_HPP_INCLUDED
+
+// MS compatible compilers support #pragma once
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+# pragma once
+#endif
+
+//  boost/detail/lightweight_thread.hpp
+//
+//  Copyright (c) 2002 Peter Dimov and Multi Media Ltd.
+//  Copyright (c) 2008, 2018 Peter Dimov
+//
+//  Distributed under the Boost Software License, Version 1.0.
+//  See accompanying file LICENSE_1_0.txt or copy at
+//  http://www.boost.org/LICENSE_1_0.txt
+//
+//
+//  typedef /*...*/ lw_thread_t; // as pthread_t
+//  template<class F> int lw_thread_create( lw_thread_t & th, F f );
+//  void lw_thread_join( lw_thread_t th );
+
+
+#include <boost/config.hpp>
+#include <memory>
+#include <cerrno>
+
+#if defined( BOOST_HAS_PTHREADS )
+
+#include <pthread.h>
+
+namespace boost
+{
+namespace detail
+{
+
+typedef ::pthread_t lw_thread_t;
+
+inline int lw_thread_create_( lw_thread_t* thread, const pthread_attr_t* attr, void* (*start_routine)( void* ), void* arg )
+{
+    return ::pthread_create( thread, attr, start_routine, arg );
+}
+
+inline void lw_thread_join( lw_thread_t th )
+{
+    ::pthread_join( th, 0 );
+}
+
+} // namespace detail
+} // namespace boost
+
+#else // defined( BOOST_HAS_PTHREADS )
+
+#include <windows.h>
+#include <process.h>
+
+namespace boost
+{
+namespace detail
+{
+
+typedef HANDLE lw_thread_t;
+
+inline int lw_thread_create_( lw_thread_t * thread, void const *, unsigned (__stdcall * start_routine) (void*), void* arg )
+{
+    HANDLE h = (HANDLE)_beginthreadex( 0, 0, start_routine, arg, 0, 0 );
+
+    if( h != 0 )
+    {
+        *thread = h;
+        return 0;
+    }
+    else
+    {
+        return EAGAIN;
+    }
+}
+
+inline void lw_thread_join( lw_thread_t thread )
+{
+    ::WaitForSingleObject( thread, INFINITE );
+    ::CloseHandle( thread );
+}
+
+} // namespace detail
+} // namespace boost
+
+#endif // defined( BOOST_HAS_PTHREADS )
+
+
+namespace boost
+{
+namespace detail
+{
+
+class lw_abstract_thread
+{
+public:
+
+    virtual ~lw_abstract_thread() {}
+    virtual void run() = 0;
+};
+
+#if defined( BOOST_HAS_PTHREADS )
+
+extern "C" void * lw_thread_routine( void * pv )
+{
+#if defined(BOOST_NO_CXX11_SMART_PTR)
+
+    std::auto_ptr<lw_abstract_thread> pt( static_cast<lw_abstract_thread *>( pv ) );
+
+#else
+
+    std::unique_ptr<lw_abstract_thread> pt( static_cast<lw_abstract_thread *>( pv ) );
+
+#endif
+
+    pt->run();
+
+    return 0;
+}
+
+#else
+
+unsigned __stdcall lw_thread_routine( void * pv )
+{
+#if defined(BOOST_NO_CXX11_SMART_PTR)
+
+    std::auto_ptr<lw_abstract_thread> pt( static_cast<lw_abstract_thread *>( pv ) );
+
+#else
+
+    std::unique_ptr<lw_abstract_thread> pt( static_cast<lw_abstract_thread *>( pv ) );
+
+#endif
+
+    pt->run();
+
+    return 0;
+}
+
+#endif
+
+template<class F> class lw_thread_impl: public lw_abstract_thread
+{
+public:
+
+    explicit lw_thread_impl( F f ): f_( f )
+    {
+    }
+
+    void run()
+    {
+        f_();
+    }
+
+private:
+
+    F f_;
+};
+
+template<class F> int lw_thread_create( lw_thread_t & th, F f )
+{
+#if defined(BOOST_NO_CXX11_SMART_PTR)
+
+    std::auto_ptr<lw_abstract_thread> p( new lw_thread_impl<F>( f ) );
+
+#else
+
+    std::unique_ptr<lw_abstract_thread> p( new lw_thread_impl<F>( f ) );
+
+#endif
+
+    int r = lw_thread_create_( &th, 0, lw_thread_routine, p.get() );
+
+    if( r == 0 )
+    {
+        p.release();
+    }
+
+    return r;
+}
+
+} // namespace detail
+} // namespace boost
+
+#endif // #ifndef BOOST_SMART_PTR_DETAIL_LIGHTWEIGHT_THREAD_HPP_INCLUDED

include/boost/smart_ptr/detail/local_counted_base.hpp

@@ -113,12 +113,12 @@ public:
 
 #endif
 
-    virtual void local_cb_destroy() BOOST_SP_NOEXCEPT
+    void local_cb_destroy() BOOST_SP_NOEXCEPT BOOST_OVERRIDE
     {
         delete this;
     }
 
-    virtual boost::detail::shared_count local_cb_get_shared_count() const BOOST_SP_NOEXCEPT
+    boost::detail::shared_count local_cb_get_shared_count() const BOOST_SP_NOEXCEPT BOOST_OVERRIDE
     {
         return pn_;
     }
@@ -130,12 +130,12 @@ public:
 
     shared_count pn_;
 
-    virtual void local_cb_destroy() BOOST_SP_NOEXCEPT
+    void local_cb_destroy() BOOST_SP_NOEXCEPT BOOST_OVERRIDE
     {
         shared_count().swap( pn_ );
     }
 
-    virtual boost::detail::shared_count local_cb_get_shared_count() const BOOST_SP_NOEXCEPT
+    boost::detail::shared_count local_cb_get_shared_count() const BOOST_SP_NOEXCEPT BOOST_OVERRIDE
     {
         return pn_;
     }

include/boost/smart_ptr/detail/lwm_nop.hpp

@@ -1,37 +0,0 @@
-#ifndef BOOST_SMART_PTR_DETAIL_LWM_NOP_HPP_INCLUDED
-#define BOOST_SMART_PTR_DETAIL_LWM_NOP_HPP_INCLUDED
-
-// MS compatible compilers support #pragma once
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1020)
-# pragma once
-#endif
-
-//
-//  boost/detail/lwm_nop.hpp
-//
-//  Copyright (c) 2002 Peter Dimov and Multi Media Ltd.
-//
-// Distributed under the Boost Software License, Version 1.0. (See
-// accompanying file LICENSE_1_0.txt or copy at
-// http://www.boost.org/LICENSE_1_0.txt)
-//
-
-namespace boost
-{
-
-namespace detail
-{
-
-class lightweight_mutex
-{
-public:
-
-    typedef lightweight_mutex scoped_lock;
-};
-
-} // namespace detail
-
-} // namespace boost
-
-#endif // #ifndef BOOST_SMART_PTR_DETAIL_LWM_NOP_HPP_INCLUDED

include/boost/smart_ptr/detail/lwm_std_mutex.hpp

@@ -0,0 +1,62 @@
+#ifndef BOOST_SMART_PTR_DETAIL_LWM_STD_MUTEX_HPP_INCLUDED
+#define BOOST_SMART_PTR_DETAIL_LWM_STD_MUTEX_HPP_INCLUDED
+
+// Copyright 2020 Peter Dimov
+// Distributed under the Boost Software License, Version 1.0.
+// https://www.boost.org/LICENSE_1_0.txt)
+
+#include <boost/assert.hpp>
+#include <mutex>
+
+namespace boost
+{
+
+namespace detail
+{
+
+class lightweight_mutex
+{
+private:
+
+    std::mutex m_;
+
+    lightweight_mutex(lightweight_mutex const &);
+    lightweight_mutex & operator=(lightweight_mutex const &);
+
+public:
+
+    lightweight_mutex()
+    {
+    }
+
+    class scoped_lock;
+    friend class scoped_lock;
+
+    class scoped_lock
+    {
+    private:
+
+        std::mutex & m_;
+
+        scoped_lock(scoped_lock const &);
+        scoped_lock & operator=(scoped_lock const &);
+
+    public:
+
+        scoped_lock( lightweight_mutex & m ): m_( m.m_ )
+        {
+            m_.lock();
+        }
+
+        ~scoped_lock()
+        {
+            m_.unlock();
+        }
+    };
+};
+
+} // namespace detail
+
+} // namespace boost
+
+#endif // #ifndef BOOST_SMART_PTR_DETAIL_LWM_STD_MUTEX_HPP_INCLUDED

include/boost/smart_ptr/detail/lwm_win32_cs.hpp

@@ -11,15 +11,12 @@
 //  boost/detail/lwm_win32_cs.hpp
 //
 //  Copyright (c) 2002, 2003 Peter Dimov
-//  Copyright (c) Microsoft Corporation 2014
 //
 // Distributed under the Boost Software License, Version 1.0. (See
 // accompanying file LICENSE_1_0.txt or copy at
 // http://www.boost.org/LICENSE_1_0.txt)
 //
 
-#include <boost/predef.h>
-
 #ifdef BOOST_USE_WINDOWS_H
 
 #include <windows.h>
@@ -52,11 +49,7 @@ struct critical_section
 #endif
 };
 
-#if BOOST_PLAT_WINDOWS_RUNTIME
-extern "C" __declspec(dllimport) void __stdcall InitializeCriticalSectionEx(::_RTL_CRITICAL_SECTION *, unsigned long, unsigned long);
-#else
 extern "C" __declspec(dllimport) void __stdcall InitializeCriticalSection(::_RTL_CRITICAL_SECTION *);
-#endif
 extern "C" __declspec(dllimport) void __stdcall EnterCriticalSection(::_RTL_CRITICAL_SECTION *);
 extern "C" __declspec(dllimport) void __stdcall LeaveCriticalSection(::_RTL_CRITICAL_SECTION *);
 extern "C" __declspec(dllimport) void __stdcall DeleteCriticalSection(::_RTL_CRITICAL_SECTION *);
@@ -67,11 +60,7 @@ typedef ::_RTL_CRITICAL_SECTION rtl_critical_section;
 
 typedef ::CRITICAL_SECTION critical_section;
 
-#if BOOST_PLAT_WINDOWS_RUNTIME
-using ::InitializeCriticalSectionEx;
-#else
 using ::InitializeCriticalSection;
-#endif
 using ::EnterCriticalSection;
 using ::LeaveCriticalSection;
 using ::DeleteCriticalSection;
@@ -93,11 +82,7 @@ public:
 
     lightweight_mutex()
     {
-#if BOOST_PLAT_WINDOWS_RUNTIME
-        boost::detail::InitializeCriticalSectionEx(reinterpret_cast< rtl_critical_section* >(&cs_), 4000, 0);
-#else
         boost::detail::InitializeCriticalSection(reinterpret_cast< rtl_critical_section* >(&cs_));
-#endif
     }
 
     ~lightweight_mutex()

include/boost/smart_ptr/detail/shared_count.hpp

@@ -18,32 +18,29 @@
 // http://www.boost.org/LICENSE_1_0.txt)
 //
 
-#ifdef __BORLANDC__
+#if defined(__BORLANDC__) && !defined(__clang__)
 # pragma warn -8027     // Functions containing try are not expanded inline
 #endif
 
-#include <boost/config.hpp>
-#include <boost/checked_delete.hpp>
-#include <boost/throw_exception.hpp>
 #include <boost/smart_ptr/bad_weak_ptr.hpp>
 #include <boost/smart_ptr/detail/sp_counted_base.hpp>
 #include <boost/smart_ptr/detail/sp_counted_impl.hpp>
 #include <boost/smart_ptr/detail/sp_disable_deprecated.hpp>
 #include <boost/smart_ptr/detail/sp_noexcept.hpp>
+#include <boost/checked_delete.hpp>
+#include <boost/throw_exception.hpp>
+#include <boost/core/addressof.hpp>
+#include <boost/config.hpp>
 #include <boost/config/workaround.hpp>
-// In order to avoid circular dependencies with Boost.TR1
-// we make sure that our include of <memory> doesn't try to
-// pull in the TR1 headers: that's why we use this header 
-// rather than including <memory> directly:
-#include <boost/config/no_tr1/memory.hpp>  // std::auto_ptr
-#include <functional>       // std::less
+#include <boost/cstdint.hpp>
+#include <memory>            // std::auto_ptr
+#include <functional>        // std::less
+#include <cstddef>           // std::size_t
 
 #ifdef BOOST_NO_EXCEPTIONS
 # include <new>              // std::bad_alloc
 #endif
 
-#include <boost/core/addressof.hpp>
-
 #if defined( BOOST_SP_DISABLE_DEPRECATED )
 #pragma GCC diagnostic push
 #pragma GCC diagnostic ignored "-Wdeprecated-declarations"
@@ -103,6 +100,14 @@ template< class D > struct sp_convert_reference< D& >
     typedef sp_reference_wrapper< D > type;
 };
 
+template<class T> std::size_t sp_hash_pointer( T* p ) BOOST_NOEXCEPT
+{
+    boost::uintptr_t v = reinterpret_cast<boost::uintptr_t>( p );
+
+    // match boost::hash<T*>
+    return static_cast<std::size_t>( v + ( v >> 3 ) );
+}
+
 class weak_count;
 
 class shared_count
@@ -489,22 +494,26 @@ public:
         return pi_ == 0;
     }
 
-    friend inline bool operator==(shared_count const & a, shared_count const & b) BOOST_SP_NOEXCEPT
+    bool operator==( shared_count const & r ) const BOOST_SP_NOEXCEPT
     {
-        return a.pi_ == b.pi_;
+        return pi_ == r.pi_;
     }
 
-    friend inline bool operator<(shared_count const & a, shared_count const & b) BOOST_SP_NOEXCEPT
+    bool operator==( weak_count const & r ) const BOOST_SP_NOEXCEPT;
+
+    bool operator<( shared_count const & r ) const BOOST_SP_NOEXCEPT
     {
-        return std::less<sp_counted_base *>()( a.pi_, b.pi_ );
+        return std::less<sp_counted_base *>()( pi_, r.pi_ );
     }
 
-    void * get_deleter( sp_typeinfo const & ti ) const BOOST_SP_NOEXCEPT
+    bool operator<( weak_count const & r ) const BOOST_SP_NOEXCEPT;
+
+    void * get_deleter( sp_typeinfo_ const & ti ) const BOOST_SP_NOEXCEPT
     {
         return pi_? pi_->get_deleter( ti ): 0;
     }
 
-    void * get_local_deleter( sp_typeinfo const & ti ) const BOOST_SP_NOEXCEPT
+    void * get_local_deleter( sp_typeinfo_ const & ti ) const BOOST_SP_NOEXCEPT
     {
         return pi_? pi_->get_local_deleter( ti ): 0;
     }
@@ -513,6 +522,11 @@ public:
     {
         return pi_? pi_->get_untyped_deleter(): 0;
     }
+
+    std::size_t hash_value() const BOOST_SP_NOEXCEPT
+    {
+        return sp_hash_pointer( pi_ );
+    }
 };
 
 
@@ -620,14 +634,29 @@ public:
         return pi_ == 0;
     }
 
-    friend inline bool operator==(weak_count const & a, weak_count const & b) BOOST_SP_NOEXCEPT
+    bool operator==( weak_count const & r ) const BOOST_SP_NOEXCEPT
     {
-        return a.pi_ == b.pi_;
+        return pi_ == r.pi_;
     }
 
-    friend inline bool operator<(weak_count const & a, weak_count const & b) BOOST_SP_NOEXCEPT
+    bool operator==( shared_count const & r ) const BOOST_SP_NOEXCEPT
     {
-        return std::less<sp_counted_base *>()(a.pi_, b.pi_);
+        return pi_ == r.pi_;
+    }
+
+    bool operator<( weak_count const & r ) const BOOST_SP_NOEXCEPT
+    {
+        return std::less<sp_counted_base *>()( pi_, r.pi_ );
+    }
+
+    bool operator<( shared_count const & r ) const BOOST_SP_NOEXCEPT
+    {
+        return std::less<sp_counted_base *>()( pi_, r.pi_ );
+    }
+
+    std::size_t hash_value() const BOOST_SP_NOEXCEPT
+    {
+        return sp_hash_pointer( pi_ );
     }
 };
 
@@ -653,6 +682,16 @@ inline shared_count::shared_count( weak_count const & r, sp_nothrow_tag ) BOOST_
     }
 }
 
+inline bool shared_count::operator==( weak_count const & r ) const BOOST_SP_NOEXCEPT
+{
+    return pi_ == r.pi_;
+}
+
+inline bool shared_count::operator<( weak_count const & r ) const BOOST_SP_NOEXCEPT
+{
+    return std::less<sp_counted_base *>()( pi_, r.pi_ );
+}
+
 } // namespace detail
 
 } // namespace boost
@@ -661,7 +700,7 @@ inline shared_count::shared_count( weak_count const & r, sp_nothrow_tag ) BOOST_
 #pragma GCC diagnostic pop
 #endif
 
-#ifdef __BORLANDC__
+#if defined(__BORLANDC__) && !defined(__clang__)
 # pragma warn .8027     // Functions containing try are not expanded inline
 #endif
 

include/boost/smart_ptr/detail/sp_convertible.hpp

@@ -26,7 +26,7 @@
 # define BOOST_SP_NO_SP_CONVERTIBLE
 #endif
 
-#if !defined( BOOST_SP_NO_SP_CONVERTIBLE ) && defined( __BORLANDC__ ) && ( __BORLANDC__ < 0x630 )
+#if !defined( BOOST_SP_NO_SP_CONVERTIBLE ) && defined( BOOST_BORLANDC ) && ( BOOST_BORLANDC < 0x630 )
 # define BOOST_SP_NO_SP_CONVERTIBLE
 #endif
 

include/boost/smart_ptr/detail/sp_counted_base_acc_ia64.hpp

@@ -15,10 +15,17 @@
 //  Lock-free algorithm by Alexander Terekhov
 //
 
-#include <boost/detail/sp_typeinfo.hpp>
+#include <boost/smart_ptr/detail/sp_typeinfo_.hpp>
 #include <boost/config.hpp>
 #include <machine/sys/inline.h>
 
+#if defined(BOOST_SP_REPORT_IMPLEMENTATION)
+
+#include <boost/config/pragma_message.hpp>
+BOOST_PRAGMA_MESSAGE("Using HP aCC++/HP-UX/IA64 sp_counted_base")
+
+#endif
+
 namespace boost
 {
 
@@ -104,8 +111,8 @@ public:
         delete this;
     }
 
-    virtual void * get_deleter( sp_typeinfo const & ti ) = 0;
-    virtual void * get_local_deleter( sp_typeinfo const & ti ) = 0;
+    virtual void * get_deleter( sp_typeinfo_ const & ti ) = 0;
+    virtual void * get_local_deleter( sp_typeinfo_ const & ti ) = 0;
     virtual void * get_untyped_deleter() = 0;
 
     void add_ref_copy()

include/boost/smart_ptr/detail/sp_counted_base_aix.hpp

@@ -20,11 +20,18 @@
 //  formulation
 //
 
-#include <boost/detail/sp_typeinfo.hpp>
+#include <boost/smart_ptr/detail/sp_typeinfo_.hpp>
 #include <boost/config.hpp>
 #include <builtins.h>
 #include <sys/atomic_op.h>
 
+#if defined(BOOST_SP_REPORT_IMPLEMENTATION)
+
+#include <boost/config/pragma_message.hpp>
+BOOST_PRAGMA_MESSAGE("Using AIX sp_counted_base")
+
+#endif
+
 namespace boost
 {
 
@@ -96,8 +103,8 @@ public:
         delete this;
     }
 
-    virtual void * get_deleter( sp_typeinfo const & ti ) = 0;
-    virtual void * get_local_deleter( sp_typeinfo const & ti ) = 0;
+    virtual void * get_deleter( sp_typeinfo_ const & ti ) = 0;
+    virtual void * get_local_deleter( sp_typeinfo_ const & ti ) = 0;
     virtual void * get_untyped_deleter() = 0;
 
     void add_ref_copy()

include/boost/smart_ptr/detail/sp_counted_base_clang.hpp

@@ -15,17 +15,34 @@
 //  See accompanying file LICENSE_1_0.txt or copy at
 //  http://www.boost.org/LICENSE_1_0.txt
 
-#include <boost/detail/sp_typeinfo.hpp>
+#include <boost/smart_ptr/detail/sp_typeinfo_.hpp>
 #include <boost/smart_ptr/detail/sp_noexcept.hpp>
 #include <boost/config.hpp>
 #include <boost/cstdint.hpp>
 
+#if defined(BOOST_SP_REPORT_IMPLEMENTATION)
+
+#include <boost/config/pragma_message.hpp>
+BOOST_PRAGMA_MESSAGE("Using Clang/C11 sp_counted_base")
+
+#endif
+
 namespace boost
 {
 
 namespace detail
 {
 
+#if defined(__clang__)
+# pragma clang diagnostic push
+#endif
+
+#if defined(__clang__) && defined(__has_warning)
+# if __has_warning( "-Wc11-extensions" )
+#  pragma clang diagnostic ignored "-Wc11-extensions"
+# endif
+#endif
+
 typedef _Atomic( boost::int_least32_t ) atomic_int_least32_t;
 
 inline void atomic_increment( atomic_int_least32_t * pw ) BOOST_SP_NOEXCEPT
@@ -61,7 +78,6 @@ inline boost::int_least32_t atomic_conditional_increment( atomic_int_least32_t *
 }
 
 #if defined(__clang__)
-# pragma clang diagnostic push
 # pragma clang diagnostic ignored "-Wweak-vtables"
 #endif
 
@@ -99,8 +115,8 @@ public:
         delete this;
     }
 
-    virtual void * get_deleter( sp_typeinfo const & ti ) BOOST_SP_NOEXCEPT = 0;
-    virtual void * get_local_deleter( sp_typeinfo const & ti ) BOOST_SP_NOEXCEPT = 0;
+    virtual void * get_deleter( sp_typeinfo_ const & ti ) BOOST_SP_NOEXCEPT = 0;
+    virtual void * get_local_deleter( sp_typeinfo_ const & ti ) BOOST_SP_NOEXCEPT = 0;
     virtual void * get_untyped_deleter() BOOST_SP_NOEXCEPT = 0;
 
     void add_ref_copy() BOOST_SP_NOEXCEPT

include/boost/smart_ptr/detail/sp_counted_base_cw_ppc.hpp

@@ -24,9 +24,16 @@
 //  formulation
 //
 
-#include <boost/detail/sp_typeinfo.hpp>
+#include <boost/smart_ptr/detail/sp_typeinfo_.hpp>
 #include <boost/config.hpp>
 
+#if defined(BOOST_SP_REPORT_IMPLEMENTATION)
+
+#include <boost/config/pragma_message.hpp>
+BOOST_PRAGMA_MESSAGE("Using CodeWarrior/PowerPC sp_counted_base")
+
+#endif
+
 namespace boost
 {
 
@@ -124,8 +131,8 @@ public:
         delete this;
     }
 
-    virtual void * get_deleter( sp_typeinfo const & ti ) = 0;
-    virtual void * get_local_deleter( sp_typeinfo const & ti ) = 0;
+    virtual void * get_deleter( sp_typeinfo_ const & ti ) = 0;
+    virtual void * get_local_deleter( sp_typeinfo_ const & ti ) = 0;
     virtual void * get_untyped_deleter() = 0;
 
     void add_ref_copy()

include/boost/smart_ptr/detail/sp_counted_base_cw_x86.hpp

@@ -25,9 +25,16 @@
 //  formulation
 //
 
-#include <boost/detail/sp_typeinfo.hpp>
+#include <boost/smart_ptr/detail/sp_typeinfo_.hpp>
 #include <boost/config.hpp>
 
+#if defined(BOOST_SP_REPORT_IMPLEMENTATION)
+
+#include <boost/config/pragma_message.hpp>
+BOOST_PRAGMA_MESSAGE("Using CodeWarrior/x86 sp_counted_base")
+
+#endif
+
 namespace boost
 {
 
@@ -112,8 +119,8 @@ public:
         delete this;
     }
 
-    virtual void * get_deleter( sp_typeinfo const & ti ) = 0;
-    virtual void * get_local_deleter( sp_typeinfo const & ti ) = 0;
+    virtual void * get_deleter( sp_typeinfo_ const & ti ) = 0;
+    virtual void * get_local_deleter( sp_typeinfo_ const & ti ) = 0;
     virtual void * get_untyped_deleter() = 0;
 
     void add_ref_copy()

include/boost/smart_ptr/detail/sp_counted_base_gcc_ia64.hpp

@@ -16,9 +16,16 @@
 //  Lock-free algorithm by Alexander Terekhov
 //
 
-#include <boost/detail/sp_typeinfo.hpp>
+#include <boost/smart_ptr/detail/sp_typeinfo_.hpp>
 #include <boost/config.hpp>
 
+#if defined(BOOST_SP_REPORT_IMPLEMENTATION)
+
+#include <boost/config/pragma_message.hpp>
+BOOST_PRAGMA_MESSAGE("Using g++/IA64 sp_counted_base")
+
+#endif
+
 namespace boost
 {
 
@@ -111,8 +118,8 @@ public:
         delete this;
     }
 
-    virtual void * get_deleter( sp_typeinfo const & ti ) = 0;
-    virtual void * get_local_deleter( sp_typeinfo const & ti ) = 0;
+    virtual void * get_deleter( sp_typeinfo_ const & ti ) = 0;
+    virtual void * get_local_deleter( sp_typeinfo_ const & ti ) = 0;
     virtual void * get_untyped_deleter() = 0;
 
     void add_ref_copy()

include/boost/smart_ptr/detail/sp_counted_base_gcc_mips.hpp

@@ -20,9 +20,16 @@
 //  Lock-free algorithm by Alexander Terekhov
 //
 
-#include <boost/detail/sp_typeinfo.hpp>
+#include <boost/smart_ptr/detail/sp_typeinfo_.hpp>
 #include <boost/config.hpp>
 
+#if defined(BOOST_SP_REPORT_IMPLEMENTATION)
+
+#include <boost/config/pragma_message.hpp>
+BOOST_PRAGMA_MESSAGE("Using g++/MIPS sp_counted_base")
+
+#endif
+
 namespace boost
 {
 
@@ -141,8 +148,8 @@ public:
         delete this;
     }
 
-    virtual void * get_deleter( sp_typeinfo const & ti ) = 0;
-    virtual void * get_local_deleter( sp_typeinfo const & ti ) = 0;
+    virtual void * get_deleter( sp_typeinfo_ const & ti ) = 0;
+    virtual void * get_local_deleter( sp_typeinfo_ const & ti ) = 0;
     virtual void * get_untyped_deleter() = 0;
 
     void add_ref_copy()

include/boost/smart_ptr/detail/sp_counted_base_gcc_ppc.hpp

@@ -24,9 +24,16 @@
 //  formulation
 //
 
-#include <boost/detail/sp_typeinfo.hpp>
+#include <boost/smart_ptr/detail/sp_typeinfo_.hpp>
 #include <boost/config.hpp>
 
+#if defined(BOOST_SP_REPORT_IMPLEMENTATION)
+
+#include <boost/config/pragma_message.hpp>
+BOOST_PRAGMA_MESSAGE("Using g++/PowerPC sp_counted_base")
+
+#endif
+
 namespace boost
 {
 
@@ -135,8 +142,8 @@ public:
         delete this;
     }
 
-    virtual void * get_deleter( sp_typeinfo const & ti ) = 0;
-    virtual void * get_local_deleter( sp_typeinfo const & ti ) = 0;
+    virtual void * get_deleter( sp_typeinfo_ const & ti ) = 0;
+    virtual void * get_local_deleter( sp_typeinfo_ const & ti ) = 0;
     virtual void * get_untyped_deleter() = 0;
 
     void add_ref_copy()

include/boost/smart_ptr/detail/sp_counted_base_gcc_sparc.hpp

@@ -19,10 +19,17 @@
 //
 //  Thanks to Michael van der Westhuizen
 
-#include <boost/detail/sp_typeinfo.hpp>
+#include <boost/smart_ptr/detail/sp_typeinfo_.hpp>
 #include <boost/config.hpp>
 #include <inttypes.h> // int32_t
 
+#if defined(BOOST_SP_REPORT_IMPLEMENTATION)
+
+#include <boost/config/pragma_message.hpp>
+BOOST_PRAGMA_MESSAGE("Using g++/Sparc sp_counted_base")
+
+#endif
+
 namespace boost
 {
 
@@ -120,8 +127,8 @@ public:
         delete this;
     }
 
-    virtual void * get_deleter( sp_typeinfo const & ti ) = 0;
-    virtual void * get_local_deleter( sp_typeinfo const & ti ) = 0;
+    virtual void * get_deleter( sp_typeinfo_ const & ti ) = 0;
+    virtual void * get_local_deleter( sp_typeinfo_ const & ti ) = 0;
     virtual void * get_untyped_deleter() = 0;
 
     void add_ref_copy()

include/boost/smart_ptr/detail/sp_counted_base_gcc_x86.hpp

@@ -24,9 +24,16 @@
 //  formulation
 //
 
-#include <boost/detail/sp_typeinfo.hpp>
+#include <boost/smart_ptr/detail/sp_typeinfo_.hpp>
 #include <boost/config.hpp>
 
+#if defined(BOOST_SP_REPORT_IMPLEMENTATION)
+
+#include <boost/config/pragma_message.hpp>
+BOOST_PRAGMA_MESSAGE("Using g++/x86 sp_counted_base")
+
+#endif
+
 namespace boost
 {
 
@@ -127,8 +134,8 @@ public:
         delete this;
     }
 
-    virtual void * get_deleter( sp_typeinfo const & ti ) = 0;
-    virtual void * get_local_deleter( sp_typeinfo const & ti ) = 0;
+    virtual void * get_deleter( sp_typeinfo_ const & ti ) = 0;
+    virtual void * get_local_deleter( sp_typeinfo_ const & ti ) = 0;
     virtual void * get_untyped_deleter() = 0;
 
     void add_ref_copy()

include/boost/smart_ptr/detail/sp_counted_base_nt.hpp

@@ -18,11 +18,18 @@
 // http://www.boost.org/LICENSE_1_0.txt)
 //
 
-#include <boost/detail/sp_typeinfo.hpp>
+#include <boost/smart_ptr/detail/sp_typeinfo_.hpp>
 #include <boost/smart_ptr/detail/sp_noexcept.hpp>
 #include <boost/config.hpp>
 #include <boost/cstdint.hpp>
 
+#if defined(BOOST_SP_REPORT_IMPLEMENTATION)
+
+#include <boost/config/pragma_message.hpp>
+BOOST_PRAGMA_MESSAGE("Using single-threaded, non-atomic sp_counted_base")
+
+#endif
+
 namespace boost
 {
 
@@ -61,8 +68,8 @@ public:
         delete this;
     }
 
-    virtual void * get_deleter( sp_typeinfo const & ti ) BOOST_SP_NOEXCEPT = 0;
-    virtual void * get_local_deleter( sp_typeinfo const & ti ) BOOST_SP_NOEXCEPT = 0;
+    virtual void * get_deleter( sp_typeinfo_ const & ti ) BOOST_SP_NOEXCEPT = 0;
+    virtual void * get_local_deleter( sp_typeinfo_ const & ti ) BOOST_SP_NOEXCEPT = 0;
     virtual void * get_untyped_deleter() BOOST_SP_NOEXCEPT = 0;
 
     void add_ref_copy() BOOST_SP_NOEXCEPT

include/boost/smart_ptr/detail/sp_counted_base_pt.hpp

@@ -18,12 +18,19 @@
 // http://www.boost.org/LICENSE_1_0.txt)
 //
 
-#include <boost/detail/sp_typeinfo.hpp>
+#include <boost/smart_ptr/detail/sp_typeinfo_.hpp>
 #include <boost/assert.hpp>
 #include <boost/config.hpp>
 #include <boost/cstdint.hpp>
 #include <pthread.h>
 
+#if defined(BOOST_SP_REPORT_IMPLEMENTATION)
+
+#include <boost/config/pragma_message.hpp>
+BOOST_PRAGMA_MESSAGE("Using pthread_mutex sp_counted_base")
+
+#endif
+
 namespace boost
 {
 
@@ -72,8 +79,8 @@ public:
         delete this;
     }
 
-    virtual void * get_deleter( sp_typeinfo const & ti ) = 0;
-    virtual void * get_local_deleter( sp_typeinfo const & ti ) = 0;
+    virtual void * get_deleter( sp_typeinfo_ const & ti ) = 0;
+    virtual void * get_local_deleter( sp_typeinfo_ const & ti ) = 0;
     virtual void * get_untyped_deleter() = 0;
 
     void add_ref_copy()

include/boost/smart_ptr/detail/sp_counted_base_snc_ps3.hpp

@@ -6,7 +6,7 @@
 # pragma once
 #endif
 
-//  detail/sp_counted_base_gcc_sparc.hpp - g++ on Sparc V8+
+//  detail/sp_counted_base_gcc_snc_ps3.hpp - PS3 Cell
 //
 //  Copyright (c) 2006 Piotr Wyderski
 //  Copyright (c) 2006 Tomas Puverle
@@ -19,10 +19,17 @@
 //
 //  Thanks to Michael van der Westhuizen
 
-#include <boost/detail/sp_typeinfo.hpp>
+#include <boost/smart_ptr/detail/sp_typeinfo_.hpp>
 #include <boost/config.hpp>
 #include <inttypes.h> // uint32_t
 
+#if defined(BOOST_SP_REPORT_IMPLEMENTATION)
+
+#include <boost/config/pragma_message.hpp>
+BOOST_PRAGMA_MESSAGE("Using PS3 sp_counted_base")
+
+#endif
+
 namespace boost
 {
 
@@ -115,8 +122,8 @@ public:
         delete this;
     }
 
-    virtual void * get_deleter( sp_typeinfo const & ti ) = 0;
-    virtual void * get_local_deleter( sp_typeinfo const & ti ) = 0;
+    virtual void * get_deleter( sp_typeinfo_ const & ti ) = 0;
+    virtual void * get_local_deleter( sp_typeinfo_ const & ti ) = 0;
     virtual void * get_untyped_deleter() = 0;
 
     void add_ref_copy()

include/boost/smart_ptr/detail/sp_counted_base_solaris.hpp

@@ -20,10 +20,17 @@
 //  formulation
 //
 
-#include <boost/detail/sp_typeinfo.hpp>
+#include <boost/smart_ptr/detail/sp_typeinfo_.hpp>
 #include <boost/config.hpp>
 #include <atomic.h>
 
+#if defined(BOOST_SP_REPORT_IMPLEMENTATION)
+
+#include <boost/config/pragma_message.hpp>
+BOOST_PRAGMA_MESSAGE("Using Solaris sp_counted_base")
+
+#endif
+
 namespace boost
 {
 
@@ -62,8 +69,8 @@ public:
         delete this;
     }
 
-    virtual void * get_deleter( sp_typeinfo const & ti ) = 0;
-    virtual void * get_local_deleter( sp_typeinfo const & ti ) = 0;
+    virtual void * get_deleter( sp_typeinfo_ const & ti ) = 0;
+    virtual void * get_local_deleter( sp_typeinfo_ const & ti ) = 0;
     virtual void * get_untyped_deleter() = 0;
 
     void add_ref_copy()

include/boost/smart_ptr/detail/sp_counted_base_spin.hpp

@@ -18,10 +18,17 @@
 //  http://www.boost.org/LICENSE_1_0.txt)
 //
 
-#include <boost/detail/sp_typeinfo.hpp>
+#include <boost/smart_ptr/detail/sp_typeinfo_.hpp>
 #include <boost/smart_ptr/detail/spinlock_pool.hpp>
 #include <boost/config.hpp>
 
+#if defined(BOOST_SP_REPORT_IMPLEMENTATION)
+
+#include <boost/config/pragma_message.hpp>
+BOOST_PRAGMA_MESSAGE("Using spinlock-based sp_counted_base")
+
+#endif
+
 namespace boost
 {
 
@@ -84,8 +91,8 @@ public:
         delete this;
     }
 
-    virtual void * get_deleter( sp_typeinfo const & ti ) = 0;
-    virtual void * get_local_deleter( sp_typeinfo const & ti ) = 0;
+    virtual void * get_deleter( sp_typeinfo_ const & ti ) = 0;
+    virtual void * get_local_deleter( sp_typeinfo_ const & ti ) = 0;
     virtual void * get_untyped_deleter() = 0;
 
     void add_ref_copy()

include/boost/smart_ptr/detail/sp_counted_base_std_atomic.hpp

@@ -15,12 +15,19 @@
 //  See accompanying file LICENSE_1_0.txt or copy at
 //  http://www.boost.org/LICENSE_1_0.txt
 
-#include <boost/detail/sp_typeinfo.hpp>
+#include <boost/smart_ptr/detail/sp_typeinfo_.hpp>
 #include <boost/smart_ptr/detail/sp_noexcept.hpp>
 #include <boost/config.hpp>
 #include <atomic>
 #include <cstdint>
 
+#if defined(BOOST_SP_REPORT_IMPLEMENTATION)
+
+#include <boost/config/pragma_message.hpp>
+BOOST_PRAGMA_MESSAGE("Using std::atomic sp_counted_base")
+
+#endif
+
 namespace boost
 {
 
@@ -91,8 +98,8 @@ public:
         delete this;
     }
 
-    virtual void * get_deleter( sp_typeinfo const & ti ) BOOST_SP_NOEXCEPT = 0;
-    virtual void * get_local_deleter( sp_typeinfo const & ti ) BOOST_SP_NOEXCEPT = 0;
+    virtual void * get_deleter( sp_typeinfo_ const & ti ) BOOST_SP_NOEXCEPT = 0;
+    virtual void * get_local_deleter( sp_typeinfo_ const & ti ) BOOST_SP_NOEXCEPT = 0;
     virtual void * get_untyped_deleter() BOOST_SP_NOEXCEPT = 0;
 
     void add_ref_copy() BOOST_SP_NOEXCEPT

include/boost/smart_ptr/detail/sp_counted_base_sync.hpp

@@ -15,7 +15,7 @@
 //  See accompanying file LICENSE_1_0.txt or copy at
 //  http://www.boost.org/LICENSE_1_0.txt
 
-#include <boost/detail/sp_typeinfo.hpp>
+#include <boost/smart_ptr/detail/sp_typeinfo_.hpp>
 #include <boost/config.hpp>
 #include <limits.h>
 
@@ -23,6 +23,13 @@
 # include <ia64intrin.h>
 #endif
 
+#if defined(BOOST_SP_REPORT_IMPLEMENTATION)
+
+#include <boost/config/pragma_message.hpp>
+BOOST_PRAGMA_MESSAGE("Using __sync sp_counted_base")
+
+#endif
+
 namespace boost
 {
 
@@ -109,8 +116,8 @@ public:
         delete this;
     }
 
-    virtual void * get_deleter( sp_typeinfo const & ti ) = 0;
-    virtual void * get_local_deleter( sp_typeinfo const & ti ) = 0;
+    virtual void * get_deleter( sp_typeinfo_ const & ti ) = 0;
+    virtual void * get_local_deleter( sp_typeinfo_ const & ti ) = 0;
     virtual void * get_untyped_deleter() = 0;
 
     void add_ref_copy()

include/boost/smart_ptr/detail/sp_counted_base_vacpp_ppc.hpp

@@ -21,9 +21,16 @@
 //  formulation
 //
 
-#include <boost/detail/sp_typeinfo.hpp>
+#include <boost/smart_ptr/detail/sp_typeinfo_.hpp>
 #include <boost/config.hpp>
 
+#if defined(BOOST_SP_REPORT_IMPLEMENTATION)
+
+#include <boost/config/pragma_message.hpp>
+BOOST_PRAGMA_MESSAGE("Using xlC/PowerPC sp_counted_base")
+
+#endif
+
 extern "builtin" void __lwsync(void);
 extern "builtin" void __isync(void);
 extern "builtin" int __fetch_and_add(volatile int* addr, int val);
@@ -104,8 +111,8 @@ public:
         delete this;
     }
 
-    virtual void * get_deleter( sp_typeinfo const & ti ) = 0;
-    virtual void * get_local_deleter( sp_typeinfo const & ti ) = 0;
+    virtual void * get_deleter( sp_typeinfo_ const & ti ) = 0;
+    virtual void * get_local_deleter( sp_typeinfo_ const & ti ) = 0;
     virtual void * get_untyped_deleter() = 0;
 
     void add_ref_copy()

include/boost/smart_ptr/detail/sp_counted_base_w32.hpp

@@ -25,10 +25,17 @@
 //
 
 #include <boost/smart_ptr/detail/sp_interlocked.hpp>
-#include <boost/detail/workaround.hpp>
-#include <boost/detail/sp_typeinfo.hpp>
+#include <boost/smart_ptr/detail/sp_typeinfo_.hpp>
+#include <boost/config/workaround.hpp>
 #include <boost/config.hpp>
 
+#if defined(BOOST_SP_REPORT_IMPLEMENTATION)
+
+#include <boost/config/pragma_message.hpp>
+BOOST_PRAGMA_MESSAGE("Using Win32 sp_counted_base")
+
+#endif
+
 namespace boost
 {
 
@@ -67,8 +74,8 @@ public:
         delete this;
     }
 
-    virtual void * get_deleter( sp_typeinfo const & ti ) = 0;
-    virtual void * get_local_deleter( sp_typeinfo const & ti ) = 0;
+    virtual void * get_deleter( sp_typeinfo_ const & ti ) = 0;
+    virtual void * get_local_deleter( sp_typeinfo_ const & ti ) = 0;
     virtual void * get_untyped_deleter() = 0;
 
     void add_ref_copy()

include/boost/smart_ptr/detail/sp_counted_impl.hpp

@@ -18,25 +18,21 @@
 // http://www.boost.org/LICENSE_1_0.txt)
 //
 
-#include <boost/config.hpp>
-
 #if defined(BOOST_SP_USE_STD_ALLOCATOR) && defined(BOOST_SP_USE_QUICK_ALLOCATOR)
 # error BOOST_SP_USE_STD_ALLOCATOR and BOOST_SP_USE_QUICK_ALLOCATOR are incompatible.
 #endif
 
-#include <boost/checked_delete.hpp>
 #include <boost/smart_ptr/detail/sp_counted_base.hpp>
 #include <boost/smart_ptr/detail/sp_noexcept.hpp>
+#include <boost/checked_delete.hpp>
 #include <boost/core/addressof.hpp>
+#include <boost/config.hpp>
 
 #if defined(BOOST_SP_USE_QUICK_ALLOCATOR)
 #include <boost/smart_ptr/detail/quick_allocator.hpp>
 #endif
 
-#if defined(BOOST_SP_USE_STD_ALLOCATOR)
-#include <memory>           // std::allocator
-#endif
-
+#include <memory>           // std::allocator, std::allocator_traits
 #include <cstddef>          // std::size_t
 
 namespace boost
@@ -85,7 +81,7 @@ public:
 #endif
     }
 
-    virtual void dispose() BOOST_SP_NOEXCEPT
+    void dispose() BOOST_SP_NOEXCEPT BOOST_OVERRIDE
     {
 #if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
         boost::sp_scalar_destructor_hook( px_, sizeof(X), this );
@@ -93,17 +89,17 @@ public:
         boost::checked_delete( px_ );
     }
 
-    virtual void * get_deleter( sp_typeinfo const & ) BOOST_SP_NOEXCEPT
+    void * get_deleter( sp_typeinfo_ const & ) BOOST_SP_NOEXCEPT BOOST_OVERRIDE
     {
         return 0;
     }
 
-    virtual void * get_local_deleter( sp_typeinfo const & ) BOOST_SP_NOEXCEPT
+    void * get_local_deleter( sp_typeinfo_ const & ) BOOST_SP_NOEXCEPT BOOST_OVERRIDE
     {
         return 0;
     }
 
-    virtual void * get_untyped_deleter() BOOST_SP_NOEXCEPT
+    void * get_untyped_deleter() BOOST_SP_NOEXCEPT BOOST_OVERRIDE
     {
         return 0;
     }
@@ -168,22 +164,22 @@ public:
     {
     }
 
-    virtual void dispose() BOOST_SP_NOEXCEPT
+    void dispose() BOOST_SP_NOEXCEPT BOOST_OVERRIDE
     {
         del( ptr );
     }
 
-    virtual void * get_deleter( sp_typeinfo const & ti ) BOOST_SP_NOEXCEPT
+    void * get_deleter( sp_typeinfo_ const & ti ) BOOST_SP_NOEXCEPT BOOST_OVERRIDE
     {
-        return ti == BOOST_SP_TYPEID(D)? &reinterpret_cast<char&>( del ): 0;
+        return ti == BOOST_SP_TYPEID_(D)? &reinterpret_cast<char&>( del ): 0;
     }
 
-    virtual void * get_local_deleter( sp_typeinfo const & ti ) BOOST_SP_NOEXCEPT
+    void * get_local_deleter( sp_typeinfo_ const & ti ) BOOST_SP_NOEXCEPT BOOST_OVERRIDE
     {
-        return ti == BOOST_SP_TYPEID(D)? boost::detail::get_local_deleter( boost::addressof( del ) ): 0;
+        return ti == BOOST_SP_TYPEID_(D)? boost::detail::get_local_deleter( boost::addressof( del ) ): 0;
     }
 
-    virtual void * get_untyped_deleter() BOOST_SP_NOEXCEPT
+    void * get_untyped_deleter() BOOST_SP_NOEXCEPT BOOST_OVERRIDE
     {
         return &reinterpret_cast<char&>( del );
     }
@@ -242,12 +238,12 @@ public:
     {
     }
 
-    virtual void dispose() BOOST_SP_NOEXCEPT
+    void dispose() BOOST_SP_NOEXCEPT BOOST_OVERRIDE
     {
         d_( p_ );
     }
 
-    virtual void destroy() BOOST_SP_NOEXCEPT
+    void destroy() BOOST_SP_NOEXCEPT BOOST_OVERRIDE
     {
 #if !defined( BOOST_NO_CXX11_ALLOCATOR )
 
@@ -266,17 +262,17 @@ public:
         a2.deallocate( this, 1 );
     }
 
-    virtual void * get_deleter( sp_typeinfo const & ti ) BOOST_SP_NOEXCEPT
+    void * get_deleter( sp_typeinfo_ const & ti ) BOOST_SP_NOEXCEPT BOOST_OVERRIDE
     {
-        return ti == BOOST_SP_TYPEID( D )? &reinterpret_cast<char&>( d_ ): 0;
+        return ti == BOOST_SP_TYPEID_( D )? &reinterpret_cast<char&>( d_ ): 0;
     }
 
-    virtual void * get_local_deleter( sp_typeinfo const & ti ) BOOST_SP_NOEXCEPT
+    void * get_local_deleter( sp_typeinfo_ const & ti ) BOOST_SP_NOEXCEPT BOOST_OVERRIDE
     {
-        return ti == BOOST_SP_TYPEID(D)? boost::detail::get_local_deleter( boost::addressof( d_ ) ): 0;
+        return ti == BOOST_SP_TYPEID_( D )? boost::detail::get_local_deleter( boost::addressof( d_ ) ): 0;
     }
 
-    virtual void * get_untyped_deleter() BOOST_SP_NOEXCEPT
+    void * get_untyped_deleter() BOOST_SP_NOEXCEPT BOOST_OVERRIDE
     {
         return &reinterpret_cast<char&>( d_ );
     }

include/boost/smart_ptr/detail/sp_typeinfo_.hpp

@@ -0,0 +1,58 @@
+#ifndef BOOST_SMART_PTR_DETAIL_SP_TYPEINFO_HPP_INCLUDED
+#define BOOST_SMART_PTR_DETAIL_SP_TYPEINFO_HPP_INCLUDED
+
+// MS compatible compilers support #pragma once
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+# pragma once
+#endif
+
+//  smart_ptr/detail/sp_typeinfo_.hpp
+//
+//  Copyright 2007, 2019 Peter Dimov
+//
+//  Distributed under the Boost Software License, Version 1.0.
+//  See accompanying file LICENSE_1_0.txt or copy at
+//  http://www.boost.org/LICENSE_1_0.txt)
+
+#include <boost/config.hpp>
+
+#if defined( BOOST_NO_TYPEID ) || defined( BOOST_NO_STD_TYPEINFO )
+
+#include <boost/core/typeinfo.hpp>
+
+namespace boost
+{
+
+namespace detail
+{
+
+typedef boost::core::typeinfo sp_typeinfo_;
+
+} // namespace detail
+
+} // namespace boost
+
+#define BOOST_SP_TYPEID_(T) BOOST_CORE_TYPEID(T)
+
+#else // defined( BOOST_NO_TYPEID ) || defined( BOOST_NO_STD_TYPEINFO )
+
+#include <typeinfo>
+
+namespace boost
+{
+
+namespace detail
+{
+
+typedef std::type_info sp_typeinfo_;
+
+} // namespace detail
+
+} // namespace boost
+
+#define BOOST_SP_TYPEID_(T) typeid(T)
+
+#endif // defined( BOOST_NO_TYPEID ) || defined( BOOST_NO_STD_TYPEINFO )
+
+#endif  // #ifndef BOOST_SMART_PTR_DETAIL_SP_TYPEINFO_HPP_INCLUDED

include/boost/smart_ptr/detail/spinlock_gcc_arm.hpp

@@ -11,6 +11,13 @@
 
 #include <boost/smart_ptr/detail/yield_k.hpp>
 
+#if defined(BOOST_SP_REPORT_IMPLEMENTATION)
+
+#include <boost/config/pragma_message.hpp>
+BOOST_PRAGMA_MESSAGE("Using g++/ARM spinlock")
+
+#endif
+
 #if defined(__ARM_ARCH_7__) || defined(__ARM_ARCH_7A__) || defined(__ARM_ARCH_7R__) || defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7EM__) || defined(__ARM_ARCH_7S__)
 
 # define BOOST_SP_ARM_BARRIER "dmb"

include/boost/smart_ptr/detail/spinlock_nt.hpp

@@ -17,6 +17,13 @@
 
 #include <boost/assert.hpp>
 
+#if defined(BOOST_SP_REPORT_IMPLEMENTATION)
+
+#include <boost/config/pragma_message.hpp>
+BOOST_PRAGMA_MESSAGE("Using single-threaded spinlock emulation")
+
+#endif
+
 namespace boost
 {
 

include/boost/smart_ptr/detail/spinlock_pt.hpp

@@ -17,6 +17,13 @@
 
 #include <pthread.h>
 
+#if defined(BOOST_SP_REPORT_IMPLEMENTATION)
+
+#include <boost/config/pragma_message.hpp>
+BOOST_PRAGMA_MESSAGE("Using pthread_mutex spinlock emulation")
+
+#endif
+
 namespace boost
 {
 

include/boost/smart_ptr/detail/spinlock_std_atomic.hpp

@@ -19,6 +19,13 @@
 #include <boost/config.hpp>
 #include <atomic>
 
+#if defined(BOOST_SP_REPORT_IMPLEMENTATION)
+
+#include <boost/config/pragma_message.hpp>
+BOOST_PRAGMA_MESSAGE("Using std::atomic spinlock")
+
+#endif
+
 namespace boost
 {
 

include/boost/smart_ptr/detail/spinlock_sync.hpp

@@ -21,6 +21,13 @@
 # include <ia64intrin.h>
 #endif
 
+#if defined(BOOST_SP_REPORT_IMPLEMENTATION)
+
+#include <boost/config/pragma_message.hpp>
+BOOST_PRAGMA_MESSAGE("Using __sync spinlock")
+
+#endif
+
 namespace boost
 {
 

include/boost/smart_ptr/detail/spinlock_w32.hpp

@@ -18,6 +18,13 @@
 #include <boost/smart_ptr/detail/sp_interlocked.hpp>
 #include <boost/smart_ptr/detail/yield_k.hpp>
 
+#if defined(BOOST_SP_REPORT_IMPLEMENTATION)
+
+#include <boost/config/pragma_message.hpp>
+BOOST_PRAGMA_MESSAGE("Using Win32 spinlock")
+
+#endif
+
 // BOOST_COMPILER_FENCE
 
 #if defined(__INTEL_COMPILER)

include/boost/smart_ptr/detail/yield_k.hpp

@@ -11,7 +11,6 @@
 //  yield_k.hpp
 //
 //  Copyright (c) 2008 Peter Dimov
-//  Copyright (c) Microsoft Corporation 2014
 //
 //  void yield( unsigned k );
 //
@@ -25,11 +24,6 @@
 //
 
 #include <boost/config.hpp>
-#include <boost/predef/platform/windows_runtime.h>
-
-#if BOOST_PLAT_WINDOWS_RUNTIME
-#include <thread>
-#endif
 
 // BOOST_SMT_PAUSE
 
@@ -59,7 +53,7 @@ namespace boost
 namespace detail
 {
 
-#if !defined( BOOST_USE_WINDOWS_H ) && !BOOST_PLAT_WINDOWS_RUNTIME
+#if !defined( BOOST_USE_WINDOWS_H )
 
 #if defined(__clang__) && defined(__x86_64__)
 // clang x64 warns that __stdcall is ignored
@@ -76,7 +70,7 @@ namespace detail
 
 #undef BOOST_SP_STDCALL
 
-#endif // !defined( BOOST_USE_WINDOWS_H ) && !BOOST_PLAT_WINDOWS_RUNTIME
+#endif // !defined( BOOST_USE_WINDOWS_H )
 
 inline void yield( unsigned k ) BOOST_NOEXCEPT
 {
@@ -89,7 +83,6 @@ inline void yield( unsigned k ) BOOST_NOEXCEPT
         BOOST_SMT_PAUSE
     }
 #endif
-#if !BOOST_PLAT_WINDOWS_RUNTIME
     else if( k < 32 )
     {
         Sleep( 0 );
@@ -98,13 +91,6 @@ inline void yield( unsigned k ) BOOST_NOEXCEPT
     {
         Sleep( 1 );
     }
-#else
-    else
-    {
-        // Sleep isn't supported on the Windows Runtime.
-        std::this_thread::yield();
-    }
-#endif
 }
 
 } // namespace detail

include/boost/smart_ptr/enable_shared_from.hpp

@@ -0,0 +1,41 @@
+#ifndef BOOST_SMART_PTR_ENABLE_SHARED_FROM_HPP_INCLUDED
+#define BOOST_SMART_PTR_ENABLE_SHARED_FROM_HPP_INCLUDED
+
+//  enable_shared_from.hpp
+//
+//  Copyright 2019, 2020 Peter Dimov
+//
+//  Distributed under the Boost Software License, Version 1.0.
+//  See accompanying file LICENSE_1_0.txt or copy at
+//  http://www.boost.org/LICENSE_1_0.txt
+//
+//  See http://www.boost.org/libs/smart_ptr/ for documentation.
+
+#include <boost/smart_ptr/enable_shared_from_this.hpp>
+#include <boost/smart_ptr/detail/sp_noexcept.hpp>
+
+namespace boost
+{
+
+class enable_shared_from: public enable_shared_from_this<enable_shared_from>
+{
+private:
+
+    using enable_shared_from_this<enable_shared_from>::shared_from_this;
+    using enable_shared_from_this<enable_shared_from>::weak_from_this;
+};
+
+
+template<class T> shared_ptr<T> shared_from( T * p )
+{
+    return shared_ptr<T>( p->enable_shared_from_this<enable_shared_from>::shared_from_this(), p );
+}
+
+template<class T> weak_ptr<T> weak_from( T * p ) BOOST_SP_NOEXCEPT
+{
+    return weak_ptr<T>( p->enable_shared_from_this<enable_shared_from>::weak_from_this(), p );
+}
+
+} // namespace boost
+
+#endif  // #ifndef BOOST_SMART_PTR_ENABLE_SHARED_FROM_HPP_INCLUDED

include/boost/smart_ptr/enable_shared_from_raw.hpp

@@ -16,7 +16,7 @@
 #include <boost/shared_ptr.hpp>
 #include <boost/weak_ptr.hpp>
 #include <boost/assert.hpp>
-#include <boost/detail/workaround.hpp>
+#include <boost/config/workaround.hpp>
 
 namespace boost
 {
@@ -144,8 +144,7 @@ template<typename T>
 boost::weak_ptr<T> weak_from_raw(T *p)
 {
     BOOST_ASSERT(p != 0);
-    boost::weak_ptr<T> result;
-    result._internal_aliasing_assign(p->enable_shared_from_raw::weak_from_this(), p);
+    boost::weak_ptr<T> result(p->enable_shared_from_raw::weak_from_this(), p);
     return result;
 }
 

include/boost/smart_ptr/intrusive_ptr.hpp

@@ -16,7 +16,7 @@
 #include <boost/config.hpp>
 
 #include <boost/assert.hpp>
-#include <boost/detail/workaround.hpp>
+#include <boost/config/workaround.hpp>
 #include <boost/smart_ptr/detail/sp_convertible.hpp>
 #include <boost/smart_ptr/detail/sp_nullptr_t.hpp>
 #include <boost/smart_ptr/detail/sp_noexcept.hpp>
@@ -297,6 +297,8 @@ template<class T> T * get_pointer(intrusive_ptr<T> const & p) BOOST_SP_NOEXCEPT
     return p.get();
 }
 
+// pointer casts
+
 template<class T, class U> intrusive_ptr<T> static_pointer_cast(intrusive_ptr<U> const & p)
 {
     return static_cast<T *>(p.get());
@@ -312,6 +314,31 @@ template<class T, class U> intrusive_ptr<T> dynamic_pointer_cast(intrusive_ptr<U
     return dynamic_cast<T *>(p.get());
 }
 
+#if !defined( BOOST_NO_CXX11_RVALUE_REFERENCES )
+
+template<class T, class U> intrusive_ptr<T> static_pointer_cast( intrusive_ptr<U> && p ) BOOST_SP_NOEXCEPT
+{
+    return intrusive_ptr<T>( static_cast<T*>( p.detach() ), false );
+}
+
+template<class T, class U> intrusive_ptr<T> const_pointer_cast( intrusive_ptr<U> && p ) BOOST_SP_NOEXCEPT
+{
+    return intrusive_ptr<T>( const_cast<T*>( p.detach() ), false );
+}
+
+template<class T, class U> intrusive_ptr<T> dynamic_pointer_cast( intrusive_ptr<U> && p ) BOOST_SP_NOEXCEPT
+{
+    T * p2 = dynamic_cast<T*>( p.get() );
+
+    intrusive_ptr<T> r( p2, false );
+
+    if( p2 ) p.detach();
+
+    return r;
+}
+
+#endif // defined( BOOST_NO_CXX11_RVALUE_REFERENCES )
+
 // operator<<
 
 #if !defined(BOOST_NO_IOSTREAM)
@@ -358,4 +385,23 @@ template< class T > std::size_t hash_value( boost::intrusive_ptr<T> const & p )
 
 } // namespace boost
 
+// std::hash
+
+#if !defined(BOOST_NO_CXX11_HDR_FUNCTIONAL)
+
+namespace std
+{
+
+template<class T> struct hash< ::boost::intrusive_ptr<T> >
+{
+    std::size_t operator()( ::boost::intrusive_ptr<T> const & p ) const BOOST_SP_NOEXCEPT
+    {
+        return std::hash< T* >()( p.get() );
+    }
+};
+
+} // namespace std
+
+#endif // #if !defined(BOOST_NO_CXX11_HDR_FUNCTIONAL)
+
 #endif  // #ifndef BOOST_SMART_PTR_INTRUSIVE_PTR_HPP_INCLUDED

include/boost/smart_ptr/local_shared_ptr.hpp

@@ -494,6 +494,13 @@ public:
     {
         return std::less< boost::detail::local_counted_base* >()( pn, r.pn );
     }
+
+    // owner_equals
+
+    template<class Y> bool owner_equals( local_shared_ptr<Y> const & r ) const BOOST_SP_NOEXCEPT
+    {
+        return pn == r.pn;
+    }
 };
 
 template<class T, class U> inline bool operator==( local_shared_ptr<T> const & a, local_shared_ptr<U> const & b ) BOOST_SP_NOEXCEPT
@@ -681,4 +688,23 @@ template< class T > std::size_t hash_value( local_shared_ptr<T> const & p ) BOOS
 
 } // namespace boost
 
+// std::hash
+
+#if !defined(BOOST_NO_CXX11_HDR_FUNCTIONAL)
+
+namespace std
+{
+
+template<class T> struct hash< ::boost::local_shared_ptr<T> >
+{
+    std::size_t operator()( ::boost::local_shared_ptr<T> const & p ) const BOOST_SP_NOEXCEPT
+    {
+        return std::hash< typename ::boost::local_shared_ptr<T>::element_type* >()( p.get() );
+    }
+};
+
+} // namespace std
+
+#endif // #if !defined(BOOST_NO_CXX11_HDR_FUNCTIONAL)
+
 #endif  // #ifndef BOOST_SMART_PTR_LOCAL_SHARED_PTR_HPP_INCLUDED

include/boost/smart_ptr/make_local_shared_array.hpp

@@ -9,6 +9,7 @@ Distributed under the Boost Software License, Version 1.0.
 #ifndef BOOST_SMART_PTR_MAKE_LOCAL_SHARED_ARRAY_HPP
 #define BOOST_SMART_PTR_MAKE_LOCAL_SHARED_ARRAY_HPP
 
+#include <boost/core/default_allocator.hpp>
 #include <boost/smart_ptr/allocate_local_shared_array.hpp>
 
 namespace boost {
@@ -18,8 +19,8 @@ inline typename enable_if_<is_bounded_array<T>::value,
     local_shared_ptr<T> >::type
 make_local_shared()
 {
-    return boost::allocate_local_shared<T>(std::allocator<typename
-        detail::sp_array_scalar<T>::type>());
+    return boost::allocate_local_shared<T>(boost::default_allocator<typename
+        detail::sp_array_element<T>::type>());
 }
 
 template<class T>
@@ -27,8 +28,8 @@ inline typename enable_if_<is_bounded_array<T>::value,
     local_shared_ptr<T> >::type
 make_local_shared(const typename remove_extent<T>::type& value)
 {
-    return boost::allocate_local_shared<T>(std::allocator<typename
-        detail::sp_array_scalar<T>::type>(), value);
+    return boost::allocate_local_shared<T>(boost::default_allocator<typename
+        detail::sp_array_element<T>::type>(), value);
 }
 
 template<class T>
@@ -36,8 +37,8 @@ inline typename enable_if_<is_unbounded_array<T>::value,
     local_shared_ptr<T> >::type
 make_local_shared(std::size_t size)
 {
-    return boost::allocate_local_shared<T>(std::allocator<typename
-        detail::sp_array_scalar<T>::type>(), size);
+    return boost::allocate_local_shared<T>(boost::default_allocator<typename
+        detail::sp_array_element<T>::type>(), size);
 }
 
 template<class T>
@@ -46,8 +47,8 @@ inline typename enable_if_<is_unbounded_array<T>::value,
 make_local_shared(std::size_t size,
     const typename remove_extent<T>::type& value)
 {
-    return boost::allocate_local_shared<T>(std::allocator<typename
-        detail::sp_array_scalar<T>::type>(), size, value);
+    return boost::allocate_local_shared<T>(boost::default_allocator<typename
+        detail::sp_array_element<T>::type>(), size, value);
 }
 
 template<class T>
@@ -55,8 +56,8 @@ inline typename enable_if_<is_bounded_array<T>::value,
     local_shared_ptr<T> >::type
 make_local_shared_noinit()
 {
-    return boost::allocate_local_shared_noinit<T>(std::allocator<typename
-        detail::sp_array_scalar<T>::type>());
+    return boost::allocate_local_shared_noinit<T>(boost::
+        default_allocator<typename detail::sp_array_element<T>::type>());
 }
 
 template<class T>
@@ -64,8 +65,8 @@ inline typename enable_if_<is_unbounded_array<T>::value,
     local_shared_ptr<T> >::type
 make_local_shared_noinit(std::size_t size)
 {
-    return boost::allocate_local_shared_noinit<T>(std::allocator<typename
-        detail::sp_array_scalar<T>::type>(), size);
+    return boost::allocate_local_shared_noinit<T>(boost::
+        default_allocator<typename detail::sp_array_element<T>::type>(), size);
 }
 
 } /* boost */

include/boost/smart_ptr/make_shared_array.hpp

@@ -8,6 +8,7 @@ Distributed under the Boost Software License, Version 1.0.
 #ifndef BOOST_SMART_PTR_MAKE_SHARED_ARRAY_HPP
 #define BOOST_SMART_PTR_MAKE_SHARED_ARRAY_HPP
 
+#include <boost/core/default_allocator.hpp>
 #include <boost/smart_ptr/allocate_shared_array.hpp>
 
 namespace boost {
@@ -16,48 +17,48 @@ template<class T>
 inline typename enable_if_<is_bounded_array<T>::value, shared_ptr<T> >::type
 make_shared()
 {
-    return boost::allocate_shared<T>(std::allocator<typename
-        detail::sp_array_scalar<T>::type>());
+    return boost::allocate_shared<T>(boost::default_allocator<typename
+        detail::sp_array_element<T>::type>());
 }
 
 template<class T>
 inline typename enable_if_<is_bounded_array<T>::value, shared_ptr<T> >::type
 make_shared(const typename remove_extent<T>::type& value)
 {
-    return boost::allocate_shared<T>(std::allocator<typename
-        detail::sp_array_scalar<T>::type>(), value);
+    return boost::allocate_shared<T>(boost::default_allocator<typename
+        detail::sp_array_element<T>::type>(), value);
 }
 
 template<class T>
 inline typename enable_if_<is_unbounded_array<T>::value, shared_ptr<T> >::type
 make_shared(std::size_t size)
 {
-    return boost::allocate_shared<T>(std::allocator<typename
-        detail::sp_array_scalar<T>::type>(), size);
+    return boost::allocate_shared<T>(boost::default_allocator<typename
+        detail::sp_array_element<T>::type>(), size);
 }
 
 template<class T>
 inline typename enable_if_<is_unbounded_array<T>::value, shared_ptr<T> >::type
 make_shared(std::size_t size, const typename remove_extent<T>::type& value)
 {
-    return boost::allocate_shared<T>(std::allocator<typename
-        detail::sp_array_scalar<T>::type>(), size, value);
+    return boost::allocate_shared<T>(boost::default_allocator<typename
+        detail::sp_array_element<T>::type>(), size, value);
 }
 
 template<class T>
 inline typename enable_if_<is_bounded_array<T>::value, shared_ptr<T> >::type
 make_shared_noinit()
 {
-    return boost::allocate_shared_noinit<T>(std::allocator<typename
-        detail::sp_array_scalar<T>::type>());
+    return boost::allocate_shared_noinit<T>(boost::default_allocator<typename
+        detail::sp_array_element<T>::type>());
 }
 
 template<class T>
 inline typename enable_if_<is_unbounded_array<T>::value, shared_ptr<T> >::type
 make_shared_noinit(std::size_t size)
 {
-    return boost::allocate_shared_noinit<T>(std::allocator<typename
-        detail::sp_array_scalar<T>::type>(), size);
+    return boost::allocate_shared_noinit<T>(boost::default_allocator<typename
+        detail::sp_array_element<T>::type>(), size);
 }
 
 } /* boost */

include/boost/smart_ptr/make_shared_object.hpp

@@ -187,7 +187,7 @@ template< class T > struct sp_if_not_array< T[] >
 {
 };
 
-#if !defined( __BORLANDC__ ) || !BOOST_WORKAROUND( __BORLANDC__, < 0x600 )
+#if !defined( BOOST_BORLANDC ) || !BOOST_WORKAROUND( BOOST_BORLANDC, < 0x600 )
 
 template< class T, std::size_t N > struct sp_if_not_array< T[N] >
 {

include/boost/smart_ptr/owner_equal_to.hpp

@@ -0,0 +1,27 @@
+#ifndef BOOST_SMART_PTR_OWNER_EQUAL_TO_HPP_INCLUDED
+#define BOOST_SMART_PTR_OWNER_EQUAL_TO_HPP_INCLUDED
+
+// Copyright 2020 Peter Dimov
+// Distributed under the Boost Software License, Version 1.0.
+// https://www.boost.org/LICENSE_1_0.txt
+
+#include <boost/config.hpp>
+
+namespace boost
+{
+
+template<class T = void> struct owner_equal_to
+{
+    typedef bool result_type;
+    typedef T first_argument_type;
+    typedef T second_argument_type;
+
+    template<class U, class V> bool operator()( U const & u, V const & v ) const BOOST_NOEXCEPT
+    {
+        return u.owner_equals( v );
+    }
+};
+
+} // namespace boost
+
+#endif  // #ifndef BOOST_SMART_PTR_OWNER_EQUAL_TO_HPP_INCLUDED

include/boost/smart_ptr/owner_less.hpp

@@ -14,6 +14,8 @@
 //  See http://www.boost.org/libs/smart_ptr/ for documentation.
 //
 
+#include <boost/config.hpp>
+
 namespace boost
 {
 
@@ -23,7 +25,7 @@ template<class T = void> struct owner_less
     typedef T first_argument_type;
     typedef T second_argument_type;
 
-    template<class U, class V> bool operator()( U const & u, V const & v ) const
+    template<class U, class V> bool operator()( U const & u, V const & v ) const BOOST_NOEXCEPT
     {
         return u.owner_before( v );
     }

include/boost/smart_ptr/scoped_array.hpp

@@ -16,7 +16,7 @@
 #include <boost/smart_ptr/detail/sp_nullptr_t.hpp>
 #include <boost/smart_ptr/detail/sp_noexcept.hpp>
 
-#include <boost/detail/workaround.hpp>
+#include <boost/config/workaround.hpp>
 
 #include <cstddef>            // for std::ptrdiff_t
 

include/boost/smart_ptr/scoped_ptr.hpp

@@ -16,7 +16,7 @@
 #include <boost/smart_ptr/detail/sp_nullptr_t.hpp>
 #include <boost/smart_ptr/detail/sp_disable_deprecated.hpp>
 #include <boost/smart_ptr/detail/sp_noexcept.hpp>
-#include <boost/detail/workaround.hpp>
+#include <boost/config/workaround.hpp>
 
 #ifndef BOOST_NO_AUTO_PTR
 # include <memory>          // for std::auto_ptr

include/boost/smart_ptr/shared_array.hpp

@@ -25,7 +25,7 @@
 #include <boost/smart_ptr/detail/shared_count.hpp>
 #include <boost/smart_ptr/detail/sp_nullptr_t.hpp>
 #include <boost/smart_ptr/detail/sp_noexcept.hpp>
-#include <boost/detail/workaround.hpp>
+#include <boost/config/workaround.hpp>
 
 #include <cstddef>            // for std::ptrdiff_t
 #include <algorithm>          // for std::swap
@@ -225,7 +225,7 @@ public:
         pn.swap(other.pn);
     }
 
-    void * _internal_get_deleter( boost::detail::sp_typeinfo const & ti ) const BOOST_SP_NOEXCEPT
+    void * _internal_get_deleter( boost::detail::sp_typeinfo_ const & ti ) const BOOST_SP_NOEXCEPT
     {
         return pn.get_deleter( ti );
     }
@@ -285,7 +285,7 @@ template<class T> void swap(shared_array<T> & a, shared_array<T> & b) BOOST_SP_N
 
 template< class D, class T > D * get_deleter( shared_array<T> const & p ) BOOST_SP_NOEXCEPT
 {
-    return static_cast< D * >( p._internal_get_deleter( BOOST_SP_TYPEID(D) ) );
+    return static_cast< D * >( p._internal_get_deleter( BOOST_SP_TYPEID_(D) ) );
 }
 
 } // namespace boost

include/boost/smart_ptr/shared_ptr.hpp

@@ -14,23 +14,16 @@
 //  See http://www.boost.org/libs/smart_ptr/ for documentation.
 //
 
-#include <boost/config.hpp>   // for broken compiler workarounds
-
-// In order to avoid circular dependencies with Boost.TR1
-// we make sure that our include of <memory> doesn't try to
-// pull in the TR1 headers: that's why we use this header 
-// rather than including <memory> directly:
-#include <boost/config/no_tr1/memory.hpp>  // std::auto_ptr
-
-#include <boost/assert.hpp>
-#include <boost/checked_delete.hpp>
-#include <boost/throw_exception.hpp>
 #include <boost/smart_ptr/detail/shared_count.hpp>
-#include <boost/detail/workaround.hpp>
 #include <boost/smart_ptr/detail/sp_convertible.hpp>
 #include <boost/smart_ptr/detail/sp_nullptr_t.hpp>
 #include <boost/smart_ptr/detail/sp_disable_deprecated.hpp>
 #include <boost/smart_ptr/detail/sp_noexcept.hpp>
+#include <boost/checked_delete.hpp>
+#include <boost/throw_exception.hpp>
+#include <boost/assert.hpp>
+#include <boost/config.hpp>
+#include <boost/config/workaround.hpp>
 
 #if !defined(BOOST_SP_NO_ATOMIC_ACCESS)
 #include <boost/smart_ptr/detail/spinlock_pool.hpp>
@@ -40,6 +33,7 @@
 #include <functional>           // for std::less
 #include <typeinfo>             // for std::bad_cast
 #include <cstddef>              // for std::size_t
+#include <memory>               // for std::auto_ptr
 
 #if !defined(BOOST_NO_IOSTREAM)
 #if !defined(BOOST_NO_IOSFWD)
@@ -86,7 +80,7 @@ template< class T > struct sp_element< T[] >
     typedef T type;
 };
 
-#if !defined( __BORLANDC__ ) || !BOOST_WORKAROUND( __BORLANDC__, < 0x600 )
+#if !defined( BOOST_BORLANDC ) || !BOOST_WORKAROUND( BOOST_BORLANDC, < 0x600 )
 
 template< class T, std::size_t N > struct sp_element< T[N] >
 {
@@ -135,7 +129,7 @@ template< class T > struct sp_dereference< T[] >
     typedef void type;
 };
 
-#if !defined( __BORLANDC__ ) || !BOOST_WORKAROUND( __BORLANDC__, < 0x600 )
+#if !defined( BOOST_BORLANDC ) || !BOOST_WORKAROUND( BOOST_BORLANDC, < 0x600 )
 
 template< class T, std::size_t N > struct sp_dereference< T[N] >
 {
@@ -160,7 +154,7 @@ template< class T > struct sp_member_access< T[] >
     typedef void type;
 };
 
-#if !defined( __BORLANDC__ ) || !BOOST_WORKAROUND( __BORLANDC__, < 0x600 )
+#if !defined( BOOST_BORLANDC ) || !BOOST_WORKAROUND( BOOST_BORLANDC, < 0x600 )
 
 template< class T, std::size_t N > struct sp_member_access< T[N] >
 {
@@ -185,7 +179,7 @@ template< class T > struct sp_array_access< T[] >
     typedef T & type;
 };
 
-#if !defined( __BORLANDC__ ) || !BOOST_WORKAROUND( __BORLANDC__, < 0x600 )
+#if !defined( BOOST_BORLANDC ) || !BOOST_WORKAROUND( BOOST_BORLANDC, < 0x600 )
 
 template< class T, std::size_t N > struct sp_array_access< T[N] >
 {
@@ -777,12 +771,27 @@ public:
         return pn < rhs.pn;
     }
 
-    void * _internal_get_deleter( boost::detail::sp_typeinfo const & ti ) const BOOST_SP_NOEXCEPT
+    template<class Y> bool owner_equals( shared_ptr<Y> const & rhs ) const BOOST_SP_NOEXCEPT
+    {
+        return pn == rhs.pn;
+    }
+
+    template<class Y> bool owner_equals( weak_ptr<Y> const & rhs ) const BOOST_SP_NOEXCEPT
+    {
+        return pn == rhs.pn;
+    }
+
+    std::size_t owner_hash_value() const BOOST_SP_NOEXCEPT
+    {
+        return pn.hash_value();
+    }
+
+    void * _internal_get_deleter( boost::detail::sp_typeinfo_ const & ti ) const BOOST_SP_NOEXCEPT
     {
         return pn.get_deleter( ti );
     }
 
-    void * _internal_get_local_deleter( boost::detail::sp_typeinfo const & ti ) const BOOST_SP_NOEXCEPT
+    void * _internal_get_local_deleter( boost::detail::sp_typeinfo_ const & ti ) const BOOST_SP_NOEXCEPT
     {
         return pn.get_local_deleter( ti );
     }
@@ -1008,7 +1017,7 @@ namespace detail
 
 template<class D, class T> D * basic_get_deleter( shared_ptr<T> const & p ) BOOST_SP_NOEXCEPT
 {
-    return static_cast<D *>( p._internal_get_deleter(BOOST_SP_TYPEID(D)) );
+    return static_cast<D *>( p._internal_get_deleter(BOOST_SP_TYPEID_(D)) );
 }
 
 template<class D, class T> D * basic_get_local_deleter( D *, shared_ptr<T> const & p ) BOOST_SP_NOEXCEPT;
@@ -1155,6 +1164,25 @@ template< class T > std::size_t hash_value( boost::shared_ptr<T> const & p ) BOO
 
 } // namespace boost
 
+// std::hash
+
+#if !defined(BOOST_NO_CXX11_HDR_FUNCTIONAL)
+
+namespace std
+{
+
+template<class T> struct hash< ::boost::shared_ptr<T> >
+{
+    std::size_t operator()( ::boost::shared_ptr<T> const & p ) const BOOST_SP_NOEXCEPT
+    {
+        return std::hash< typename ::boost::shared_ptr<T>::element_type* >()( p.get() );
+    }
+};
+
+} // namespace std
+
+#endif // #if !defined(BOOST_NO_CXX11_HDR_FUNCTIONAL)
+
 #include <boost/smart_ptr/detail/local_sp_deleter.hpp>
 
 namespace boost
@@ -1165,16 +1193,23 @@ namespace detail
 
 template<class D, class T> D * basic_get_local_deleter( D *, shared_ptr<T> const & p ) BOOST_SP_NOEXCEPT
 {
-    return static_cast<D *>( p._internal_get_local_deleter( BOOST_SP_TYPEID(local_sp_deleter<D>) ) );
+    return static_cast<D *>( p._internal_get_local_deleter( BOOST_SP_TYPEID_(local_sp_deleter<D>) ) );
 }
 
 template<class D, class T> D const * basic_get_local_deleter( D const *, shared_ptr<T> const & p ) BOOST_SP_NOEXCEPT
 {
-    return static_cast<D *>( p._internal_get_local_deleter( BOOST_SP_TYPEID(local_sp_deleter<D>) ) );
+    return static_cast<D *>( p._internal_get_local_deleter( BOOST_SP_TYPEID_(local_sp_deleter<D>) ) );
 }
 
 } // namespace detail
 
+#if defined(__cpp_deduction_guides)
+
+template<class T> shared_ptr( weak_ptr<T> ) -> shared_ptr<T>;
+template<class T, class D> shared_ptr( std::unique_ptr<T, D> ) -> shared_ptr<T>;
+
+#endif
+
 } // namespace boost
 
 #if defined( BOOST_SP_DISABLE_DEPRECATED )

include/boost/smart_ptr/weak_ptr.hpp

@@ -13,10 +13,11 @@
 //  See http://www.boost.org/libs/smart_ptr/ for documentation.
 //
 
-#include <memory> // boost.TR1 include order fix
 #include <boost/smart_ptr/detail/shared_count.hpp>
 #include <boost/smart_ptr/shared_ptr.hpp>
 #include <boost/smart_ptr/detail/sp_noexcept.hpp>
+#include <memory>
+#include <cstddef>
 
 namespace boost
 {
@@ -137,6 +138,23 @@ public:
         boost::detail::sp_assert_convertible< Y, T >();
     }
 
+    // aliasing
+    template<class Y> weak_ptr(shared_ptr<Y> const & r, element_type * p) BOOST_SP_NOEXCEPT: px( p ), pn( r.pn )
+    {
+    }
+
+    template<class Y> weak_ptr(weak_ptr<Y> const & r, element_type * p) BOOST_SP_NOEXCEPT: px( p ), pn( r.pn )
+    {
+    }
+
+#if !defined( BOOST_NO_CXX11_RVALUE_REFERENCES )
+
+    template<class Y> weak_ptr(weak_ptr<Y> && r, element_type * p) BOOST_SP_NOEXCEPT: px( p ), pn( std::move( r.pn ) )
+    {
+    }
+
+#endif
+
 #if !defined(BOOST_MSVC) || (BOOST_MSVC >= 1300)
 
     template<class Y>
@@ -194,6 +212,11 @@ public:
         return pn.empty();
     }
 
+    bool empty() const BOOST_SP_NOEXCEPT // extension, not in std::weak_ptr
+    {
+        return pn.empty();
+    }
+
     void reset() BOOST_SP_NOEXCEPT
     {
         this_type().swap(*this);
@@ -205,13 +228,6 @@ public:
         pn.swap(other.pn);
     }
 
-    template<typename Y>
-    void _internal_aliasing_assign(weak_ptr<Y> const & r, element_type * px2) BOOST_SP_NOEXCEPT
-    {
-        px = px2;
-        pn = r.pn;
-    }
-
     template<class Y> bool owner_before( weak_ptr<Y> const & rhs ) const BOOST_SP_NOEXCEPT
     {
         return pn < rhs.pn;
@@ -222,6 +238,21 @@ public:
         return pn < rhs.pn;
     }
 
+    template<class Y> bool owner_equals( weak_ptr<Y> const & rhs ) const BOOST_SP_NOEXCEPT
+    {
+        return pn == rhs.pn;
+    }
+
+    template<class Y> bool owner_equals( shared_ptr<Y> const & rhs ) const BOOST_SP_NOEXCEPT
+    {
+        return pn == rhs.pn;
+    }
+
+    std::size_t owner_hash_value() const BOOST_SP_NOEXCEPT
+    {
+        return pn.hash_value();
+    }
+
 // Tasteless as this may seem, making all members public allows member templates
 // to work in the absence of member template friends. (Matthew Langston)
 
@@ -249,6 +280,46 @@ template<class T> void swap(weak_ptr<T> & a, weak_ptr<T> & b) BOOST_SP_NOEXCEPT
     a.swap(b);
 }
 
+#if defined(__cpp_deduction_guides)
+
+template<class T> weak_ptr( shared_ptr<T> ) -> weak_ptr<T>;
+
+#endif
+
+// hash_value
+
+template< class T > std::size_t hash_value( boost::weak_ptr<T> const & p ) BOOST_SP_NOEXCEPT
+{
+    return p.owner_hash_value();
+}
+
 } // namespace boost
 
+// std::hash, std::equal_to
+
+namespace std
+{
+
+#if !defined(BOOST_NO_CXX11_HDR_FUNCTIONAL)
+
+template<class T> struct hash< ::boost::weak_ptr<T> >
+{
+    std::size_t operator()( ::boost::weak_ptr<T> const & p ) const BOOST_SP_NOEXCEPT
+    {
+        return p.owner_hash_value();
+    }
+};
+
+#endif // #if !defined(BOOST_NO_CXX11_HDR_FUNCTIONAL)
+
+template<class T> struct equal_to< ::boost::weak_ptr<T> >
+{
+    bool operator()( ::boost::weak_ptr<T> const & a, ::boost::weak_ptr<T> const & b ) const BOOST_SP_NOEXCEPT
+    {
+        return a.owner_equals( b );
+    }
+};
+
+} // namespace std
+
 #endif  // #ifndef BOOST_SMART_PTR_WEAK_PTR_HPP_INCLUDED

test/CMakeLists.txt

@@ -0,0 +1,15 @@
+# Copyright 2018, 2019 Peter Dimov
+# Distributed under the Boost Software License, Version 1.0.
+# See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt
+
+include(BoostTestJamfile OPTIONAL RESULT_VARIABLE HAVE_BOOST_TEST)
+
+if(HAVE_BOOST_TEST)
+
+# for lw_thread_test.cpp
+set(THREADS_PREFER_PTHREAD_FLAG ON)
+find_package(Threads)
+
+boost_test_jamfile(FILE Jamfile LINK_LIBRARIES Boost::smart_ptr Boost::core Boost::align Boost::atomic Boost::container_hash Boost::bind Threads::Threads)
+
+endif()

test/Jamfile

@@ -57,10 +57,11 @@ run yield_k_test.cpp : : : <threading>multi : yield_k_test.mt ;
 run spinlock_test.cpp ;
 run spinlock_try_test.cpp ;
 run spinlock_try_test.cpp : : : <threading>multi : spinlock_try_test.mt ;
-run spinlock_pool_test.cpp : : :
-    # msvc-8.0, 9.0 optimizer codegen bug for `x % 41`
-    <toolset>msvc-8.0,<variant>release:<build>no
-    <toolset>msvc-9.0,<variant>release:<build>no ;
+run spinlock_pool_test.cpp
+  : : :
+  # msvc-8.0, 9.0 optimizer codegen bug for `x % 41`
+  <toolset>msvc-8.0,<variant>release:<build>no
+  <toolset>msvc-9.0,<variant>release:<build>no ;
 
 run make_shared_test.cpp ;
 run make_shared_move_emulation_test.cpp ;
@@ -78,7 +79,10 @@ run sp_recursive_assign_test.cpp ;
 run sp_recursive_assign2_test.cpp ;
 run sp_recursive_assign_rv_test.cpp ;
 run sp_recursive_assign2_rv_test.cpp ;
-compile-fail auto_ptr_lv_fail.cpp : <toolset>gcc-4.4.7:<build>no ;
+
+compile-fail auto_ptr_lv_fail.cpp
+  : <toolset>gcc-4.4.7:<build>no ;
+
 run atomic_count_test2.cpp ;
 run sp_typeinfo_test.cpp ;
 compile make_shared_fp_test.cpp ;
@@ -158,23 +162,33 @@ compile-fail array_fail_dereference.cpp ;
 compile-fail array_fail_member_access.cpp ;
 compile-fail array_fail_array_access.cpp ;
 
-run make_shared_array_test.cpp ;
-run make_shared_arrays_test.cpp ; # <cxxflags>-fno-deduce-init-list no longer needed for gcc-4.6
-run make_shared_array_throws_test.cpp ;
-run make_shared_array_esft_test.cpp ;
-run make_shared_array_noinit_test.cpp ;
-run make_shared_array_value_test.cpp ;
+run make_shared_array_test.cpp
+  : : : <toolset>msvc-8.0:<build>no ;
+run make_shared_arrays_test.cpp ;
+run make_shared_array_throws_test.cpp
+  : : : <toolset>msvc-8.0:<build>no ;
+run make_shared_array_esft_test.cpp
+  : : : <toolset>msvc-8.0:<build>no ;
+run make_shared_array_noinit_test.cpp
+  : : : <toolset>msvc-8.0:<build>no ;
+run make_shared_array_value_test.cpp
+  : : : <toolset>msvc-8.0:<build>no ;
 run allocate_shared_array_test.cpp ;
-run allocate_shared_arrays_test.cpp ; # <cxxflags>-fno-deduce-init-list no longer needed for gcc-4.6
-run allocate_shared_array_throws_test.cpp ;
-run allocate_shared_array_esft_test.cpp ;
-run allocate_shared_array_noinit_test.cpp ;
-run allocate_shared_array_value_test.cpp ;
+run allocate_shared_arrays_test.cpp ;
+run allocate_shared_array_throws_test.cpp
+  : : : <toolset>msvc-8.0:<build>no ;
+run allocate_shared_array_esft_test.cpp
+  : : : <toolset>msvc-8.0:<build>no ;
+run allocate_shared_array_noinit_test.cpp
+  : : : <toolset>msvc-8.0:<build>no ;
+run allocate_shared_array_value_test.cpp
+  : : : <toolset>msvc-8.0:<build>no ;
 run allocate_shared_array_construct_test.cpp ;
 
 run make_unique_test.cpp ;
 run make_unique_args_test.cpp ;
-run make_unique_value_test.cpp : : : <toolset>gcc-4.6:<cxxflags>-fno-deduce-init-list ;
+run make_unique_value_test.cpp
+  : : : <toolset>gcc-4.6:<cxxflags>-fno-deduce-init-list ;
 run make_unique_noinit_test.cpp ;
 run make_unique_throws_test.cpp ;
 run make_unique_array_test.cpp ;
@@ -236,7 +250,8 @@ run shared_ptr_fn_test.cpp ;
 run get_deleter_test2.cpp ;
 run get_deleter_test3.cpp ;
 run get_deleter_array_test2.cpp ;
-run get_deleter_array_test3.cpp ;
+run get_deleter_array_test3.cpp
+  : : : <toolset>msvc-8.0:<build>no ;
 
 run sp_convertible_test2.cpp ;
 
@@ -258,13 +273,15 @@ run allocate_local_shared_test.cpp ;
 run allocate_local_shared_esft_test.cpp ;
 
 run make_local_shared_array_test.cpp ;
-run make_local_shared_arrays_test.cpp : : : <toolset>gcc-4.6.3_0x:<cxxflags>-fno-deduce-init-list ;
+run make_local_shared_arrays_test.cpp
+  : : : <toolset>gcc-4.6.3_0x:<cxxflags>-fno-deduce-init-list ;
 run make_local_shared_array_throws_test.cpp ;
 run make_local_shared_array_esft_test.cpp ;
 run make_local_shared_array_noinit_test.cpp ;
 run make_local_shared_array_value_test.cpp ;
 run allocate_local_shared_array_test.cpp ;
-run allocate_local_shared_arrays_test.cpp : : : <toolset>gcc-4.6.3_0x:<cxxflags>-fno-deduce-init-list ;
+run allocate_local_shared_arrays_test.cpp
+  : : : <toolset>gcc-4.6.3_0x:<cxxflags>-fno-deduce-init-list ;
 run allocate_local_shared_array_throws_test.cpp ;
 run allocate_local_shared_array_esft_test.cpp ;
 run allocate_local_shared_array_noinit_test.cpp ;
@@ -275,9 +292,11 @@ run local_sp_fn_test.cpp ;
 run lsp_convertible_test.cpp ;
 run lsp_convertible_test2.cpp ;
 
-run make_shared_array_tmp_test.cpp ;
+run make_shared_array_tmp_test.cpp
+  : : : <toolset>msvc-8.0:<build>no ;
 
-run lw_thread_test.cpp : : : <threading>multi ;
+run lw_thread_test.cpp
+  : : : <threading>multi ;
 
 compile sp_windows_h_test.cpp ;
 compile spinlock_windows_h_test.cpp ;
@@ -306,3 +325,83 @@ run abi_test_main.cpp abi_test_nt : : : : abi_test_mt_nt ;
 
 run abi_test_main.cpp abi_test_mt/<cxxstd>0x : : : <cxxstd>98 : abi_test_03_11 ;
 run abi_test_main.cpp abi_test_mt/<cxxstd>98 : : : <cxxstd>0x : abi_test_11_03 ;
+
+run weak_ptr_alias_test.cpp ;
+run weak_ptr_alias_move_test.cpp ;
+
+run sp_typeinfo_test.cpp : : : <rtti>off : sp_typeinfo_test_no_rtti ;
+
+run get_deleter_test.cpp : : : <rtti>off <toolset>gcc-4.4.7,<cxxstd>0x:<build>no : get_deleter_test_no_rtti ;
+run get_deleter_test2.cpp : : : <rtti>off <toolset>gcc-4.4.7,<cxxstd>0x:<build>no : get_deleter_test2_no_rtti ;
+run get_deleter_test3.cpp : : : <rtti>off <toolset>gcc-4.4.7,<cxxstd>0x:<build>no : get_deleter_test3_no_rtti ;
+
+run shared_from_test.cpp ;
+run weak_from_test.cpp ;
+run weak_from_test2.cpp ;
+
+run allocate_unique_aggregate_test.cpp ;
+run allocate_unique_args_test.cpp ;
+run allocate_unique_array_construct_test.cpp ;
+run allocate_unique_array_noinit_test.cpp ;
+run allocate_unique_arrays_test.cpp ;
+run allocate_unique_array_test.cpp ;
+run allocate_unique_array_throws_test.cpp ;
+run allocate_unique_array_value_test.cpp ;
+run allocate_unique_construct_test.cpp ;
+run allocate_unique_noinit_test.cpp ;
+run allocate_unique_test.cpp ;
+run allocate_unique_throws_test.cpp ;
+run allocate_unique_value_test.cpp ;
+
+run sp_guides_test.cpp ;
+run sp_guides_test2.cpp ;
+run wp_guides_test.cpp ;
+
+compile-fail shared_from_fail.cpp ;
+compile-fail weak_from_fail.cpp ;
+
+compile sp_override_test.cpp ;
+compile sp_pedantic_test.cpp
+  : <warnings>pedantic
+    <toolset>msvc:<warnings-as-errors>on
+    <toolset>gcc:<warnings-as-errors>on
+    <toolset>clang:<warnings-as-errors>on ;
+
+run sp_owner_before_test.cpp ;
+run sp_owner_equals_test.cpp ;
+run lsp_owner_before_test.cpp ;
+run lsp_owner_equals_test.cpp ;
+
+run owner_equal_to_test.cpp ;
+run owner_equal_to_test2.cpp ;
+
+run owner_less_test2.cpp ;
+
+run ip_hash_test2.cpp ;
+run sp_hash_test4.cpp ;
+run lsp_hash_test.cpp ;
+run lsp_hash_test2.cpp ;
+
+run atomic_count_mt_test.cpp
+  : : : <threading>multi ;
+
+run spinlock_mt_test.cpp
+  : : : <threading>multi ;
+
+run spinlock_pool_mt_test.cpp
+  : : : <threading>multi ;
+
+run shared_ptr_mt_test.cpp
+  : : : <threading>multi ;
+
+run weak_ptr_mt_test.cpp
+  : : : <threading>multi ;
+
+compile sp_report_implementation.cpp ;
+
+run sp_owner_hash_value_test.cpp ;
+
+run wp_hash_test.cpp ;
+run wp_hash_test2.cpp ;
+
+run wp_unordered_test.cpp ;

test/allocate_shared_alloc11_test.cpp

@@ -8,7 +8,7 @@
 // See accompanying file LICENSE_1_0.txt or copy at
 // http://www.boost.org/LICENSE_1_0.txt
 
-#include <boost/detail/lightweight_test.hpp>
+#include <boost/core/lightweight_test.hpp>
 #include <boost/make_shared.hpp>
 #include <boost/shared_ptr.hpp>
 #include <boost/weak_ptr.hpp>

test/allocate_shared_construct11_test.cpp

@@ -8,7 +8,7 @@
 // See accompanying file LICENSE_1_0.txt or copy at
 // http://www.boost.org/LICENSE_1_0.txt
 
-#include <boost/detail/lightweight_test.hpp>
+#include <boost/core/lightweight_test.hpp>
 #include <boost/make_shared.hpp>
 #include <boost/shared_ptr.hpp>
 #include <boost/weak_ptr.hpp>

test/allocate_shared_esft_test.cpp

@@ -6,7 +6,7 @@
 //  See accompanying file LICENSE_1_0.txt or copy at
 //  http://www.boost.org/LICENSE_1_0.txt
 
-#include <boost/detail/lightweight_test.hpp>
+#include <boost/core/lightweight_test.hpp>
 #include <boost/make_shared.hpp>
 #include <boost/shared_ptr.hpp>
 #include <boost/enable_shared_from_this.hpp>

test/allocate_shared_test.cpp

@@ -6,7 +6,7 @@
 // See accompanying file LICENSE_1_0.txt or copy at
 // http://www.boost.org/LICENSE_1_0.txt
 
-#include <boost/detail/lightweight_test.hpp>
+#include <boost/core/lightweight_test.hpp>
 #include <boost/make_shared.hpp>
 #include <boost/shared_ptr.hpp>
 #include <boost/weak_ptr.hpp>

test/allocate_unique_aggregate_test.cpp

@@ -0,0 +1,84 @@
+/*
+Copyright 2019 Glen Joseph Fernandes
+(glenjofe@gmail.com)
+
+Distributed under the Boost Software License, Version 1.0.
+(http://www.boost.org/LICENSE_1_0.txt)
+*/
+#include <boost/config.hpp>
+#if (!defined(BOOST_LIBSTDCXX_VERSION) || \
+    BOOST_LIBSTDCXX_VERSION >= 46000) && \
+    !defined(BOOST_NO_CXX11_SMART_PTR) && \
+    !defined(BOOST_NO_CXX11_UNIFIED_INITIALIZATION_SYNTAX)
+#include <boost/smart_ptr/allocate_unique.hpp>
+#include <boost/core/lightweight_test.hpp>
+
+template<class T = void>
+struct creator {
+    typedef T value_type;
+    typedef T* pointer;
+
+    template<class U>
+    struct rebind {
+        typedef creator<U> other;
+    };
+
+    creator() { }
+
+    template<class U>
+    creator(const creator<U>&) { }
+
+    T* allocate(std::size_t size) {
+        return static_cast<T*>(::operator new(sizeof(T) * size));
+    }
+
+    void deallocate(T* ptr, std::size_t) {
+        ::operator delete(ptr);
+    }
+};
+
+template<class T, class U>
+inline bool
+operator==(const creator<T>&, const creator<U>&)
+{
+    return true;
+}
+
+template<class T, class U>
+inline bool
+operator!=(const creator<T>&, const creator<U>&)
+{
+    return false;
+}
+
+struct type {
+    int x;
+    int y;
+};
+
+int main()
+{
+    {
+        std::unique_ptr<type,
+            boost::alloc_deleter<type, creator<type> > > result =
+            boost::allocate_unique<type>(creator<type>(), { 1, 2 });
+        BOOST_TEST(result.get() != 0);
+        BOOST_TEST(result->x == 1);
+        BOOST_TEST(result->y == 2);
+    }
+    {
+        std::unique_ptr<const type,
+            boost::alloc_deleter<const type, creator<> > > result =
+            boost::allocate_unique<const type>(creator<>(), { 1, 2 });
+        BOOST_TEST(result.get() != 0);
+        BOOST_TEST(result->x == 1);
+        BOOST_TEST(result->y == 2);
+    }
+    return boost::report_errors();
+}
+#else
+int main()
+{
+    return 0;
+}
+#endif

test/allocate_unique_args_test.cpp

@@ -0,0 +1,111 @@
+/*
+Copyright 2019 Glen Joseph Fernandes
+(glenjofe@gmail.com)
+
+Distributed under the Boost Software License, Version 1.0.
+(http://www.boost.org/LICENSE_1_0.txt)
+*/
+#include <boost/config.hpp>
+#if (!defined(BOOST_LIBSTDCXX_VERSION) || \
+    BOOST_LIBSTDCXX_VERSION >= 46000) && \
+    !defined(BOOST_NO_CXX11_SMART_PTR) && \
+    !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)
+#include <boost/smart_ptr/allocate_unique.hpp>
+#include <boost/core/lightweight_test.hpp>
+
+template<class T = void>
+struct creator {
+    typedef T value_type;
+    typedef T* pointer;
+
+    template<class U>
+    struct rebind {
+        typedef creator<U> other;
+    };
+
+    creator() { }
+
+    template<class U>
+    creator(const creator<U>&) { }
+
+    T* allocate(std::size_t size) {
+        return static_cast<T*>(::operator new(sizeof(T) * size));
+    }
+
+    void deallocate(T* ptr, std::size_t) {
+        ::operator delete(ptr);
+    }
+};
+
+template<class T, class U>
+inline bool
+operator==(const creator<T>&, const creator<U>&)
+{
+    return true;
+}
+
+template<class T, class U>
+inline bool
+operator!=(const creator<T>&, const creator<U>&)
+{
+    return false;
+}
+
+class type {
+public:
+    static unsigned instances;
+
+    type(int v1, int v2, int v3, int v4, int v5)
+        : sum_(v1 + v2 + v3 + v4 + v5) {
+        ++instances;
+    }
+
+    ~type() {
+        --instances;
+    }
+
+    int sum() const {
+        return sum_;
+    }
+
+private:
+    int sum_;
+
+    type(const type&);
+    type& operator=(const type&);
+};
+
+unsigned type::instances = 0;
+
+int main()
+{
+    BOOST_TEST(type::instances == 0);
+    {
+        std::unique_ptr<type,
+            boost::alloc_deleter<type, creator<type> > > result =
+            boost::allocate_unique<type>(creator<type>(), 1, 2, 3, 4, 5);
+        BOOST_TEST(result.get() != 0);
+        BOOST_TEST(type::instances == 1);
+        BOOST_TEST(result->sum() == 15);
+        result.reset();
+        BOOST_TEST(type::instances == 0);
+    }
+    BOOST_TEST(type::instances == 0);
+    {
+        std::unique_ptr<const type,
+            boost::alloc_deleter<const type, creator<> > > result =
+            boost::allocate_unique<const type>(creator<>(), 1, 2, 3, 4, 5);
+        BOOST_TEST(result.get() != 0);
+        BOOST_TEST(type::instances == 1);
+        BOOST_TEST(result->sum() == 15);
+        result.reset();
+        BOOST_TEST(type::instances == 0);
+    }
+    return boost::report_errors();
+}
+#else
+int main()
+{
+    return 0;
+}
+#endif

test/allocate_unique_array_construct_test.cpp

@@ -0,0 +1,166 @@
+/*
+Copyright 2019 Glen Joseph Fernandes
+(glenjofe@gmail.com)
+
+Distributed under the Boost Software License, Version 1.0.
+(http://www.boost.org/LICENSE_1_0.txt)
+*/
+#include <boost/config.hpp>
+#if (!defined(BOOST_LIBSTDCXX_VERSION) || \
+    BOOST_LIBSTDCXX_VERSION >= 48000) && \
+    !defined(BOOST_NO_CXX11_SMART_PTR) && \
+    !defined(BOOST_NO_CXX11_ALLOCATOR)
+#include <boost/smart_ptr/allocate_unique.hpp>
+#include <boost/core/lightweight_test.hpp>
+
+struct allow { };
+
+template<class T = void>
+struct creator {
+    typedef T value_type;
+
+    template<class U>
+    struct rebind {
+        typedef creator<U> other;
+    };
+
+    creator() { }
+
+    template<class U>
+    creator(const creator<U>&) { }
+
+    T* allocate(std::size_t size) {
+        return static_cast<T*>(::operator new(sizeof(T) * size));
+    }
+
+    void deallocate(T* ptr, std::size_t) {
+        ::operator delete(ptr);
+    }
+
+    template<class U>
+    void construct(U* ptr) {
+        ::new(static_cast<void*>(ptr)) U(allow());
+    }
+
+    template<class U>
+    void destroy(U* ptr) {
+        ptr->~U();
+    }
+
+};
+
+template<class T, class U>
+inline bool
+operator==(const creator<T>&, const creator<U>&)
+{
+    return true;
+}
+
+template<class T, class U>
+inline bool
+operator!=(const creator<T>&, const creator<U>&)
+{
+    return false;
+}
+
+class type {
+public:
+    static unsigned instances;
+
+    explicit type(allow) {
+        ++instances;
+    }
+
+    ~type() {
+        --instances;
+    }
+
+private:
+    type(const type&);
+    type& operator=(const type&);
+};
+
+unsigned type::instances = 0;
+
+int main()
+{
+    {
+        std::unique_ptr<type[],
+            boost::alloc_deleter<type[], creator<type> > > result =
+            boost::allocate_unique<type[]>(creator<type>(), 3);
+        BOOST_TEST(result.get() != 0);
+        BOOST_TEST(type::instances == 3);
+        result.reset();
+        BOOST_TEST(type::instances == 0);
+    }
+    {
+        std::unique_ptr<type[],
+            boost::alloc_deleter<type[3], creator<type> > > result =
+            boost::allocate_unique<type[3]>(creator<type>());
+        BOOST_TEST(result.get() != 0);
+        BOOST_TEST(type::instances == 3);
+        result.reset();
+        BOOST_TEST(type::instances == 0);
+    }
+    {
+        std::unique_ptr<type[][2],
+            boost::alloc_deleter<type[][2], creator<> > > result =
+            boost::allocate_unique<type[][2]>(creator<>(), 2);
+        BOOST_TEST(result.get() != 0);
+        BOOST_TEST(type::instances == 4);
+        result.reset();
+        BOOST_TEST(type::instances == 0);
+    }
+    {
+        std::unique_ptr<type[][2],
+            boost::alloc_deleter<type[2][2], creator<> > > result =
+            boost::allocate_unique<type[2][2]>(creator<>());
+        BOOST_TEST(result.get() != 0);
+        BOOST_TEST(type::instances == 4);
+        result.reset();
+        BOOST_TEST(type::instances == 0);
+    }
+    {
+        std::unique_ptr<const type[],
+            boost::alloc_deleter<const type[], creator<> > > result =
+            boost::allocate_unique<const type[]>(creator<>(), 3);
+        BOOST_TEST(result.get() != 0);
+        BOOST_TEST(type::instances == 3);
+        result.reset();
+        BOOST_TEST(type::instances == 0);
+    }
+    {
+        std::unique_ptr<const type[],
+            boost::alloc_deleter<const type[3], creator<> > > result =
+            boost::allocate_unique<const type[3]>(creator<>());
+        BOOST_TEST(result.get() != 0);
+        BOOST_TEST(type::instances == 3);
+        result.reset();
+        BOOST_TEST(type::instances == 0);
+    }
+    {
+        std::unique_ptr<const type[][2],
+            boost::alloc_deleter<const type[][2], creator<> > > result =
+            boost::allocate_unique<const type[][2]>(creator<>(), 2);
+        BOOST_TEST(result.get() != 0);
+        BOOST_TEST(type::instances == 4);
+        result.reset();
+        BOOST_TEST(type::instances == 0);
+    }
+    {
+        std::unique_ptr<const type[][2],
+            boost::alloc_deleter<const type[2][2], creator<> > > result =
+            boost::allocate_unique<const type[2][2]>(creator<>());
+        BOOST_TEST(result.get() != 0);
+        BOOST_TEST(type::instances == 4);
+        result.reset();
+        BOOST_TEST(type::instances == 0);
+    }
+    return boost::report_errors();
+}
+#else
+int main()
+{
+    return 0;
+}
+#endif

test/allocate_unique_array_noinit_test.cpp

@@ -0,0 +1,228 @@
+/*
+Copyright 2019 Glen Joseph Fernandes
+(glenjofe@gmail.com)
+
+Distributed under the Boost Software License, Version 1.0.
+(http://www.boost.org/LICENSE_1_0.txt)
+*/
+#include <boost/config.hpp>
+#if (!defined(BOOST_LIBSTDCXX_VERSION) || \
+    BOOST_LIBSTDCXX_VERSION >= 48000) && \
+    !defined(BOOST_NO_CXX11_SMART_PTR)
+#include <boost/smart_ptr/allocate_unique.hpp>
+#include <boost/core/lightweight_test.hpp>
+
+template<class T = void>
+struct creator {
+    typedef T value_type;
+    typedef T* pointer;
+
+    template<class U>
+    struct rebind {
+        typedef creator<U> other;
+    };
+
+    creator() { }
+
+    template<class U>
+    creator(const creator<U>&) { }
+
+    T* allocate(std::size_t size) {
+        return static_cast<T*>(::operator new(sizeof(T) * size));
+    }
+
+    void deallocate(T* ptr, std::size_t) {
+        ::operator delete(ptr);
+    }
+};
+
+template<class T, class U>
+inline bool
+operator==(const creator<T>&, const creator<U>&)
+{
+    return true;
+}
+
+template<class T, class U>
+inline bool
+operator!=(const creator<T>&, const creator<U>&)
+{
+    return false;
+}
+
+class type {
+public:
+    static unsigned instances;
+
+    type()
+        : value_(0.0) {
+        ++instances;
+    }
+
+    ~type() {
+        --instances;
+    }
+
+    void set(long double value) {
+        value_ = value;
+    }
+
+    long double get() const {
+        return value_;
+    }
+
+private:
+    type(const type&);
+    type& operator=(const type&);
+
+    long double value_;
+};
+
+unsigned type::instances = 0;
+
+int main()
+{
+    {
+        std::unique_ptr<int[],
+            boost::alloc_deleter<int[],
+            boost::noinit_adaptor<creator<int> > > > result =
+            boost::allocate_unique_noinit<int[]>(creator<int>(), 3);
+        BOOST_TEST(result.get() != 0);
+    }
+    {
+        std::unique_ptr<int[],
+            boost::alloc_deleter<int[3],
+            boost::noinit_adaptor<creator<int> > > > result =
+            boost::allocate_unique_noinit<int[3]>(creator<int>());
+        BOOST_TEST(result.get() != 0);
+    }
+    {
+        std::unique_ptr<int[][2],
+            boost::alloc_deleter<int[][2],
+            boost::noinit_adaptor<creator<> > > > result =
+            boost::allocate_unique_noinit<int[][2]>(creator<>(), 2);
+        BOOST_TEST(result.get() != 0);
+    }
+    {
+        std::unique_ptr<int[][2],
+            boost::alloc_deleter<int[2][2],
+            boost::noinit_adaptor<creator<> > > > result =
+            boost::allocate_unique_noinit<int[2][2]>(creator<>());
+        BOOST_TEST(result.get() != 0);
+    }
+    {
+        std::unique_ptr<const int[],
+            boost::alloc_deleter<const int[],
+            boost::noinit_adaptor<creator<> > > > result =
+            boost::allocate_unique_noinit<const int[]>(creator<>(), 3);
+        BOOST_TEST(result.get() != 0);
+    }
+    {
+        std::unique_ptr<const int[],
+            boost::alloc_deleter<const int[3],
+            boost::noinit_adaptor<creator<> > > > result =
+            boost::allocate_unique_noinit<const int[3]>(creator<>());
+        BOOST_TEST(result.get() != 0);
+    }
+    {
+        std::unique_ptr<const int[][2],
+            boost::alloc_deleter<const int[][2],
+            boost::noinit_adaptor<creator<> > > > result =
+            boost::allocate_unique_noinit<const int[][2]>(creator<>(), 2);
+        BOOST_TEST(result.get() != 0);
+    }
+    {
+        std::unique_ptr<const int[][2],
+            boost::alloc_deleter<const int[2][2],
+            boost::noinit_adaptor<creator<> > > > result =
+            boost::allocate_unique_noinit<const int[2][2]>(creator<>());
+        BOOST_TEST(result.get() != 0);
+    }
+    {
+        std::unique_ptr<type[],
+            boost::alloc_deleter<type[],
+            boost::noinit_adaptor<creator<type> > > > result =
+            boost::allocate_unique_noinit<type[]>(creator<type>(), 3);
+        BOOST_TEST(result.get() != 0);
+        BOOST_TEST(type::instances == 3);
+        result.reset();
+        BOOST_TEST(type::instances == 0);
+    }
+    {
+        std::unique_ptr<type[],
+            boost::alloc_deleter<type[3],
+            boost::noinit_adaptor<creator<type> > > > result =
+            boost::allocate_unique_noinit<type[3]>(creator<type>());
+        BOOST_TEST(result.get() != 0);
+        BOOST_TEST(type::instances == 3);
+        result.reset();
+        BOOST_TEST(type::instances == 0);
+    }
+    {
+        std::unique_ptr<type[][2],
+            boost::alloc_deleter<type[][2],
+            boost::noinit_adaptor<creator<> > > > result =
+            boost::allocate_unique_noinit<type[][2]>(creator<>(), 2);
+        BOOST_TEST(result.get() != 0);
+        BOOST_TEST(type::instances == 4);
+        result.reset();
+        BOOST_TEST(type::instances == 0);
+    }
+    {
+        std::unique_ptr<type[][2],
+            boost::alloc_deleter<type[2][2],
+            boost::noinit_adaptor<creator<> > > > result =
+            boost::allocate_unique_noinit<type[2][2]>(creator<>());
+        BOOST_TEST(result.get() != 0);
+        BOOST_TEST(type::instances == 4);
+        result.reset();
+        BOOST_TEST(type::instances == 0);
+    }
+    {
+        std::unique_ptr<const type[],
+            boost::alloc_deleter<const type[],
+            boost::noinit_adaptor<creator<> > > > result =
+            boost::allocate_unique_noinit<const type[]>(creator<>(), 3);
+        BOOST_TEST(result.get() != 0);
+        BOOST_TEST(type::instances == 3);
+        result.reset();
+        BOOST_TEST(type::instances == 0);
+    }
+    {
+        std::unique_ptr<const type[],
+            boost::alloc_deleter<const type[3],
+            boost::noinit_adaptor<creator<> > > > result =
+            boost::allocate_unique_noinit<const type[3]>(creator<>());
+        BOOST_TEST(result.get() != 0);
+        BOOST_TEST(type::instances == 3);
+        result.reset();
+        BOOST_TEST(type::instances == 0);
+    }
+    {
+        std::unique_ptr<const type[][2],
+            boost::alloc_deleter<const type[][2],
+            boost::noinit_adaptor<creator<> > > > result =
+            boost::allocate_unique_noinit<const type[][2]>(creator<>(), 2);
+        BOOST_TEST(result.get() != 0);
+        BOOST_TEST(type::instances == 4);
+        result.reset();
+        BOOST_TEST(type::instances == 0);
+    }
+    {
+        std::unique_ptr<const type[][2],
+            boost::alloc_deleter<const type[2][2],
+            boost::noinit_adaptor<creator<> > > > result =
+            boost::allocate_unique_noinit<const type[2][2]>(creator<>());
+        BOOST_TEST(result.get() != 0);
+        BOOST_TEST(type::instances == 4);
+        result.reset();
+        BOOST_TEST(type::instances == 0);
+    }
+    return boost::report_errors();
+}
+#else
+int main()
+{
+    return 0;
+}
+#endif

test/allocate_unique_array_test.cpp

@@ -0,0 +1,240 @@
+/*
+Copyright 2019 Glen Joseph Fernandes
+(glenjofe@gmail.com)
+
+Distributed under the Boost Software License, Version 1.0.
+(http://www.boost.org/LICENSE_1_0.txt)
+*/
+#include <boost/config.hpp>
+#if (!defined(BOOST_LIBSTDCXX_VERSION) || \
+    BOOST_LIBSTDCXX_VERSION >= 48000) && \
+    !defined(BOOST_NO_CXX11_SMART_PTR)
+#include <boost/smart_ptr/allocate_unique.hpp>
+#include <boost/core/lightweight_test.hpp>
+
+template<class T = void>
+struct creator {
+    typedef T value_type;
+    typedef T* pointer;
+
+    template<class U>
+    struct rebind {
+        typedef creator<U> other;
+    };
+
+    creator() { }
+
+    template<class U>
+    creator(const creator<U>&) { }
+
+    T* allocate(std::size_t size) {
+        return static_cast<T*>(::operator new(sizeof(T) * size));
+    }
+
+    void deallocate(T* ptr, std::size_t) {
+        ::operator delete(ptr);
+    }
+};
+
+template<class T, class U>
+inline bool
+operator==(const creator<T>&, const creator<U>&)
+{
+    return true;
+}
+
+template<class T, class U>
+inline bool
+operator!=(const creator<T>&, const creator<U>&)
+{
+    return false;
+}
+
+class type {
+public:
+    static unsigned instances;
+
+    type()
+        : value_(0.0) {
+        ++instances;
+    }
+
+    ~type() {
+        --instances;
+    }
+
+    void set(long double value) {
+        value_ = value;
+    }
+
+    long double get() const {
+        return value_;
+    }
+
+private:
+    type(const type&);
+    type& operator=(const type&);
+
+    long double value_;
+};
+
+unsigned type::instances = 0;
+
+int main()
+{
+    {
+        std::unique_ptr<int[],
+            boost::alloc_deleter<int[], creator<int> > > result =
+            boost::allocate_unique<int[]>(creator<int>(), 3);
+        BOOST_TEST(result.get() != 0);
+        BOOST_TEST(result[0] == 0);
+        BOOST_TEST(result[1] == 0);
+        BOOST_TEST(result[2] == 0);
+    }
+    {
+        std::unique_ptr<int[],
+            boost::alloc_deleter<int[3], creator<int> > > result =
+            boost::allocate_unique<int[3]>(creator<int>());
+        BOOST_TEST(result.get() != 0);
+        BOOST_TEST(result[0] == 0);
+        BOOST_TEST(result[1] == 0);
+        BOOST_TEST(result[2] == 0);
+    }
+    {
+        std::unique_ptr<int[][2],
+            boost::alloc_deleter<int[][2], creator<> > > result =
+            boost::allocate_unique<int[][2]>(creator<>(), 2);
+        BOOST_TEST(result.get() != 0);
+        BOOST_TEST(result[0][0] == 0);
+        BOOST_TEST(result[0][1] == 0);
+        BOOST_TEST(result[1][0] == 0);
+        BOOST_TEST(result[1][1] == 0);
+    }
+    {
+        std::unique_ptr<int[][2],
+            boost::alloc_deleter<int[2][2], creator<> > > result =
+            boost::allocate_unique<int[2][2]>(creator<>());
+        BOOST_TEST(result.get() != 0);
+        BOOST_TEST(result[0][0] == 0);
+        BOOST_TEST(result[0][1] == 0);
+        BOOST_TEST(result[1][0] == 0);
+        BOOST_TEST(result[1][1] == 0);
+    }
+    {
+        std::unique_ptr<const int[],
+            boost::alloc_deleter<const int[], creator<> > > result =
+            boost::allocate_unique<const int[]>(creator<>(), 3);
+        BOOST_TEST(result.get() != 0);
+        BOOST_TEST(result[0] == 0);
+        BOOST_TEST(result[1] == 0);
+        BOOST_TEST(result[2] == 0);
+    }
+    {
+        std::unique_ptr<const int[],
+            boost::alloc_deleter<const int[3], creator<> > > result =
+            boost::allocate_unique<const int[3]>(creator<>());
+        BOOST_TEST(result.get() != 0);
+        BOOST_TEST(result[0] == 0);
+        BOOST_TEST(result[1] == 0);
+        BOOST_TEST(result[2] == 0);
+    }
+    {
+        std::unique_ptr<const int[][2],
+            boost::alloc_deleter<const int[][2], creator<> > > result =
+            boost::allocate_unique<const int[][2]>(creator<>(), 2);
+        BOOST_TEST(result.get() != 0);
+        BOOST_TEST(result[0][0] == 0);
+        BOOST_TEST(result[0][1] == 0);
+        BOOST_TEST(result[1][0] == 0);
+        BOOST_TEST(result[1][1] == 0);
+    }
+    {
+        std::unique_ptr<const int[][2],
+            boost::alloc_deleter<const int[2][2], creator<> > > result =
+            boost::allocate_unique<const int[2][2]>(creator<>());
+        BOOST_TEST(result.get() != 0);
+        BOOST_TEST(result[0][0] == 0);
+        BOOST_TEST(result[0][1] == 0);
+        BOOST_TEST(result[1][0] == 0);
+        BOOST_TEST(result[1][1] == 0);
+    }
+    {
+        std::unique_ptr<type[],
+            boost::alloc_deleter<type[], creator<type> > > result =
+            boost::allocate_unique<type[]>(creator<type>(), 3);
+        BOOST_TEST(result.get() != 0);
+        BOOST_TEST(type::instances == 3);
+        result.reset();
+        BOOST_TEST(type::instances == 0);
+    }
+    {
+        std::unique_ptr<type[],
+            boost::alloc_deleter<type[3], creator<type> > > result =
+            boost::allocate_unique<type[3]>(creator<type>());
+        BOOST_TEST(result.get() != 0);
+        BOOST_TEST(type::instances == 3);
+        result.reset();
+        BOOST_TEST(type::instances == 0);
+    }
+    {
+        std::unique_ptr<type[][2],
+            boost::alloc_deleter<type[][2], creator<> > > result =
+            boost::allocate_unique<type[][2]>(creator<>(), 2);
+        BOOST_TEST(result.get() != 0);
+        BOOST_TEST(type::instances == 4);
+        result.reset();
+        BOOST_TEST(type::instances == 0);
+    }
+    {
+        std::unique_ptr<type[][2],
+            boost::alloc_deleter<type[2][2], creator<> > > result =
+            boost::allocate_unique<type[2][2]>(creator<>());
+        BOOST_TEST(result.get() != 0);
+        BOOST_TEST(type::instances == 4);
+        result.reset();
+        BOOST_TEST(type::instances == 0);
+    }
+    {
+        std::unique_ptr<const type[],
+            boost::alloc_deleter<const type[], creator<> > > result =
+            boost::allocate_unique<const type[]>(creator<>(), 3);
+        BOOST_TEST(result.get() != 0);
+        BOOST_TEST(type::instances == 3);
+        result.reset();
+        BOOST_TEST(type::instances == 0);
+    }
+    {
+        std::unique_ptr<const type[],
+            boost::alloc_deleter<const type[3], creator<> > > result =
+            boost::allocate_unique<const type[3]>(creator<>());
+        BOOST_TEST(result.get() != 0);
+        BOOST_TEST(type::instances == 3);
+        result.reset();
+        BOOST_TEST(type::instances == 0);
+    }
+    {
+        std::unique_ptr<const type[][2],
+            boost::alloc_deleter<const type[][2], creator<> > > result =
+            boost::allocate_unique<const type[][2]>(creator<>(), 2);
+        BOOST_TEST(result.get() != 0);
+        BOOST_TEST(type::instances == 4);
+        result.reset();
+        BOOST_TEST(type::instances == 0);
+    }
+    {
+        std::unique_ptr<const type[][2],
+            boost::alloc_deleter<const type[2][2], creator<> > > result =
+            boost::allocate_unique<const type[2][2]>(creator<>());
+        BOOST_TEST(result.get() != 0);
+        BOOST_TEST(type::instances == 4);
+        result.reset();
+        BOOST_TEST(type::instances == 0);
+    }
+    return boost::report_errors();
+}
+#else
+int main()
+{
+    return 0;
+}
+#endif

test/allocate_unique_array_throws_test.cpp

@@ -0,0 +1,132 @@
+/*
+Copyright 2019 Glen Joseph Fernandes
+(glenjofe@gmail.com)
+
+Distributed under the Boost Software License, Version 1.0.
+(http://www.boost.org/LICENSE_1_0.txt)
+*/
+#include <boost/config.hpp>
+#if (!defined(BOOST_LIBSTDCXX_VERSION) || \
+    BOOST_LIBSTDCXX_VERSION >= 48000) && \
+    !defined(BOOST_NO_CXX11_SMART_PTR)
+#include <boost/smart_ptr/allocate_unique.hpp>
+#include <boost/core/lightweight_test.hpp>
+
+template<class T = void>
+struct creator {
+    typedef T value_type;
+    typedef T* pointer;
+
+    template<class U>
+    struct rebind {
+        typedef creator<U> other;
+    };
+
+    creator() { }
+
+    template<class U>
+    creator(const creator<U>&) { }
+
+    T* allocate(std::size_t size) {
+        return static_cast<T*>(::operator new(sizeof(T) * size));
+    }
+
+    void deallocate(T* ptr, std::size_t) {
+        ::operator delete(ptr);
+    }
+};
+
+template<class T, class U>
+inline bool
+operator==(const creator<T>&, const creator<U>&)
+{
+    return true;
+}
+
+template<class T, class U>
+inline bool
+operator!=(const creator<T>&, const creator<U>&)
+{
+    return false;
+}
+
+class type {
+public:
+    static unsigned instances;
+
+    type() {
+        if (instances == 5) {
+            throw true;
+        }
+        ++instances;
+    }
+
+    ~type() {
+        --instances;
+    }
+
+private:
+    type(const type&);
+    type& operator=(const type&);
+};
+
+unsigned type::instances = 0;
+
+int main()
+{
+    try {
+        boost::allocate_unique<type[]>(creator<type>(), 6);
+        BOOST_ERROR("allocate_unique did not throw");
+    } catch (...) {
+        BOOST_TEST(type::instances == 0);
+    }
+    try {
+        boost::allocate_unique<type[][2]>(creator<type>(), 3);
+        BOOST_ERROR("allocate_unique did not throw");
+    } catch (...) {
+        BOOST_TEST(type::instances == 0);
+    }
+    try {
+        boost::allocate_unique<type[6]>(creator<>());
+        BOOST_ERROR("allocate_unique did not throw");
+    } catch (...) {
+        BOOST_TEST(type::instances == 0);
+    }
+    try {
+        boost::allocate_unique<type[3][2]>(creator<>());
+        BOOST_ERROR("allocate_unique did not throw");
+    } catch (...) {
+        BOOST_TEST(type::instances == 0);
+    }
+    try {
+        boost::allocate_unique_noinit<type[]>(creator<>(), 6);
+        BOOST_ERROR("allocate_unique_noinit did not throw");
+    } catch (...) {
+        BOOST_TEST(type::instances == 0);
+    }
+    try {
+        boost::allocate_unique_noinit<type[][2]>(creator<>(), 3);
+        BOOST_ERROR("allocate_unique_noinit did not throw");
+    } catch (...) {
+        BOOST_TEST(type::instances == 0);
+    }
+    try {
+        boost::allocate_unique_noinit<type[6]>(creator<>());
+        BOOST_ERROR("allocate_unique_noinit did not throw");
+    } catch (...) {
+        BOOST_TEST(type::instances == 0);
+    }
+    try {
+        boost::allocate_unique_noinit<type[3][2]>(creator<>());
+        BOOST_ERROR("allocate_unique_noinit did not throw");
+    } catch (...) {
+        BOOST_TEST(type::instances == 0);
+    }
+    return boost::report_errors();
+}
+#else
+int main()
+{
+    return 0;
+}
+#endif

test/allocate_unique_array_value_test.cpp

@@ -0,0 +1,98 @@
+/*
+Copyright 2019 Glen Joseph Fernandes
+(glenjofe@gmail.com)
+
+Distributed under the Boost Software License, Version 1.0.
+(http://www.boost.org/LICENSE_1_0.txt)
+*/
+#include <boost/config.hpp>
+#if (!defined(BOOST_LIBSTDCXX_VERSION) || \
+    BOOST_LIBSTDCXX_VERSION >= 48000) && \
+    !defined(BOOST_NO_CXX11_SMART_PTR)
+#include <boost/smart_ptr/allocate_unique.hpp>
+#include <boost/core/lightweight_test.hpp>
+
+template<class T = void>
+struct creator {
+    typedef T value_type;
+    typedef T* pointer;
+
+    template<class U>
+    struct rebind {
+        typedef creator<U> other;
+    };
+
+    creator() { }
+
+    template<class U>
+    creator(const creator<U>&) { }
+
+    T* allocate(std::size_t size) {
+        return static_cast<T*>(::operator new(sizeof(T) * size));
+    }
+
+    void deallocate(T* ptr, std::size_t) {
+        ::operator delete(ptr);
+    }
+};
+
+template<class T, class U>
+inline bool
+operator==(const creator<T>&, const creator<U>&)
+{
+    return true;
+}
+
+template<class T, class U>
+inline bool
+operator!=(const creator<T>&, const creator<U>&)
+{
+    return false;
+}
+
+int main()
+{
+    {
+        std::unique_ptr<int[],
+            boost::alloc_deleter<int[], creator<int> > > result =
+            boost::allocate_unique<int[]>(creator<int>(), 4, 1);
+        BOOST_TEST(result[0] == 1);
+        BOOST_TEST(result[1] == 1);
+        BOOST_TEST(result[2] == 1);
+        BOOST_TEST(result[3] == 1);
+    }
+    {
+        std::unique_ptr<int[],
+            boost::alloc_deleter<int[4], creator<int> > > result =
+            boost::allocate_unique<int[4]>(creator<int>(), 1);
+        BOOST_TEST(result[0] == 1);
+        BOOST_TEST(result[1] == 1);
+        BOOST_TEST(result[2] == 1);
+        BOOST_TEST(result[3] == 1);
+    }
+    {
+        std::unique_ptr<const int[],
+            boost::alloc_deleter<const int[], creator<> > > result =
+            boost::allocate_unique<const int[]>(creator<>(), 4, 1);
+        BOOST_TEST(result[0] == 1);
+        BOOST_TEST(result[1] == 1);
+        BOOST_TEST(result[2] == 1);
+        BOOST_TEST(result[3] == 1);
+    }
+    {
+        std::unique_ptr<const int[],
+            boost::alloc_deleter<const int[4], creator<> > > result =
+            boost::allocate_unique<const int[4]>(creator<>(), 1);
+        BOOST_TEST(result[0] == 1);
+        BOOST_TEST(result[1] == 1);
+        BOOST_TEST(result[2] == 1);
+        BOOST_TEST(result[3] == 1);
+    }
+    return boost::report_errors();
+}
+#else
+int main()
+{
+    return 0;
+}
+#endif