Move message() at its standard place, next to its other overload

This reverts commit 4b7018de85.

.travis.yml

@@ -0,0 +1,375 @@
+# Copyright 2016, 2017, 2018 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
+
+python: "2.7"
+
+branches:
+  only:
+    - master
+    - develop
+    - /feature\/.*/
+
+env:
+  matrix:
+    - BOGUS_JOB=true
+
+matrix:
+
+  exclude:
+    - env: BOGUS_JOB=true
+
+  include:
+    - os: linux
+      compiler: g++
+      env: TOOLSET=gcc COMPILER=g++ CXXSTD=03,11
+
+    - os: linux
+      compiler: g++-4.4
+      env: TOOLSET=gcc COMPILER=g++-4.4 CXXSTD=98,0x
+      addons:
+        apt:
+          packages:
+            - g++-4.4
+          sources:
+            - ubuntu-toolchain-r-test
+
+    - os: linux
+      compiler: g++-4.6
+      env: TOOLSET=gcc COMPILER=g++-4.6 CXXSTD=03,0x
+      addons:
+        apt:
+          packages:
+            - g++-4.6
+          sources:
+            - ubuntu-toolchain-r-test
+
+    - os: linux
+      compiler: g++-4.7
+      env: TOOLSET=gcc COMPILER=g++-4.7 CXXSTD=03,11
+      addons:
+        apt:
+          packages:
+            - g++-4.7
+          sources:
+            - ubuntu-toolchain-r-test
+
+    - os: linux
+      compiler: g++-4.8
+      env: TOOLSET=gcc COMPILER=g++-4.8 CXXSTD=03,11
+      addons:
+        apt:
+          packages:
+            - g++-4.8
+          sources:
+            - ubuntu-toolchain-r-test
+    - os: linux
+      compiler: g++-4.9
+      env: TOOLSET=gcc COMPILER=g++-4.9 CXXSTD=03,11
+      addons:
+        apt:
+          packages:
+            - g++-4.9
+          sources:
+            - ubuntu-toolchain-r-test
+
+    - os: linux
+      compiler: g++-5
+      env: TOOLSET=gcc COMPILER=g++-5 CXXSTD=03,11,14,1z
+      addons:
+        apt:
+          packages:
+            - g++-5
+          sources:
+            - ubuntu-toolchain-r-test
+
+    - os: linux
+      compiler: g++-6
+      env: TOOLSET=gcc COMPILER=g++-6 CXXSTD=03,11,14,1z
+      addons:
+        apt:
+          packages:
+            - g++-6
+          sources:
+            - ubuntu-toolchain-r-test
+
+    - os: linux
+      compiler: g++-7
+      env: TOOLSET=gcc COMPILER=g++-7 CXXSTD=03,11,14,17
+      addons:
+        apt:
+          packages:
+            - g++-7
+          sources:
+            - ubuntu-toolchain-r-test
+
+    - os: linux
+      compiler: g++-8
+      env: TOOLSET=gcc COMPILER=g++-8 CXXSTD=03,11,14,17
+      addons:
+        apt:
+          packages:
+            - g++-8
+          sources:
+            - ubuntu-toolchain-r-test
+
+    - os: linux
+      compiler: g++-8
+      env: UBSAN=1 TOOLSET=gcc COMPILER=g++-8 CXXSTD=03,11,14,17 UBSAN_OPTIONS=print_stacktrace=1 LINKFLAGS=-fuse-ld=gold
+      addons:
+        apt:
+          packages:
+            - g++-8
+          sources:
+            - ubuntu-toolchain-r-test
+
+    - os: linux
+      compiler: clang++
+      env: TOOLSET=clang COMPILER=clang++ CXXSTD=03,11
+
+    - os: linux
+      compiler: /usr/bin/clang++
+      env: TOOLSET=clang COMPILER=/usr/bin/clang++ CXXSTD=03,11
+      addons:
+        apt:
+          packages:
+            - clang-3.3
+
+    - os: linux
+      compiler: /usr/bin/clang++
+      env: TOOLSET=clang COMPILER=/usr/bin/clang++ CXXSTD=03,11
+      addons:
+        apt:
+          packages:
+            - clang-3.4
+
+    - os: linux
+      compiler: clang++-3.5
+      env: TOOLSET=clang COMPILER=clang++-3.5 CXXSTD=03,11,14,1z
+      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
+      env: TOOLSET=clang COMPILER=clang++-3.6 CXXSTD=03,11,14,1z
+      addons:
+        apt:
+          packages:
+            - clang-3.6
+          sources:
+            - ubuntu-toolchain-r-test
+            - llvm-toolchain-precise-3.6
+
+    - os: linux
+      compiler: clang++-3.6
+      env: TOOLSET=clang COMPILER=clang++-3.6 CXXSTD=03,11,14,1z
+      addons:
+        apt:
+          packages:
+            - clang-3.6
+            - libstdc++-4.9-dev
+          sources:
+            - ubuntu-toolchain-r-test
+            - llvm-toolchain-precise-3.6
+
+    - os: linux
+      compiler: clang++-3.7
+      env: TOOLSET=clang COMPILER=clang++-3.7 CXXSTD=03,11,14,1z
+      addons:
+        apt:
+          packages:
+            - clang-3.7
+          sources:
+            - ubuntu-toolchain-r-test
+            - llvm-toolchain-precise-3.7
+
+    - os: linux
+      compiler: clang++-3.7
+      env: TOOLSET=clang COMPILER=clang++-3.7 CXXSTD=03,11,14,1z
+      addons:
+        apt:
+          packages:
+            - clang-3.7
+            - libstdc++-4.9-dev
+          sources:
+            - ubuntu-toolchain-r-test
+            - llvm-toolchain-precise-3.7
+
+    - os: linux
+      compiler: clang++-3.8
+      env: TOOLSET=clang COMPILER=clang++-3.8 CXXSTD=03,11,14,1z
+      addons:
+        apt:
+          packages:
+            - clang-3.8
+          sources:
+            - ubuntu-toolchain-r-test
+            - llvm-toolchain-precise-3.8
+
+    - os: linux
+      compiler: clang++-3.8
+      env: TOOLSET=clang COMPILER=clang++-3.8 CXXSTD=03,11,14,1z
+      addons:
+        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
+      env: TOOLSET=clang COMPILER=clang++-3.9 CXXSTD=03,11,14,1z
+      addons:
+        apt:
+          packages:
+            - clang-3.9
+          sources:
+            - ubuntu-toolchain-r-test
+            - llvm-toolchain-precise-3.9
+
+    - os: linux
+      compiler: clang++-3.9
+      env: TOOLSET=clang COMPILER=clang++-3.9 CXXSTD=03,11,14,1z
+      addons:
+        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
+      env: TOOLSET=clang COMPILER=clang++-4.0 CXXSTD=03,11,14,1z
+      addons:
+        apt:
+          packages:
+            - clang-4.0
+          sources:
+            - ubuntu-toolchain-r-test
+            - llvm-toolchain-trusty-4.0
+
+    - os: linux
+      compiler: clang++-4.0
+      env: TOOLSET=clang COMPILER=clang++-4.0 CXXSTD=03,11,14,1z
+      addons:
+        apt:
+          packages:
+            - clang-4.0
+            - libstdc++-4.9-dev
+          sources:
+            - ubuntu-toolchain-r-test
+            - llvm-toolchain-trusty-4.0
+
+    - os: linux
+      compiler: clang++-5.0
+      env: TOOLSET=clang COMPILER=clang++-5.0 CXXSTD=03,11,14,1z
+      addons:
+        apt:
+          packages:
+            - clang-5.0
+          sources:
+            - ubuntu-toolchain-r-test
+            - llvm-toolchain-trusty-5.0
+
+    - os: linux
+      compiler: clang++-5.0
+      env: TOOLSET=clang COMPILER=clang++-5.0 CXXSTD=03,11,14,1z
+      addons:
+        apt:
+          packages:
+            - clang-5.0
+            - libstdc++-4.9-dev
+          sources:
+            - ubuntu-toolchain-r-test
+            - llvm-toolchain-trusty-5.0
+
+    - os: linux
+      compiler: clang++-6.0
+      env: TOOLSET=clang COMPILER=clang++-6.0 CXXSTD=03,11,14,17
+      addons:
+        apt:
+          packages:
+            - clang-6.0
+          sources:
+            - ubuntu-toolchain-r-test
+            - llvm-toolchain-trusty-6.0
+
+    - os: linux
+      compiler: clang++-6.0
+      env: TOOLSET=clang COMPILER=clang++-6.0 CXXSTD=03,11,14,17
+      addons:
+        apt:
+          packages:
+            - clang-6.0
+            - libstdc++-4.9-dev
+          sources:
+            - ubuntu-toolchain-r-test
+            - llvm-toolchain-trusty-6.0
+
+    - os: linux
+      compiler: clang++-6.0
+      env: UBSAN=1 TOOLSET=clang COMPILER=clang++-6.0 CXXSTD=03,11,14,1z UBSAN_OPTIONS=print_stacktrace=1
+      addons:
+        apt:
+          packages:
+            - clang-6.0
+            - libstdc++-5-dev
+          sources:
+            - ubuntu-toolchain-r-test
+            - llvm-toolchain-trusty-6.0
+
+    - os: linux
+      compiler: clang++-libc++
+      env: TOOLSET=clang COMPILER=clang++-libc++ CXXSTD=03,11,14,1z
+      addons:
+        apt:
+          packages:
+            - libc++-dev
+
+    - os: linux
+      compiler: clang++-libc++
+      env: UBSAN=1 TOOLSET=clang COMPILER=clang++-libc++ CXXSTD=03,11,14,1z UBSAN_OPTIONS=print_stacktrace=1
+      addons:
+        apt:
+          packages:
+            - libc++-dev
+
+    - os: osx
+      compiler: clang++
+      env: TOOLSET=clang COMPILER=clang++ CXXSTD=03,11,14,1z
+
+install:
+  - BOOST_BRANCH=develop && [ "$TRAVIS_BRANCH" == "master" ] && BOOST_BRANCH=master || true
+  - cd ..
+  - git clone -b $BOOST_BRANCH --depth 1 https://github.com/boostorg/boost.git boost-root
+  - cd boost-root
+  - git submodule update --init tools/build
+  - git submodule update --init libs/config
+  - git submodule update --init tools/boostdep
+  - cp -r $TRAVIS_BUILD_DIR/* libs/system
+  - python tools/boostdep/depinst/depinst.py system
+  - ./bootstrap.sh
+  - ./b2 headers
+
+script:
+  - |-
+    echo "using $TOOLSET : : $COMPILER ;" > ~/user-config.jam
+  - ./b2 -j3 libs/system/test toolset=$TOOLSET cxxstd=$CXXSTD variant=debug,release ${UBSAN:+cxxflags=-fsanitize=undefined cxxflags=-fno-sanitize-recover=undefined linkflags=-fsanitize=undefined define=UBSAN=1 debug-symbols=on} ${LINKFLAGS:+linkflags=$LINKFLAGS}
+
+notifications:
+  email:
+    on_success: always

appveyor.yml

@@ -0,0 +1,80 @@
+# Copyright 2016, 2017 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)
+
+version: 1.0.{build}-{branch}
+
+shallow_clone: true
+
+branches:
+  only:
+    - master
+    - develop
+    - /feature\/.*/
+
+environment:
+  matrix:
+    - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2013
+      TOOLSET: msvc-9.0
+    - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2013
+      TOOLSET: msvc-10.0
+    - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2013
+      TOOLSET: msvc-11.0
+    - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2013
+      TOOLSET: msvc-12.0
+    - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2015
+      TOOLSET: msvc-14.0
+    - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2017
+      TOOLSET: msvc-14.1
+    - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2017
+      TOOLSET: msvc-14.1
+      CXXSTD: 17
+    - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2013
+      ADDPATH: C:\cygwin\bin;
+      TOOLSET: gcc
+    - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2013
+      ADDPATH: C:\cygwin\bin;
+      TOOLSET: gcc
+      CXXSTD: 03,11
+    - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2013
+      ADDPATH: C:\cygwin64\bin;
+      TOOLSET: gcc
+    - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2013
+      ADDPATH: C:\cygwin64\bin;
+      TOOLSET: gcc
+      CXXSTD: 03,11
+    - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2013
+      ADDPATH: C:\mingw\bin;
+      TOOLSET: gcc
+    - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2013
+      ADDPATH: C:\mingw\bin;
+      TOOLSET: gcc
+      CXXSTD: 03,11
+    - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2013
+      ADDPATH: C:\mingw-w64\x86_64-6.3.0-posix-seh-rt_v5-rev1\mingw64\bin;
+      TOOLSET: gcc
+    - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2013
+      ADDPATH: C:\mingw-w64\x86_64-6.3.0-posix-seh-rt_v5-rev1\mingw64\bin;
+      TOOLSET: gcc
+      CXXSTD: 03,11
+
+install:
+  - set BOOST_BRANCH=develop
+  - if "%APPVEYOR_REPO_BRANCH%" == "master" set BOOST_BRANCH=master
+  - cd ..
+  - git clone -b %BOOST_BRANCH% --depth 1 https://github.com/boostorg/boost.git boost-root
+  - cd boost-root
+  - git submodule update --init tools/build
+  - git submodule update --init libs/config
+  - git submodule update --init tools/boostdep
+  - xcopy /s /e /q %APPVEYOR_BUILD_FOLDER% libs\system
+  - python tools/boostdep/depinst/depinst.py system
+  - cmd /c bootstrap
+  - b2 -d0 headers
+
+build: off
+
+test_script:
+  - PATH=%ADDPATH%%PATH%
+  - if not "%CXXSTD%" == "" set CXXSTD=cxxstd=%CXXSTD%
+  - b2 -j3 libs/system/test toolset=%TOOLSET% variant=debug,release %CXXSTD%

doc/index.html

@@ -38,6 +38,7 @@
   <tr>
     <td width="100%" bgcolor="#E8F5FF">
       <a href="#Introduction">Introduction</a><br>
+      <a href="#Release_History">Release History</a><br>
       <a href="#Design_Rationale">Design Rationale</a><br>
       <a href="#History">History</a><br>
       <a href="#Acknowledgements">Acknowledgements</a>
@@ -95,7 +96,7 @@ and Windows platforms. These headers are effectively no-ops if included for
 platforms other than their intended target.</p>
 <table border="1" cellpadding="10" cellspacing="1" style="border-collapse: collapse" bordercolor="#111111">
   <tr>
-    <td>The Boost System Library will become part of the C++0x Standard Library. 
+    <td>The Boost System Library is part of the C++11 Standard Library. 
     A number of changes, particularly to names, were made by the C++ committee 
     during standardization. The Boost implementation is tracking those changes. 
     See <a href="reference.html#Deprecated-names">Deprecated names</a> for 
@@ -105,6 +106,9 @@ platforms other than their intended target.</p>
     and will cause compile-time errors.</td>
   </tr>
 </table>
+<h2><a name="Release_History">Release History</a></h2>
+<p><code>system-2014-06-02</code>: First modular Boost release. Minor 
+maintenance changes.</p>
 <h2><a name="Design_Rationale">Design Rationale</a></h2>
 <p>Class <code>error_code</code>&nbsp; and <code>error_condition</code> are designed as a value types so 
 they can be copied 
@@ -145,7 +149,7 @@ paper. Johan Nilsson's comments led to several of the refinements in N2066 .</p>
 <hr>
 
 <p>Revised 
-<!--webbot bot="Timestamp" S-Type="EDITED" S-Format="%B %d, %Y" startspan -->May 28, 2010<!--webbot bot="Timestamp" endspan i-checksum="11241" --> </font>
+<!--webbot bot="Timestamp" S-Type="EDITED" S-Format="%B %d, %Y" startspan -->June 02, 2014<!--webbot bot="Timestamp" endspan i-checksum="13984" --> </font>
 </p>
 
 <p><EFBFBD> Copyright Beman Dawes, 1999</p>

doc/reference.html

@@ -38,6 +38,7 @@
   <tr>
     <td width="100%" bgcolor="#E8F5FF">
       <a href="#Introduction">Introduction</a><br>
+      <a href="#C++11">C++11</a><br>
       <a href="#Macros">Macros</a><br>
       <a href="#Deprecated-names">Deprecated names</a><br>
       <a href="#Breaking-changes">Breaking changes</a><br>
@@ -59,8 +60,7 @@
       &nbsp;&nbsp;&nbsp;<a href="#Class-error_condition-constructors">Class <code>error_condition</code> constructors</a><br>
       &nbsp;&nbsp;&nbsp;<a href="#Class-error_condition-modifiers">Class <code>error_condition</code> modifiers</a><br>
       &nbsp;&nbsp;&nbsp;<a href="#Class-error_condition-observers">Class <code>error_condition</code> observers</a><br>
-      <a href="#throws-object"><code>throws</code> object</a><br>
-      <a href="#Semantics-of-throws">Semantics of <code>throws</code> object</a><br>
+      <a href="#Function-boost-throws">Function <code>boost::throws()</code></a><br>
       <a href="#Non-member-functions">Non-member functions</a><br>
       <a href="#Header-system_error">Header &lt;boost/system/system_error.hpp&gt;</a><br>
       &nbsp;&nbsp;&nbsp;<a href="#Class-system_error">Class <code>system_error</code></a><br>
@@ -70,13 +70,17 @@
 
 <h2><a name="Introduction">Introduction</a></h2>
 
-<p>This reference documentation describes components that&nbsp; 
-programs may use to report error conditions originating from the operating 
+<p>This reference documentation describes components that&nbsp;programs may use to report error conditions originating from the operating 
 system or other low-level application program interfaces.</p>
 <p>Boost.System library components never change the value of <code>
 errno</code>.</p>
+<h2><a name="C++11">C++11</a></h2>
+<p>The library is documented to use several C++11 features, including <code>
+noexcept</code> and explicit conversion operators. The actual implementation 
+uses C++11 features only when they are available, and otherwise falls back on 
+C++03 features.</p>
 <h2><a name="Macros">Macros</a></h2>
-<p>Users may defined the following macros if desired. Sensible defaults are 
+<p>Users may define the following macros if desired. Sensible defaults are
 provided, so users may ignore these macros if they prefer.</p>
 <table border="1" cellpadding="5" cellspacing="0" style="border-collapse: collapse" bordercolor="#111111" height="368">
   <tr>
@@ -84,6 +88,12 @@ provided, so users may ignore these macros if they prefer.</p>
     <td height="16"><b><i>Default</i></b></td>
     <td height="16"><b><i>Effect if defined</i></b></td>
   </tr>
+  <tr>
+    <td valign="top" height="64"><code>BOOST_ERROR_CODE_HEADER_ONLY</code></td>
+    <td valign="top" height="64">Not defined.</td>
+    <td valign="top" height="64">The implementation is header-only, and the 
+    Boost.System library is not built. Overrides other link and library macros.</td>
+  </tr>
   <tr>
     <td valign="top" height="64"><code>BOOST_SYSTEM_DYN_LINK</code></td>
     <td valign="top" height="64">Defined if <code>BOOST_ALL_DYN_LINK</code> is defined, 
@@ -99,17 +109,16 @@ provided, so users may ignore these macros if they prefer.</p>
     facility.</td>
   </tr>
   <tr>
-    <td valign="top" height="32"><code>BOOST_SYSTEM_NO_DEPRECATED</code></td>
+    <td valign="top" height="32"><code>BOOST_SYSTEM_ENABLE_DEPRECATED</code></td>
     <td valign="top" height="32">Not defined.</td>
-    <td valign="top" height="32">Deprecated features are excluded.</td>
+    <td valign="top" height="32">Deprecated features are provided for compatibility.</td>
   </tr>
   </table>
 <h2><a name="Deprecated-names">Deprecated names</a></h2>
-<p>In the process of adding Boost.System to C++0x standard library, the C++ 
-committee changed some  
-names. To ease transition, Boost.System deprecates the old 
-names, but continues to provide them unless macro <code>BOOST_SYSTEM_NO_DEPRECATED</code> 
-is defined.</p>
+<p>In the process of adding Boost.System to the C++11 standard library, the
+C++ committee changed some names. To ease transition, Boost.System deprecates
+the old names, but will provide them when the macro
+<code>BOOST_SYSTEM_ENABLE_DEPRECATED</code> is defined.</p>
 <table border="1" cellpadding="5" cellspacing="1" style="border-collapse: collapse" bordercolor="#111111">
   <tr>
     <td><b><i>Old usage, now deprecated</i></b></td>
@@ -178,6 +187,9 @@ fixed by globally adding () to these names to turn them into function calls.</p>
   namespace system
   {
     class <a href="#Class-error_category">error_category</a>;
+    const error_category &amp;  <a href="#system_category">system_category</a>() noexcept;
+    const error_category &amp;  <a href="#generic_category">generic_category</a>() noexcept;
+
     class <a href="#Class-error_code">error_code</a>;
     class <a href="#Class-error_condition">error_condition</a>;
 
@@ -281,29 +293,33 @@ fixed by globally adding () to these names to turn them into function calls.</p>
 
     //  <a href="#Non-member-functions">non-member functions</a>
 
-    bool operator==( const error_code &amp; lhs, const error_code &amp; rhs );
-    bool operator==( const error_code &amp; code, const error_condition &amp; condition );
-    bool operator==( const error_condition &amp; condition, const error_code &amp; code );
-    bool operator==( const error_condition &amp; lhs, const error_condition &amp; rhs );
+    bool operator==( const error_code &amp; lhs, const error_code &amp; rhs ) noexcept;
+    bool operator==( const error_code &amp; code, const error_condition &amp; condition ) noexcept;
+    bool operator==( const error_condition &amp; condition, const error_code &amp; code ) noexcept;
+    bool operator==( const error_condition &amp; lhs, const error_condition &amp; rhs ) noexcept;
 
-    bool operator!=( const error_code &amp; lhs, const error_code &amp; rhs );
-    bool operator!=( const error_code &amp; code, const error_condition &amp; condition );
-    bool operator!=( const error_condition &amp; condition, const error_code &amp; code );
-    bool operator!=( const error_condition &amp; lhs, const error_condition &amp; rhs );
+    bool operator!=( const error_code &amp; lhs, const error_code &amp; rhs ) noexcept;
+    bool operator!=( const error_code &amp; code, const error_condition &amp; condition ) noexcept;
+    bool operator!=( const error_condition &amp; condition, const error_code &amp; code ) noexcept;
+    bool operator!=( const error_condition &amp; lhs, const error_condition &amp; rhs ) noexcept;
 
-    bool operator&lt;( const error_code &amp; lhs, const error_code &amp; rhs );
-    bool operator&lt;( const error_condition &amp; lhs, const error_condition &amp; rhs );
+    bool operator&lt;( const error_code &amp; lhs, const error_code &amp; rhs ) noexcept;
+    bool operator&lt;( const error_condition &amp; lhs, const error_condition &amp; rhs ) noexcept;
 
-    error_code make_error_code( errc::errc_t e );
-    error_condition make_error_condition( errc::errc_t e );
+    error_code make_error_code( errc::errc_t e ) noexcept;
+    error_condition make_error_condition( errc::errc_t e ) noexcept;
 
     template &lt;class charT, class traits&gt;
       std::basic_ostream&lt;charT,traits&gt;&amp;
         operator&lt;&lt;( basic_ostream&lt;charT,traits&gt;&amp; os, const error_code &amp; ec );
 
     size_t hash_value( const error_code &amp; ec );
-  }
-}</pre>
+
+  } // namespace system
+
+  system::error_code &amp; throws();
+    
+} // namespace boost</pre>
 </blockquote>
 <p>The value of each<code> errc_t</code> constant shall be the same as the 
 value of the <code>&lt;cerrno&gt;</code> macro shown in the above synopsis.</p>
@@ -312,6 +328,17 @@ is_error_condition_enum</code> templates to indicate that a type is eligible for
 class <code>error_code</code> and <code>error_condition</code> automatic 
 conversions respectively.</p>
 
+<pre>const error_category &amp; <a name="system_category">system_category</a>();</pre>
+<blockquote>
+  <p><i>Returns:</i> A reference to a <code>error_category</code> object 
+  identifying errors originating from the operating system.</p>
+</blockquote>
+<pre>const error_category &amp; <a name="generic_category">generic_category</a>();</pre>
+<blockquote>
+  <p><i>Returns:</i> A reference to a <code>error_category</code> object 
+  identifying portable error conditions.</p>
+</blockquote>
+
 <h2><a name="Class-error_category">Class <code>error_category</code></a></h2>
 <p>The class <code>error_category</code> defines the base class for types used 
 to identify the source and encoding of a particular category of error code.</p>
@@ -336,37 +363,33 @@ types should create a single object of each such type. <i>
     public:
       virtual ~error_category();
 
-      virtual const char *     name() const = 0;
+      virtual const char *     name() const noexcept = 0;
       virtual string           message( int ev ) const = 0;
-      virtual error_condition  default_error_condition( int ev ) const;
-      virtual bool             equivalent( int code, const error_condition &amp; condition ) const;
-      virtual bool             equivalent( const error_code &amp; code, int condition ) const;
+      virtual error_condition  default_error_condition( int ev ) const noexcept;
+      virtual bool             equivalent( int code, const error_condition &amp; condition )
+                                 const noexcept;
+      virtual bool             equivalent( const error_code &amp; code, int condition ) const noexcept;
 
-      bool operator==( const error_category &amp; rhs ) const;
-      bool operator!=( const error_category &amp; rhs ) const;
-      bool operator&lt; ( const error_category &amp; rhs ) const;
+      bool operator==( const error_category &amp; rhs ) const noexcept;
+      bool operator!=( const error_category &amp; rhs ) const noexcept;
+      bool operator&lt; ( const error_category &amp; rhs ) const noexcept;
     };
-
-    const error_category &amp;  system_category();
-    const error_category &amp;  generic_category();
   }
 }</pre>
 </blockquote>
 <h3><a name="Class-error_category-virtual-members">Class <code>error_category</code> virtual members</a></h3>
 <p>Classes derived from <code>error_category</code> shall behave as specified in 
 this subclause.</p>
-<pre>virtual const char * name() const=0;</pre>
+<pre>virtual const char * name() const noexcept =0;</pre>
 <blockquote>
   <p><i>Returns: </i>a string naming the error category.</p>
-  <p><i>Throws:</i> Nothing.</p>
 </blockquote>
-<pre>virtual string message( int ev ) const=0;</pre>
+<pre>virtual string message( int ev ) const noexcept =0;</pre>
 <blockquote>
   <p><i>Returns:</i> A string that describes the error denoted by
   <code>ev</code>.</p>
-  <p><i>Throws:</i> Nothing.</p>
 </blockquote>
-<p><code>virtual error_condition default_error_condition( int ev ) const;</code></p>
+<pre>virtual error_condition default_error_condition( int ev ) const noexcept;</pre>
 <blockquote>
   <p><i>Returns:</i>&nbsp; <code>error_condition( ev, *this )</code>.</p>
   <blockquote>
@@ -375,52 +398,33 @@ this subclause.</p>
     and return it as an <code>error_condition</code> for that category. <i>--end 
     note</i>]</p>
   </blockquote>
-  <p><i>Throws:</i> Nothing.</p>
-</blockquote>
-<p><code>virtual bool equivalent( int code, const error_condition &amp; 
-condition ) 
-const;</code></p>
+  </blockquote>
+<pre>virtual bool equivalent( int code, const error_condition &amp; condition ) const noexcept;</pre>
 <blockquote>
   <p><i>Returns:</i> <code>default_error_condition( code ) == condition</code>.</p>
-  <p><i>Throws:</i> Nothing.</p>
-</blockquote>
-<p><code>virtual bool equivalent( const error_code &amp; code, int condition ) const;</code></p>
+  </blockquote>
+<pre>virtual bool equivalent( const error_code &amp; code, int condition ) const noexcept;</pre>
 <blockquote>
   <p><i>Returns:</i> <code>*this == code.category() &amp;&amp; code.value() == condition</code>.</p>
-  <p><i>Throws:</i> Nothing.</p>
-</blockquote>
+  </blockquote>
 <h3><a name="Class-error_category-non-virtual-members">Class <code>error_category</code> non-virtual members</a></h3>
-<p><code>bool operator==( const error_category &amp; rhs ) const;</code></p>
+<pre>bool operator==( const error_category &amp; rhs ) const noexcept;</pre>
 <blockquote>
 <p><i>Returns:</i> <code>this == &amp;rhs</code>.</p>
 </blockquote>
-<p><code>bool operator!=( const error_category &amp; rhs ) const;</code></p>
+<pre>bool operator!=( const error_category &amp; rhs ) const noexcept;</pre>
 <blockquote>
 <p><i>Returns:</i> <code>this != &amp;rhs</code>.</p>
 </blockquote>
 
-<pre>bool operator&lt;( const error_category &amp; rhs ) const;</pre>
+<pre>bool operator&lt;( const error_category &amp; rhs ) const noexcept;</pre>
 <blockquote>
-  <p><i>Returns:</i> <code>std::less&lt;const error_category*&gt;()( this, &amp;rhs )</code>.</p>
+  <p><i>Returns:</i> <code>std::less&lt;const error_category*&gt;()( this, &amp;rhs&nbsp; 
+  noexcept)</code>.</p>
   <blockquote>
     <p><i>[Note:</i> <code>std::less</code> provides a total ordering for 
     pointers. <i>--end note]</i></p>
   </blockquote>
-  <p><i>Throws:</i> Nothing.</p>
-</blockquote>
-<h3><a name="Class-error_category-non-member-functions">Class <code>error_category</code> 
-non-member functions</a></h3>
-<pre>const error_category &amp; system_category();</pre>
-<blockquote>
-  <p><i>Returns:</i> A reference to a <code>error_category</code> object 
-  identifying errors originating from the operating system.</p>
-  <p><i>Throws:</i> Nothing.</p>
-</blockquote>
-<pre>const error_category &amp; generic_category();</pre>
-<blockquote>
-  <p><i>Returns:</i> A reference to a <code>error_category</code> object 
-  identifying portable error conditions.</p>
-  <p><i>Throws:</i> Nothing.</p>
 </blockquote>
 <h2><a name="Class-error_code">Class <code>
 error_code</code></a></h2>
@@ -440,21 +444,21 @@ error_code</code> synopsis</a></h3>
     public:
 
       // constructors:
-      error_code();
-      error_code( val, const error_category &amp; cat );
+      error_code() noexcept;
+      error_code( val, const error_category &amp; cat ) noexcept;
       template &lt;class <code>ErrorCodeEnum</code>&gt;
-        error_code(<code> ErrorCodeEnum</code> e );
+        error_code(<code> ErrorCodeEnum</code> e ) noexcept;
 
       // modifiers:
-      void assign( int val, const error_category &amp; cat );
+      void assign( int val, const error_category &amp; cat ) noexcept;
       template&lt;typename <code>ErrorCodeEnum</code>&gt;
-        error_code &amp; operator=( <code>ErrorCodeEnum</code> val );;
-      void clear();
+        error_code &amp; operator=( <code>ErrorCodeEnum</code> val ) noexcept;
+      void clear() noexcept;
 
       // observers:
-      int                    value() const;
-      cont error_category &amp;  category() const;
-      error_condition        default_error_condition() const;
+      int                    value() const noexcept;
+      cont error_category &amp;  category() const noexcept;
+      error_condition        default_error_condition() const noexcept;
       string                 message() const;
       operator unspecified-bool-type() const;
 
@@ -467,71 +471,63 @@ error_code</code> synopsis</a></h3>
 </blockquote>
 <h3><a name="Class-error_code-constructors">Class <code>
 error_code</code> constructors</a></h3>
-<pre>error_code();</pre>
+<pre>error_code() noexcept;</pre>
 <blockquote>
   <p><i>Effects: </i>Constructs an object of type <code>error_code</code>.</p>
   <p><i>Postconditions:</i> <code>val_ == 0 &amp;&amp; cat_ == &amp;system_category()</code>.</p>
-  <p><i>Throws:</i> Nothing.</p>
 </blockquote>
-<pre>error_code( int val, const error_category &amp; cat );</pre>
+<pre>error_code( int val, const error_category &amp; cat ) noexcept;</pre>
 <blockquote>
   <p><i>Effects: </i>Constructs an object of type <code>error_code</code>.</p>
   <p><i>Postconditions:</i> <code>val_ == val &amp;&amp; cat_ == &amp;cat</code>.</p>
-  <p><i>Throws:</i> Nothing.</p>
 </blockquote>
 <pre>template &lt;class <code>ErrorCodeEnum</code>&gt;
-  error_code(<code> ErrorCodeEnum</code> val );</pre>
+  error_code(<code> ErrorCodeEnum</code> val ) noexcept;</pre>
 <blockquote>
   <p><i>Effects: </i>Constructs an object of type <code>error_code</code>.</p>
   <p><i>Postconditions:</i> <code>*this == make_error_code( val )</code>.</p>
-  <p><i>Throws:</i> Nothing.</p>
   <p><i>Remarks:</i> This constructor shall not participate in overload 
   resolution unless <code>is_error_code_enum&lt;ErrorCodeEnum&gt;::value</code> is
   <code>true</code>.</p>
 </blockquote>
 <h3><a name="Class-error_code-modifiers">Class <code>
 error_code</code> modifiers</a></h3>
-<pre>void assign( int val, const error_category &amp; cat );</pre>
+<pre>void assign( int val, const error_category &amp; cat ) noexcept;</pre>
 <blockquote>
   <p><i>Postconditions:</i> <code>val_ == val &amp;&amp; cat_ == &amp;cat</code>.</p>
-  <p><i>Throws:</i> Nothing.</p>
 </blockquote>
 <pre>template&lt;typename <code>ErrorCodeEnum</code>&gt;
-  error_code &amp; operator=( <code>ErrorCodeEnum</code> val );</pre>
+  error_code &amp; operator=( <code>ErrorCodeEnum</code> val ) noexcept;</pre>
 <blockquote>
   <p><i>Postconditions:</i> <code>*this == make_error_code( val )</code>.</p>
-  <p><i>Throws:</i> Nothing.</p>
   <p><i>Remarks:</i> This operator shall not participate in overload resolution 
   unless <code>is_error_code_enum&lt;ErrorCodeEnum&gt;::value</code> is <code>true</code>.</p>
 </blockquote>
-<p><code>void clear();</code></p>
+<pre><code>void clear() noexcept;</code></pre>
 <blockquote>
   <p><i>postcondition:</i> <code>value() == 0 &amp;&amp; category() == 
   system_category()</code></p>
 </blockquote>
   <h3><a name="Class-error_code-observers">Class <code>
 error_code</code> observers</a></h3>
-  <p><code>int value() const;</code></p>
+  <pre><code>int value() const noexcept;</code></pre>
 <blockquote>
 <p><i>Returns:</i> <code>val_</code>.</p>
-  <p><i>Throws:</i> Nothing.</p>
-</blockquote>
-  <p><code>const error_category &amp; category() const;</code></p>
+  </blockquote>
+<pre><code>const error_category &amp; category() const noexcept;</code></pre>
 <blockquote>
 <p><i>Returns:</i> <code>*cat_</code>.</p>
-  <p><i>Throws:</i> Nothing.</p>
-</blockquote>
-  <pre>error_condition default_error_condition() const;</pre>
+  </blockquote>
+  <pre>error_condition default_error_condition() const noexcept;</pre>
 <blockquote>
 <p><i>Returns:</i>&nbsp; <code>category().default_error_condition( value())</code>.</p>
-  <p><i>Throws:</i> Nothing.</p>
 </blockquote>
-  <p><code>string message() const;</code></p>
+  <pre><code>string message() const;</code></pre>
 <blockquote>
 <p><i>Returns:</i>&nbsp; <code>category().message( value())</code>.</p>
   <p><i>Throws:</i> Nothing.</p>
 </blockquote>
-<p><code>operator <i>unspecified-bool-type</i>() const;</code></p>
+<pre>operator unspecified-bool-type() const;</pre>
 <blockquote>
 <p><i>Returns:</i> if <code>value() != 0</code>, returns a value that will evaluate
 <code>true</code> in a boolean context; otherwise, returns a value that will 
@@ -560,22 +556,22 @@ implementation specific. <i>--end note ]</i></p>
     public:
 
       // constructors:
-      error_condition();
-      error_condition( int val, const error_category &amp; cat );
+      error_condition() noexcept;
+      error_condition( int val, const error_category &amp; cat ) noexcept;
       template &lt;class ErrorConditionEnum&gt;
-        error_condition( errorConditionEnum val );
+        error_condition( errorConditionEnum val ) noexcept;
 
       // modifiers:
-      void assign( int val, const error_category &amp; cat );
+      void assign( int val, const error_category &amp; cat ) noexcept;
       template&lt;typename ErrorConditionEnum&gt;
-        error_condition &amp; operator=( ErrorConditionEnum val );
-      void clear();
+        error_condition &amp; operator=( ErrorConditionEnum val ) noexcept;
+      void clear() noexcept;
 
       // observers:
-      int value() const;
-      const error_category &amp; category() const;
+      int value() const noexcept;
+      const error_category &amp; category() const noexcept;
       string message() const;
-      operator unspecified-bool-type () const;
+      operator unspecified-bool-type () const noexcept;
 
     private:
       int val_;                      // <i>exposition only</i>
@@ -586,65 +582,57 @@ implementation specific. <i>--end note ]</i></p>
 </blockquote>
 <h3><a name="Class-error_condition-constructors">Class <code>error_condition</code> 
 constructors</a></h3>
-<pre>error_condition(); </pre>
+<pre>error_condition() noexcept; </pre>
 <blockquote>
   <p><i>Effects:</i> Constructs an object of type <code>error_condition</code>.</p>
   <p><i>Postconditions:</i> <code>val_ == 0 and cat_ == &amp;generic_category()</code>.</p>
-  <p><i>Throws:</i> Nothing.</p>
 </blockquote>
-<pre>error_condition( int val, const error_category &amp; cat );</pre>
+<pre>error_condition( int val, const error_category &amp; cat ) noexcept;</pre>
 <blockquote>
   <p><i>Effects: </i>Constructs an object of type error_condition.</p>
   <p><i>Postconditions:</i> <code>val_ == val and cat_ == &amp;cat</code>.</p>
-  <p><i>Throws:</i> Nothing.</p>
 </blockquote>
 <pre>template &lt;class ErrorConditionEnum&gt;
-  error_condition( ErrorConditionEnum e );</pre>
+  error_condition( ErrorConditionEnum e ) noexcept;</pre>
 <blockquote>
   <p><i>Effects:</i> Constructs an object of type <code>error_condition</code>.</p>
   <p><i>Postconditions:</i> <code>*this == make_error_condition(e)</code>.</p>
-  <p><i>Throws:</i> Nothing.</p>
   <p><i>Remarks:</i> This constructor shall not participate in overload 
   resolution unless <code>is_error_condition_enum&lt;ErrorConditionEnum&gt;::value</code> 
   is <code>true</code>.</p>
 </blockquote>
 <h3><a name="Class-error_condition-modifiers">Class <code>error_condition</code> 
 modifiers</a></h3>
-<pre>void assign( int val, const error_category &amp; cat ); </pre>
+<pre>void assign( int val, const error_category &amp; cat ) noexcept; </pre>
 <blockquote>
   <p><i>Postconditions:</i> <code>val_ == val and cat_ == &amp;cat</code>. </p>
-  <p><i>Throws:</i> Nothing.</p>
 </blockquote>
 <pre>template&lt;typename ErrorConditionEnum&gt;
-  error_condition &amp; operator=( ErrorConditionEnum e );</pre>
+  error_condition &amp; operator=( ErrorConditionEnum e ) noexcept;</pre>
 <blockquote>
   <p><i>Postconditions:</i> <code>*this == make_error_condition( e )</code>.</p>
   <p><i>Returns:</i> <code>*this</code>.</p>
-  <p><i>Throws:</i> Nothing.</p>
   <p><i>Remarks:</i> This operator shall not participate in overload resolution 
   unless <code>is_error_condition_enum&lt;ErrorConditionEnum&gt;::value</code> is
   <code>true</code>.</p>
 </blockquote>
-<p><code>void clear();</code></p>
+<pre>void clear() noexcept;</pre>
 <blockquote>
-  <p><i>postcondition:</i> <code>value() == 0 &amp;&amp; category() == generic_category()</code></p>
+  <p><i>Postcondition:</i> <code>value() == 0 &amp;&amp; category() == generic_category()</code></p>
 </blockquote>
 <h3><a name="Class-error_condition-observers">Class <code>error_condition</code> 
 observers</a></h3>
-<pre>int value() const;</pre>
+<pre>int value() const noexcept;</pre>
 <blockquote>
   <p><i>Returns:</i> <code>val_</code>.</p>
-  <p><i>Throws:</i> Nothing</p>
 </blockquote>
-<pre>const error_category &amp; category() const;</pre>
+<pre>const error_category &amp; category() const noexcept;</pre>
 <blockquote>
   <p><i>Returns:</i> <code>*cat_</code>.</p>
-  <p>Throws: Nothing.</p>
 </blockquote>
 <pre>string message() const;</pre>
 <blockquote>
   <p><i>Returns:</i> <code>category().message( value() )</code>.</p>
-  <p><i>Throws:</i> Nothing.</p>
 </blockquote>
 <pre>operator unspecified-bool-type () const;</pre>
 <blockquote>
@@ -658,90 +646,52 @@ observers</a></h3>
   <code>int</code>) that can occur with <code>bool</code> are not allowed, 
   eliminating some sources of user error. One possible implementation choice for 
   this type is pointer to member. <i>--end note</i> <i>]</i></p>
-</blockquote>
-  <h2><a name="throws-object"><code>throws</code> object</a></h2>
-  <pre>extern error_code throws;</pre>
-<p>The predefined <code>error_code</code> object <code>throws</code> is supplied 
-for use as a &quot;throw on error&quot; tag.</p>
-<h2><a name="Semantics-of-throws">Semantics of <code>throws</code></a> object</h2>
-<p>Functions that specify an argument in the form <code>error_code&amp; ec=throws</code>, 
-with appropriate namespace qualifiers, have the following error handling 
-semantics:</p>
-<blockquote>
-  <p><i>Postconditions:</i></p>
-  <blockquote>
-    <p>If <code>&amp;ec != &amp;throws</code> and an error occurred:</p>
-    <ul>
-      <li> <code>ec.value()</code> returns the implementation specific error 
-      number for the particular error that occurred.</li>
-      <li><code>ec.category()</code> returns the <code>
-    <a href="#Class-error_category">error_category</a></code> for <code>ec.value()</code>.</li>
-    </ul>
-    <p>if <code>&amp;ec != &amp;throws</code> and an error did not occur, <code>ec.clear()</code>.</p>
-  </blockquote>
-  <p><i>Throws:</i></p>
-  <blockquote>
-  <p>If an error occurs and <code>&amp;ec == &amp;throws</code>, throws an exception of type
-  <code><a href="#Class-system_error">system_error</a></code> or of a type 
-  derived from <code><a href="#Class-system_error">system_error</a></code>. The 
-  exception's <code>code()</code> member function returns a reference to an
-  <code>error_code</code> object with the behavior specified in <i>
-  Postconditions</i>.</p>
-  </blockquote>
 </blockquote>
 <h2><a name="Non-member-functions">Non-member functions</a></h2>
-  <pre>bool operator==( const error_code &amp; lhs, const error_code &amp; rhs );</pre>
+  <pre>bool operator==( const error_code &amp; lhs, const error_code &amp; rhs ) noexcept;</pre>
 <blockquote>
   <p><i>Returns:</i> <code>lhs.category() == rhs.category() &amp;&amp; lhs.value() == 
   rhs.value()</code>.</p>
-  <p><i>Throws: </i>Nothing.</p>
 </blockquote>
-<pre>bool operator==( const error_code &amp; code, const error_condition &amp; condition );
-bool operator==( const error_condition &amp; condition, const error_code &amp; code );</pre>
+<pre>bool operator==( const error_code &amp; code, const error_condition &amp; condition ) noexcept;
+bool operator==( const error_condition &amp; condition, const error_code &amp; code ) noexcept;</pre>
 <blockquote>
   <p><i>Returns:</i> <code>code.category().equivalent( code.value(), condition )<br>
   || condition.category().equivalent( code, condition.value() )</code>.</p>
-  <p><i>Throws: </i>Nothing.</p>
 </blockquote>
-<pre>bool operator==( const error_condition &amp; lhs, const error_condition &amp; rhs );</pre>
+<pre>bool operator==( const error_condition &amp; lhs, const error_condition &amp; rhs ) noexcept;</pre>
 <blockquote>
   <p><i>Returns:</i> <code>lhs.category() == rhs.category() &amp;&amp; lhs.value() == 
   rhs.value()</code>.</p>
-  <p><i>Throws: </i>Nothing.</p>
 </blockquote>
-<pre>bool operator!=( const error_code &amp; lhs, const error_code &amp; rhs );</pre>
+<pre>bool operator!=( const error_code &amp; lhs, const error_code &amp; rhs ) noexcept;</pre>
 <blockquote>
   <p><i>Returns:</i> <code>!(lhs == rhs )</code>.</p>
-  <p><i>Throws: </i>Nothing.</p>
 </blockquote>
-<pre>bool operator!=( const error_code &amp; code, const error_condition &amp; condition );
-bool operator!=( const error_condition &amp; condition, const error_code &amp; code );</pre>
+<pre>bool operator!=( const error_code &amp; code, const error_condition &amp; condition ) noexcept;
+bool operator!=( const error_condition &amp; condition, const error_code &amp; code ) noexcept;</pre>
 <blockquote>
   <p><i>Returns:</i><code> !( code ==&nbsp; condition )</code>.</p>
-  <p><i>Throws: </i>Nothing.</p>
 </blockquote>
-<pre>bool operator!=( const error_condition &amp; lhs, const error_condition &amp; rhs );</pre>
+<pre>bool operator!=( const error_condition &amp; lhs, const error_condition &amp; rhs ) noexcept;</pre>
 <blockquote>
   <p><i>Returns:</i> <code>!(lhs == rhs )</code>.</p>
-  <p><i>Throws: </i>Nothing.</p>
 </blockquote>
-<pre>bool operator&lt;( const error_code &amp; lhs, const error_code &amp; rhs );</pre>
+<pre>bool operator&lt;( const error_code &amp; lhs, const error_code &amp; rhs ) noexcept;</pre>
 <blockquote>
   <p><i>Returns:</i> <code>lhs.category() &lt; rhs.category()<br>
   &nbsp; || (lhs.category() == rhs.category() &amp;&amp; lhs.value() &lt; rhs.value())</code>.</p>
-  <p><i>Throws: </i>Nothing.</p>
 </blockquote>
-<pre>bool operator&lt;( const error_condition &amp; lhs, const error_condition &amp; rhs );</pre>
+<pre>bool operator&lt;( const error_condition &amp; lhs, const error_condition &amp; rhs ) noexcept;</pre>
 <blockquote>
   <p><i>Returns:</i> <code>lhs.category() &lt; rhs.category()<br>
   &nbsp; || (lhs.category() == rhs.category() &amp;&amp; lhs.value() &lt; rhs.value())</code>.</p>
-  <p><i>Throws: </i>Nothing.</p>
 </blockquote>
-<pre>error_code make_error_code( errc::errc_t e );</pre>
+<pre>error_code make_error_code( errc::errc_t e ) noexcept;</pre>
 <blockquote>
   <p><i>Returns:</i> <code>error_code( e, generic_category())</code>.</p>
 </blockquote>
-<pre>error_condition make_error_condition( errc::errc_t e );</pre>
+<pre>error_condition make_error_condition( errc::errc_t e ) noexcept;</pre>
 <blockquote>
   <p><i>Returns:</i> <code>error_condition( static_cast&lt;int&gt;( e ), generic_category())</code>.</p>
 </blockquote>
@@ -758,6 +708,37 @@ bool operator!=( const error_condition &amp; condition, const error_code &amp; c
   <p><i>Returns: </i>&nbsp;A hash value representing <code>ec</code>.</p>
 </blockquote>
 
+<h2><a name="Function-boost-throws">Function <code>boost::throws()</code></a></h2>
+
+  <pre>system::error_code&amp; throws();</pre>
+<blockquote>
+<p><i>Returns:</i> A <code>system::error_code</code> reference 
+for use in some user-defined function signature as a &quot;throw on error&quot; tag.</p>
+<p><i>Remark:</i> The only valid use for the returned reference is to test its 
+address for equality or inequality to the address of the reference returned by 
+another call to throws(). The returned reference itself has been poisoned so 
+that an attempt to dereference it will fail.</p>
+<p>[<i>Example: </i>Example of a function that uses the <code>throws()</code> idiom:</p>
+  <blockquote>
+  <pre>int divide(int dividend, int divisor,
+           boost::system::error_code&amp; ec = boost::throws())
+{
+  if (divisor == 0)                             // is there an error?
+  {
+    if (&amp;ec == &amp;boost::throws())                // throw on error
+      throw &quot;oops!&quot;;                            // whatever exception you prefer
+    ec = error_code(EDOM, generic_category());  // report error via error_code
+    return 0;
+  }
+
+  if (&amp;ec != &amp;boost::throws())                  // error reporting via error_code
+    ec.clear();
+  return dividend / divisor;
+}</pre>
+  </blockquote>
+  <p>&mdash; <i>end Example</i>]</p>
+</blockquote>
+
 <h2><a name="Header-system_error">Header &lt;boost/system/system_error.hpp&gt;</a></h2>
 
 <h3><a name="Class-system_error">Class <code>
@@ -840,10 +821,10 @@ application program interfaces.</p>
 <hr>
 
 <p>Revised 
-<!--webbot bot="Timestamp" S-Type="EDITED" S-Format="%B %d, %Y" startspan -->June 29, 2010<!--webbot bot="Timestamp" endspan i-checksum="14432" --> </font>
+<!--webbot bot="Timestamp" S-Type="EDITED" S-Format="%B %d, %Y" startspan -->September 07, 2017<!--webbot bot="Timestamp" endspan i-checksum="38006" --> </font>
 </p>
 
-<p><EFBFBD> Copyright Beman Dawes, 2006, 2007, 2008</p>
+<p><EFBFBD> Copyright Beman Dawes, 2006, 2007, 2008, 2013</p>
 
 <p>Distributed under the Boost Software License, Version 1.0. See
 <a href="http://www.boost.org/LICENSE_1_0.txt">www.boost.org/LICENSE_1_0.txt</a></p>

include/boost/cerrno.hpp

@@ -7,8 +7,8 @@
 
 //  See library home page at http://www.boost.org/libs/system
 
-#ifndef BOOST_CERRNO_HPP
-#define BOOST_CERRNO_HPP
+#ifndef BOOST_SYSTEM_CERRNO_HPP
+#define BOOST_SYSTEM_CERRNO_HPP
 
 #include <cerrno>
 

include/boost/system/config.hpp

@@ -7,14 +7,33 @@
 
 //  See http://www.boost.org/libs/system for documentation.
 
-#ifndef BOOST_SYSTEM_CONFIG_HPP                  
+#ifndef BOOST_SYSTEM_CONFIG_HPP
 #define BOOST_SYSTEM_CONFIG_HPP
 
 #include <boost/config.hpp>
 #include <boost/system/api_config.hpp>  // for BOOST_POSIX_API or BOOST_WINDOWS_API
 
-// This header implements separate compilation features as described in
+// This header implemented separate compilation features as described in
 // http://www.boost.org/more/separate_compilation.html
+//
+// It's only retained for compatibility now that the library is header-only.
+
+//  normalize macros  ------------------------------------------------------------------//
+
+#if !defined(BOOST_SYSTEM_DYN_LINK) && !defined(BOOST_SYSTEM_STATIC_LINK) \
+  && !defined(BOOST_ALL_DYN_LINK) && !defined(BOOST_ALL_STATIC_LINK)
+# define BOOST_SYSTEM_STATIC_LINK
+#endif
+
+#if defined(BOOST_ALL_DYN_LINK) && !defined(BOOST_SYSTEM_DYN_LINK)
+# define BOOST_SYSTEM_DYN_LINK 
+#elif defined(BOOST_ALL_STATIC_LINK) && !defined(BOOST_SYSTEM_STATIC_LINK)
+# define BOOST_SYSTEM_STATIC_LINK 
+#endif
+
+#if defined(BOOST_SYSTEM_DYN_LINK) && defined(BOOST_SYSTEM_STATIC_LINK)
+# error Must not define both BOOST_SYSTEM_DYN_LINK and BOOST_SYSTEM_STATIC_LINK
+#endif
 
 //  enable dynamic or static linking as requested --------------------------------------//
 
@@ -28,25 +47,4 @@
 # define BOOST_SYSTEM_DECL
 #endif
 
-//  enable automatic library variant selection  ----------------------------------------// 
-
-#if !defined(BOOST_SYSTEM_SOURCE) && !defined(BOOST_ALL_NO_LIB) && !defined(BOOST_SYSTEM_NO_LIB)
-//
-// Set the name of our library, this will get undef'ed by auto_link.hpp
-// once it's done with it:
-//
-#define BOOST_LIB_NAME boost_system
-//
-// If we're importing code from a dll, then tell auto_link.hpp about it:
-//
-#if defined(BOOST_ALL_DYN_LINK) || defined(BOOST_SYSTEM_DYN_LINK)
-#  define BOOST_DYN_LINK
-#endif
-//
-// And include the header that does the work:
-//
-#include <boost/config/auto_link.hpp>
-#endif  // auto-linking disabled
-
 #endif // BOOST_SYSTEM_CONFIG_HPP
-

include/boost/system/cygwin_error.hpp

@@ -7,8 +7,8 @@
 
 //  See library home page at http://www.boost.org/libs/system
 
-#ifndef BOOST_CYGWIN_ERROR_HPP
-#define BOOST_CYGWIN_ERROR_HPP
+#ifndef BOOST_SYSTEM_CYGWIN_ERROR_HPP
+#define BOOST_SYSTEM_CYGWIN_ERROR_HPP
 
 //  This header is effectively empty for compiles on operating systems where
 //  it is not applicable.
@@ -53,4 +53,4 @@ namespace boost
 
 #endif  // __CYGWIN__
 
-#endif  // BOOST_CYGWIN_ERROR_HPP
+#endif  // BOOST_SYSTEM_CYGWIN_ERROR_HPP

include/boost/system/detail/config.hpp

@@ -0,0 +1,53 @@
+#ifndef BOOST_SYSTEM_DETAIL_CONFIG_HPP_INCLUDED
+#define BOOST_SYSTEM_DETAIL_CONFIG_HPP_INCLUDED
+
+// Copyright 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)
+//
+// See http://www.boost.org/libs/system for documentation.
+
+#include <boost/config.hpp>
+#include <boost/config/workaround.hpp>
+
+// BOOST_SYSTEM_HAS_SYSTEM_ERROR
+
+#if !defined(BOOST_NO_CXX11_HDR_SYSTEM_ERROR)
+# define BOOST_SYSTEM_HAS_SYSTEM_ERROR
+#endif
+
+#if BOOST_WORKAROUND(BOOST_GCC, < 40600)
+// g++ 4.4's <map> is not good enough
+# undef BOOST_SYSTEM_HAS_SYSTEM_ERROR
+#endif
+
+// BOOST_SYSTEM_NOEXCEPT
+// Retained for backward compatibility
+
+#define BOOST_SYSTEM_NOEXCEPT BOOST_NOEXCEPT
+
+// BOOST_SYSTEM_HAS_CONSTEXPR
+
+#if !defined(BOOST_NO_CXX14_CONSTEXPR)
+# define BOOST_SYSTEM_HAS_CONSTEXPR
+#endif
+
+#if defined(BOOST_SYSTEM_HAS_CONSTEXPR)
+# define BOOST_SYSTEM_CONSTEXPR constexpr
+#else
+# define BOOST_SYSTEM_CONSTEXPR
+#endif
+
+// BOOST_SYSTEM_REQUIRE_CONST_INIT
+
+#define BOOST_SYSTEM_REQUIRE_CONST_INIT
+
+#if defined(__has_cpp_attribute)
+#if __has_cpp_attribute(clang::require_constant_initialization)
+# undef BOOST_SYSTEM_REQUIRE_CONST_INIT
+# define BOOST_SYSTEM_REQUIRE_CONST_INIT [[clang::require_constant_initialization]]
+#endif
+#endif
+
+#endif // BOOST_SYSTEM_DETAIL_CONFIG_HPP_INCLUDED

include/boost/system/detail/generic_category.hpp

@@ -0,0 +1,94 @@
+// Implementation details of generic_error_category
+//
+// Copyright 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)
+//
+// See library home page at http://www.boost.org/libs/system
+
+#include <cstring>
+
+namespace boost
+{
+
+namespace system
+{
+
+namespace detail
+{
+
+#if defined(__GLIBC__)
+
+// glibc has two incompatible strerror_r definitions
+
+inline char const * strerror_r_helper( char const * r, char const * ) BOOST_NOEXCEPT
+{
+    return r;
+}
+
+inline char const * strerror_r_helper( int r, char const * buffer ) BOOST_NOEXCEPT
+{
+    return r == 0? buffer: "Unknown error";
+}
+
+inline char const * generic_error_category_message( int ev, char * buffer, std::size_t len ) BOOST_NOEXCEPT
+{
+    return strerror_r_helper( strerror_r( ev, buffer, len ), buffer );
+}
+
+inline std::string generic_error_category_message( int ev )
+{
+    char buffer[ 128 ];
+    return generic_error_category_message( ev, buffer, sizeof( buffer ) );
+}
+
+#else
+
+// std::strerror is thread-safe on everything else, incl. Windows
+
+# if defined( BOOST_MSVC )
+#  pragma warning( push )
+#  pragma warning( disable: 4996 )
+# endif
+
+inline std::string generic_error_category_message( int ev )
+{
+    char const * m = std::strerror( ev );
+    return m? m: "Unknown error";
+}
+
+inline char const * generic_error_category_message( int ev, char * buffer, std::size_t len ) BOOST_NOEXCEPT
+{
+    if( len == 0 )
+    {
+        return buffer;
+    }
+
+    if( len == 1 )
+    {
+        buffer[0] = 0;
+        return buffer;
+    }
+
+    char const * m = std::strerror( ev );
+
+    if( m == 0 ) return "Unknown error";
+
+    std::strncpy( buffer, m, len - 1 );
+    buffer[ len-1 ] = 0;
+
+    return buffer;
+}
+
+# if defined( BOOST_MSVC )
+#  pragma warning( pop )
+# endif
+
+#endif
+
+} // namespace detail
+
+} // namespace system
+
+} // namespace boost

include/boost/system/detail/std_interoperability.hpp

@@ -0,0 +1,141 @@
+// Support for interoperability between Boost.System and <system_error>
+//
+// Copyright 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)
+//
+// See library home page at http://www.boost.org/libs/system
+
+#include <system_error>
+#include <map>
+#include <memory>
+
+//
+
+namespace boost
+{
+
+namespace system
+{
+
+namespace detail
+{
+
+class BOOST_SYMBOL_VISIBLE std_category: public std::error_category
+{
+private:
+
+    boost::system::error_category const * pc_;
+
+public:
+
+    explicit std_category( boost::system::error_category const * pc ): pc_( pc )
+    {
+    }
+
+    virtual const char * name() const BOOST_NOEXCEPT
+    {
+        return pc_->name();
+    }
+
+    virtual std::string message( int ev ) const
+    {
+        return pc_->message( ev );
+    }
+
+    virtual std::error_condition default_error_condition( int ev ) const BOOST_NOEXCEPT
+    {
+        return pc_->default_error_condition( ev );
+    }
+
+    virtual bool equivalent( int code, const std::error_condition & condition ) const BOOST_NOEXCEPT;
+    virtual bool equivalent( const std::error_code & code, int condition ) const BOOST_NOEXCEPT;
+};
+
+inline std::error_category const & to_std_category( boost::system::error_category const & cat )
+{
+    typedef std::map< boost::system::error_category const *, std::unique_ptr<std_category> > map_type;
+
+    static map_type map_;
+
+    map_type::iterator i = map_.find( &cat );
+
+    if( i == map_.end() )
+    {
+        std::unique_ptr<std_category> p( new std_category( &cat ) );
+
+        std::pair<map_type::iterator, bool> r = map_.insert( map_type::value_type( &cat, std::move( p ) ) );
+
+        i = r.first;
+    }
+
+    return *i->second;
+}
+
+inline bool std_category::equivalent( int code, const std::error_condition & condition ) const BOOST_NOEXCEPT
+{
+    if( condition.category() == *this )
+    {
+        boost::system::error_condition bn( condition.value(), *pc_ );
+        return pc_->equivalent( code, bn );
+    }
+    else if( condition.category() == std::generic_category() || condition.category() == boost::system::generic_category() )
+    {
+        boost::system::error_condition bn( condition.value(), boost::system::generic_category() );
+        return pc_->equivalent( code, bn );
+    }
+
+#ifndef BOOST_NO_RTTI
+
+    else if( std_category const* pc2 = dynamic_cast< std_category const* >( &condition.category() ) )
+    {
+        boost::system::error_condition bn( condition.value(), *pc2->pc_ );
+        return pc_->equivalent( code, bn );
+    }
+
+#endif
+
+    else
+    {
+        return default_error_condition( code ) == condition;
+    }
+}
+
+inline bool std_category::equivalent( const std::error_code & code, int condition ) const BOOST_NOEXCEPT
+{
+    if( code.category() == *this )
+    {
+        boost::system::error_code bc( code.value(), *pc_ );
+        return pc_->equivalent( bc, condition );
+    }
+    else if( code.category() == std::generic_category() || code.category() == boost::system::generic_category() )
+    {
+        boost::system::error_code bc( code.value(), boost::system::generic_category() );
+        return pc_->equivalent( bc, condition );
+    }
+
+#ifndef BOOST_NO_RTTI
+
+    else if( std_category const* pc2 = dynamic_cast< std_category const* >( &code.category() ) )
+    {
+        boost::system::error_code bc( code.value(), *pc2->pc_ );
+        return pc_->equivalent( bc, condition );
+    }
+#endif
+
+    else if( *pc_ == boost::system::generic_category() )
+    {
+        return std::generic_category().equivalent( code, condition );
+    }
+    else
+    {
+        return false;
+    }
+}
+
+} // namespace detail
+
+} // namespace system
+
+} // namespace boost

include/boost/system/detail/system_category_posix.hpp

@@ -0,0 +1,132 @@
+// POSIX-specific implementation details of system_error_category
+//
+// Copyright 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)
+//
+// See library home page at http://www.boost.org/libs/system
+
+namespace boost
+{
+
+namespace system
+{
+
+namespace detail
+{
+
+inline bool is_generic_value( int ev ) BOOST_NOEXCEPT
+{
+    using namespace errc;
+
+    static int const gen[] =
+    {
+        success,
+        address_family_not_supported,
+        address_in_use,
+        address_not_available,
+        already_connected,
+        argument_list_too_long,
+        argument_out_of_domain,
+        bad_address,
+        bad_file_descriptor,
+        bad_message,
+        broken_pipe,
+        connection_aborted,
+        connection_already_in_progress,
+        connection_refused,
+        connection_reset,
+        cross_device_link,
+        destination_address_required,
+        device_or_resource_busy,
+        directory_not_empty,
+        executable_format_error,
+        file_exists,
+        file_too_large,
+        filename_too_long,
+        function_not_supported,
+        host_unreachable,
+        identifier_removed,
+        illegal_byte_sequence,
+        inappropriate_io_control_operation,
+        interrupted,
+        invalid_argument,
+        invalid_seek,
+        io_error,
+        is_a_directory,
+        message_size,
+        network_down,
+        network_reset,
+        network_unreachable,
+        no_buffer_space,
+        no_child_process,
+        no_link,
+        no_lock_available,
+        no_message_available,
+        no_message,
+        no_protocol_option,
+        no_space_on_device,
+        no_stream_resources,
+        no_such_device_or_address,
+        no_such_device,
+        no_such_file_or_directory,
+        no_such_process,
+        not_a_directory,
+        not_a_socket,
+        not_a_stream,
+        not_connected,
+        not_enough_memory,
+        not_supported,
+        operation_canceled,
+        operation_in_progress,
+        operation_not_permitted,
+        operation_not_supported,
+        operation_would_block,
+        owner_dead,
+        permission_denied,
+        protocol_error,
+        protocol_not_supported,
+        read_only_file_system,
+        resource_deadlock_would_occur,
+        resource_unavailable_try_again,
+        result_out_of_range,
+        state_not_recoverable,
+        stream_timeout,
+        text_file_busy,
+        timed_out,
+        too_many_files_open_in_system,
+        too_many_files_open,
+        too_many_links,
+        too_many_symbolic_link_levels,
+        value_too_large,
+        wrong_protocol_type
+    };
+
+    int const n = sizeof( gen ) / sizeof( gen[0] );
+
+    for( int i = 0; i < n; ++i )
+    {
+        if( ev == gen[ i ] ) return true;
+    }
+
+    return false;
+}
+
+inline error_condition system_category_default_error_condition_posix( int ev ) BOOST_NOEXCEPT
+{
+    if( is_generic_value( ev ) )
+    {
+        return error_condition( ev, generic_category() );
+    }
+    else
+    {
+        return error_condition( ev, system_category() );
+    }
+}
+
+} // namespace detail
+
+} // namespace system
+
+} // namespace boost

include/boost/system/detail/system_category_win32.hpp

@@ -0,0 +1,306 @@
+// Windows implementation of system_error_category
+//
+// Copyright Beman Dawes 2002, 2006
+// Copyright (c) Microsoft Corporation 2014
+// Copyright 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)
+//
+// See library home page at http://www.boost.org/libs/system
+
+#include <boost/winapi/error_codes.hpp>
+#include <boost/winapi/error_handling.hpp>
+#include <boost/winapi/character_code_conversion.hpp>
+#include <boost/winapi/local_memory.hpp>
+#include <cstdio>
+
+//
+
+namespace boost
+{
+
+namespace system
+{
+
+namespace detail
+{
+
+#if ( defined(_MSC_VER) && _MSC_VER < 1900 ) || ( defined(__MINGW32__) && !defined(__MINGW64_VERSION_MAJOR) )
+
+inline char const * unknown_message_win32( int ev, char * buffer, std::size_t len )
+{
+# if defined( BOOST_MSVC )
+#  pragma warning( push )
+#  pragma warning( disable: 4996 )
+# endif
+
+    _snprintf( buffer, len - 1, "Unknown error (%d)", ev );
+
+    buffer[ len - 1 ] = 0;
+    return buffer;
+
+# if defined( BOOST_MSVC )
+#  pragma warning( pop )
+# endif
+}
+
+#else
+
+inline char const * unknown_message_win32( int ev, char * buffer, std::size_t len )
+{
+    std::snprintf( buffer, len, "Unknown error (%d)", ev );
+    return buffer;
+}
+
+#endif
+
+inline char const * system_category_message_win32( int ev, char * buffer, std::size_t len ) BOOST_NOEXCEPT
+{
+    if( len == 0 )
+    {
+        return buffer;
+    }
+
+    if( len == 1 )
+    {
+        buffer[0] = 0;
+        return buffer;
+    }
+
+#if defined(__GNUC__)
+# define BOOST_SYSTEM_ALLOCA __builtin_alloca
+#else
+# define BOOST_SYSTEM_ALLOCA _alloca
+#endif
+
+    wchar_t * wbuffer = static_cast<wchar_t*>( BOOST_SYSTEM_ALLOCA( len * sizeof( wchar_t ) ) );
+
+#undef BOOST_SYSTEM_ALLOCA
+
+    using namespace boost::winapi;
+
+    DWORD_ retval = boost::winapi::FormatMessageW(
+        FORMAT_MESSAGE_FROM_SYSTEM_ | FORMAT_MESSAGE_IGNORE_INSERTS_,
+        NULL,
+        ev,
+        MAKELANGID_( LANG_NEUTRAL_, SUBLANG_DEFAULT_ ), // Default language
+        wbuffer,
+        static_cast<DWORD_>( len ),
+        NULL
+    );
+
+    if( retval == 0 )
+    {
+        return unknown_message_win32( ev, buffer, len );
+    }
+
+    int r = boost::winapi::WideCharToMultiByte( CP_ACP_, 0, wbuffer, -1, buffer, static_cast<int>( len ), NULL, NULL );
+
+    if( r == 0 )
+    {
+        return unknown_message_win32( ev, buffer, len );
+    }
+
+    --r; // exclude null terminator
+
+    while( r > 0 && ( buffer[ r-1 ] == '\n' || buffer[ r-1 ] == '\r' ) )
+    {
+        buffer[ --r ] = 0;
+    }
+
+    if( r > 0 && buffer[ r-1 ] == '.' )
+    {
+        buffer[ --r ] = 0;
+    }
+
+    return buffer;
+}
+
+struct local_free
+{
+    void * p_;
+
+    ~local_free()
+    {
+        boost::winapi::LocalFree( p_ );
+    }
+};
+
+inline std::string unknown_message_win32( int ev )
+{
+    char buffer[ 38 ];
+    return unknown_message_win32( ev, buffer, sizeof( buffer ) );
+}
+
+inline std::string system_category_message_win32( int ev )
+{
+    using namespace boost::winapi;
+
+    wchar_t * lpMsgBuf = 0;
+
+    DWORD_ retval = boost::winapi::FormatMessageW(
+        FORMAT_MESSAGE_ALLOCATE_BUFFER_ | FORMAT_MESSAGE_FROM_SYSTEM_ | FORMAT_MESSAGE_IGNORE_INSERTS_,
+        NULL,
+        ev,
+        MAKELANGID_( LANG_NEUTRAL_, SUBLANG_DEFAULT_ ), // Default language
+        (LPWSTR_) &lpMsgBuf,
+        0,
+        NULL
+    );
+
+    if( retval == 0 )
+    {
+        return unknown_message_win32( ev );
+    }
+
+    local_free lf_ = { lpMsgBuf };
+
+    int r = boost::winapi::WideCharToMultiByte( CP_ACP_, 0, lpMsgBuf, -1, 0, 0, NULL, NULL );
+
+    if( r == 0 )
+    {
+        return unknown_message_win32( ev );
+    }
+
+    std::string buffer( r, char() );
+
+    r = boost::winapi::WideCharToMultiByte( CP_ACP_, 0, lpMsgBuf, -1, &buffer[0], r, NULL, NULL );
+
+    if( r == 0 )
+    {
+        return unknown_message_win32( ev );
+    }
+
+    --r; // exclude null terminator
+
+    while( r > 0 && ( buffer[ r-1 ] == '\n' || buffer[ r-1 ] == '\r' ) )
+    {
+        --r;
+    }
+
+    if( r > 0 && buffer[ r-1 ] == '.' )
+    {
+        --r;
+    }
+
+    buffer.resize( r );
+
+    return buffer;
+}
+
+inline error_condition system_category_default_error_condition_win32( int ev ) BOOST_NOEXCEPT
+{
+    // When using the Windows Runtime, most system errors are reported as HRESULTs.
+    // We want to map the common Win32 errors to their equivalent error condition,
+    // whether or not they are reported via an HRESULT.
+
+#define BOOST_SYSTEM_FAILED(hr)           ((hr) < 0)
+#define BOOST_SYSTEM_HRESULT_FACILITY(hr) (((hr) >> 16) & 0x1fff)
+#define BOOST_SYSTEM_HRESULT_CODE(hr)     ((hr) & 0xFFFF)
+#define BOOST_SYSTEM_FACILITY_WIN32       7
+
+    if( BOOST_SYSTEM_FAILED( ev ) && BOOST_SYSTEM_HRESULT_FACILITY( ev ) == BOOST_SYSTEM_FACILITY_WIN32 )
+    {
+        ev = BOOST_SYSTEM_HRESULT_CODE( ev );
+    }
+
+#undef BOOST_SYSTEM_FAILED
+#undef BOOST_SYSTEM_HRESULT_FACILITY
+#undef BOOST_SYSTEM_HRESULT_CODE
+#undef BOOST_SYSTEM_FACILITY_WIN32
+
+    using namespace boost::winapi;
+    using namespace errc;
+
+    // Windows system -> posix_errno decode table
+    // see WinError.h comments for descriptions of errors
+
+    switch ( ev )
+    {
+    case 0: return make_error_condition( success );
+
+    case ERROR_ACCESS_DENIED_: return make_error_condition( permission_denied );
+    case ERROR_ALREADY_EXISTS_: return make_error_condition( file_exists );
+    case ERROR_BAD_UNIT_: return make_error_condition( no_such_device );
+    case ERROR_BUFFER_OVERFLOW_: return make_error_condition( filename_too_long );
+    case ERROR_BUSY_: return make_error_condition( device_or_resource_busy );
+    case ERROR_BUSY_DRIVE_: return make_error_condition( device_or_resource_busy );
+    case ERROR_CANNOT_MAKE_: return make_error_condition( permission_denied );
+    case ERROR_CANTOPEN_: return make_error_condition( io_error );
+    case ERROR_CANTREAD_: return make_error_condition( io_error );
+    case ERROR_CANTWRITE_: return make_error_condition( io_error );
+    case ERROR_CURRENT_DIRECTORY_: return make_error_condition( permission_denied );
+    case ERROR_DEV_NOT_EXIST_: return make_error_condition( no_such_device );
+    case ERROR_DEVICE_IN_USE_: return make_error_condition( device_or_resource_busy );
+    case ERROR_DIR_NOT_EMPTY_: return make_error_condition( directory_not_empty );
+    case ERROR_DIRECTORY_: return make_error_condition( invalid_argument ); // WinError.h: "The directory name is invalid"
+    case ERROR_DISK_FULL_: return make_error_condition( no_space_on_device );
+    case ERROR_FILE_EXISTS_: return make_error_condition( file_exists );
+    case ERROR_FILE_NOT_FOUND_: return make_error_condition( no_such_file_or_directory );
+    case ERROR_HANDLE_DISK_FULL_: return make_error_condition( no_space_on_device );
+    case ERROR_INVALID_ACCESS_: return make_error_condition( permission_denied );
+    case ERROR_INVALID_DRIVE_: return make_error_condition( no_such_device );
+    case ERROR_INVALID_FUNCTION_: return make_error_condition( function_not_supported );
+    case ERROR_INVALID_HANDLE_: return make_error_condition( invalid_argument );
+    case ERROR_INVALID_NAME_: return make_error_condition( invalid_argument );
+    case ERROR_LOCK_VIOLATION_: return make_error_condition( no_lock_available );
+    case ERROR_LOCKED_: return make_error_condition( no_lock_available );
+    case ERROR_NEGATIVE_SEEK_: return make_error_condition( invalid_argument );
+    case ERROR_NOACCESS_: return make_error_condition( permission_denied );
+    case ERROR_NOT_ENOUGH_MEMORY_: return make_error_condition( not_enough_memory );
+    case ERROR_NOT_READY_: return make_error_condition( resource_unavailable_try_again );
+    case ERROR_NOT_SAME_DEVICE_: return make_error_condition( cross_device_link );
+    case ERROR_OPEN_FAILED_: return make_error_condition( io_error );
+    case ERROR_OPEN_FILES_: return make_error_condition( device_or_resource_busy );
+    case ERROR_OPERATION_ABORTED_: return make_error_condition( operation_canceled );
+    case ERROR_OUTOFMEMORY_: return make_error_condition( not_enough_memory );
+    case ERROR_PATH_NOT_FOUND_: return make_error_condition( no_such_file_or_directory );
+    case ERROR_READ_FAULT_: return make_error_condition( io_error );
+    case ERROR_RETRY_: return make_error_condition( resource_unavailable_try_again );
+    case ERROR_SEEK_: return make_error_condition( io_error );
+    case ERROR_SHARING_VIOLATION_: return make_error_condition( permission_denied );
+    case ERROR_TOO_MANY_OPEN_FILES_: return make_error_condition( too_many_files_open );
+    case ERROR_WRITE_FAULT_: return make_error_condition( io_error );
+    case ERROR_WRITE_PROTECT_: return make_error_condition( permission_denied );
+    case WSAEACCES_: return make_error_condition( permission_denied );
+    case WSAEADDRINUSE_: return make_error_condition( address_in_use );
+    case WSAEADDRNOTAVAIL_: return make_error_condition( address_not_available );
+    case WSAEAFNOSUPPORT_: return make_error_condition( address_family_not_supported );
+    case WSAEALREADY_: return make_error_condition( connection_already_in_progress );
+    case WSAEBADF_: return make_error_condition( bad_file_descriptor );
+    case WSAECONNABORTED_: return make_error_condition( connection_aborted );
+    case WSAECONNREFUSED_: return make_error_condition( connection_refused );
+    case WSAECONNRESET_: return make_error_condition( connection_reset );
+    case WSAEDESTADDRREQ_: return make_error_condition( destination_address_required );
+    case WSAEFAULT_: return make_error_condition( bad_address );
+    case WSAEHOSTUNREACH_: return make_error_condition( host_unreachable );
+    case WSAEINPROGRESS_: return make_error_condition( operation_in_progress );
+    case WSAEINTR_: return make_error_condition( interrupted );
+    case WSAEINVAL_: return make_error_condition( invalid_argument );
+    case WSAEISCONN_: return make_error_condition( already_connected );
+    case WSAEMFILE_: return make_error_condition( too_many_files_open );
+    case WSAEMSGSIZE_: return make_error_condition( message_size );
+    case WSAENAMETOOLONG_: return make_error_condition( filename_too_long );
+    case WSAENETDOWN_: return make_error_condition( network_down );
+    case WSAENETRESET_: return make_error_condition( network_reset );
+    case WSAENETUNREACH_: return make_error_condition( network_unreachable );
+    case WSAENOBUFS_: return make_error_condition( no_buffer_space );
+    case WSAENOPROTOOPT_: return make_error_condition( no_protocol_option );
+    case WSAENOTCONN_: return make_error_condition( not_connected );
+    case WSAENOTSOCK_: return make_error_condition( not_a_socket );
+    case WSAEOPNOTSUPP_: return make_error_condition( operation_not_supported );
+    case WSAEPROTONOSUPPORT_: return make_error_condition( protocol_not_supported );
+    case WSAEPROTOTYPE_: return make_error_condition( wrong_protocol_type );
+    case WSAETIMEDOUT_: return make_error_condition( timed_out );
+    case WSAEWOULDBLOCK_: return make_error_condition( operation_would_block );
+
+    default: return error_condition( ev, system_category() );
+    }
+}
+
+} // namespace detail
+
+} // namespace system
+
+} // namespace boost

include/boost/system/linux_error.hpp

@@ -7,8 +7,8 @@
 
 //  See library home page at http://www.boost.org/libs/system
 
-#ifndef BOOST_LINUX_ERROR_HPP
-#define BOOST_LINUX_ERROR_HPP
+#ifndef BOOST_SYSTEM_LINUX_ERROR_HPP
+#define BOOST_SYSTEM_LINUX_ERROR_HPP
 
 //  This header is effectively empty for compiles on operating systems where
 //  it is not applicable.
@@ -89,7 +89,7 @@ namespace boost
       };
     }  // namespace linux_error
 
-# ifndef BOOST_SYSTEM_NO_DEPRECATED
+# ifdef BOOST_SYSTEM_ENABLE_DEPRECATED
     namespace Linux = linux_error;
 # endif
 
@@ -107,4 +107,4 @@ namespace boost
 
 #endif  // Linux
 
-#endif  // BOOST_LINUX_ERROR_HPP
+#endif  // BOOST_SYSTEM_LINUX_ERROR_HPP

include/boost/system/system_error.hpp

@@ -5,13 +5,13 @@
 //  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)
 
-#ifndef BOOST_SYSTEM_ERROR_HPP
-#define BOOST_SYSTEM_ERROR_HPP
+#ifndef BOOST_SYSTEM_SYSTEM_ERROR_HPP
+#define BOOST_SYSTEM_SYSTEM_ERROR_HPP
 
+#include <boost/system/error_code.hpp>
 #include <string>
 #include <stdexcept>
 #include <cassert>
-#include <boost/system/error_code.hpp>
 
 namespace boost
 {
@@ -21,7 +21,7 @@ namespace boost
 
     class BOOST_SYMBOL_VISIBLE system_error : public std::runtime_error
     // BOOST_SYMBOL_VISIBLE is needed by GCC to ensure system_error thrown from a shared
-    // library can be caught. See svn.boost.org/trac/boost/ticket/3697 
+    // library can be caught. See svn.boost.org/trac/boost/ticket/3697
     {
     public:
       system_error( error_code ec )
@@ -44,10 +44,10 @@ namespace boost
         const char * what_arg )
           : std::runtime_error(what_arg), m_error_code(ev,ecat) {}
 
-      virtual ~system_error() throw() {}
+      virtual ~system_error() BOOST_NOEXCEPT_OR_NOTHROW {}
 
-      const error_code &  code() const throw() { return m_error_code; }
-      const char *        what() const throw();
+      const error_code &  code() const BOOST_NOEXCEPT_OR_NOTHROW { return m_error_code; }
+      const char *        what() const BOOST_NOEXCEPT_OR_NOTHROW;
 
     private:
       error_code           m_error_code;
@@ -56,18 +56,22 @@ namespace boost
 
     //  implementation  ------------------------------------------------------//
 
-    inline const char * system_error::what() const throw()
+    inline const char * system_error::what() const BOOST_NOEXCEPT_OR_NOTHROW
     // see http://www.boost.org/more/error_handling.html for lazy build rationale
     {
       if ( m_what.empty() )
       {
+#ifndef BOOST_NO_EXCEPTIONS
         try
+#endif
         {
           m_what = this->std::runtime_error::what();
           if ( !m_what.empty() ) m_what += ": ";
           m_what += m_error_code.message();
         }
+#ifndef BOOST_NO_EXCEPTIONS
         catch (...) { return std::runtime_error::what(); }
+#endif
       }
       return m_what.c_str();
     }
@@ -75,6 +79,6 @@ namespace boost
   } // namespace system
 } // namespace boost
 
-#endif // BOOST_SYSTEM_ERROR_HPP
+#endif // BOOST_SYSTEM_SYSTEM_ERROR_HPP
 
 

include/boost/system/windows_error.hpp

@@ -7,8 +7,8 @@
 
 //  See library home page at http://www.boost.org/libs/system
 
-#ifndef BOOST_WINDOWS_ERROR_HPP
-#define BOOST_WINDOWS_ERROR_HPP
+#ifndef BOOST_SYSTEM_WINDOWS_ERROR_HPP
+#define BOOST_SYSTEM_WINDOWS_ERROR_HPP
 
 //  This header is effectively empty for compiles on operating systems where
 //  it is not applicable.
@@ -18,7 +18,17 @@
 #ifdef BOOST_WINDOWS_API
 
 #include <boost/system/error_code.hpp>
-#include <winerror.h>
+
+//// Neither MinGW or Cygwin versions of winerror.h work if used alone, so on
+//// either of those platforms include the full windows.h
+//
+//#if defined(__MINGW32__) || defined(__CYGWIN__)
+//#include <windows.h>
+//#else
+//#include <winerror.h>
+//#endif
+
+#include <boost/winapi/error_codes.hpp>
 
 namespace boost
 {
@@ -37,59 +47,59 @@ namespace boost
       {
         success = 0,
         // These names and values are based on Windows winerror.h
-        invalid_function = ERROR_INVALID_FUNCTION,
-        file_not_found = ERROR_FILE_NOT_FOUND,
-        path_not_found = ERROR_PATH_NOT_FOUND,
-        too_many_open_files = ERROR_TOO_MANY_OPEN_FILES,
-        access_denied = ERROR_ACCESS_DENIED,
-        invalid_handle = ERROR_INVALID_HANDLE,
-        arena_trashed = ERROR_ARENA_TRASHED,
-        not_enough_memory = ERROR_NOT_ENOUGH_MEMORY,
-        invalid_block = ERROR_INVALID_BLOCK,
-        bad_environment = ERROR_BAD_ENVIRONMENT,
-        bad_format = ERROR_BAD_FORMAT,
-        invalid_access = ERROR_INVALID_ACCESS,
-        outofmemory = ERROR_OUTOFMEMORY,
-        invalid_drive = ERROR_INVALID_DRIVE,
-        current_directory = ERROR_CURRENT_DIRECTORY,
-        not_same_device = ERROR_NOT_SAME_DEVICE,
-        no_more_files = ERROR_NO_MORE_FILES,
-        write_protect = ERROR_WRITE_PROTECT,
-        bad_unit = ERROR_BAD_UNIT,
-        not_ready = ERROR_NOT_READY,
-        bad_command = ERROR_BAD_COMMAND,
-        crc = ERROR_CRC,
-        bad_length = ERROR_BAD_LENGTH,
-        seek = ERROR_SEEK,
-        not_dos_disk = ERROR_NOT_DOS_DISK,
-        sector_not_found = ERROR_SECTOR_NOT_FOUND,
-        out_of_paper = ERROR_OUT_OF_PAPER,
-        write_fault = ERROR_WRITE_FAULT,
-        read_fault = ERROR_READ_FAULT,
-        gen_failure = ERROR_GEN_FAILURE,
-        sharing_violation = ERROR_SHARING_VIOLATION,
-        lock_violation = ERROR_LOCK_VIOLATION,
-        wrong_disk = ERROR_WRONG_DISK,
-        sharing_buffer_exceeded = ERROR_SHARING_BUFFER_EXCEEDED,
-        handle_eof = ERROR_HANDLE_EOF,
-        handle_disk_full= ERROR_HANDLE_DISK_FULL,
-        rem_not_list = ERROR_REM_NOT_LIST,
-        dup_name = ERROR_DUP_NAME,
-        bad_net_path = ERROR_BAD_NETPATH,
-        network_busy = ERROR_NETWORK_BUSY,
+        invalid_function = boost::winapi::ERROR_INVALID_FUNCTION_,
+        file_not_found = boost::winapi::ERROR_FILE_NOT_FOUND_,
+        path_not_found = boost::winapi::ERROR_PATH_NOT_FOUND_,
+        too_many_open_files = boost::winapi::ERROR_TOO_MANY_OPEN_FILES_,
+        access_denied = boost::winapi::ERROR_ACCESS_DENIED_,
+        invalid_handle = boost::winapi::ERROR_INVALID_HANDLE_,
+        arena_trashed = boost::winapi::ERROR_ARENA_TRASHED_,
+        not_enough_memory = boost::winapi::ERROR_NOT_ENOUGH_MEMORY_,
+        invalid_block = boost::winapi::ERROR_INVALID_BLOCK_,
+        bad_environment = boost::winapi::ERROR_BAD_ENVIRONMENT_,
+        bad_format = boost::winapi::ERROR_BAD_FORMAT_,
+        invalid_access = boost::winapi::ERROR_INVALID_ACCESS_,
+        outofmemory = boost::winapi::ERROR_OUTOFMEMORY_,
+        invalid_drive = boost::winapi::ERROR_INVALID_DRIVE_,
+        current_directory = boost::winapi::ERROR_CURRENT_DIRECTORY_,
+        not_same_device = boost::winapi::ERROR_NOT_SAME_DEVICE_,
+        no_more_files = boost::winapi::ERROR_NO_MORE_FILES_,
+        write_protect = boost::winapi::ERROR_WRITE_PROTECT_,
+        bad_unit = boost::winapi::ERROR_BAD_UNIT_,
+        not_ready = boost::winapi::ERROR_NOT_READY_,
+        bad_command = boost::winapi::ERROR_BAD_COMMAND_,
+        crc = boost::winapi::ERROR_CRC_,
+        bad_length = boost::winapi::ERROR_BAD_LENGTH_,
+        seek = boost::winapi::ERROR_SEEK_,
+        not_dos_disk = boost::winapi::ERROR_NOT_DOS_DISK_,
+        sector_not_found = boost::winapi::ERROR_SECTOR_NOT_FOUND_,
+        out_of_paper = boost::winapi::ERROR_OUT_OF_PAPER_,
+        write_fault = boost::winapi::ERROR_WRITE_FAULT_,
+        read_fault = boost::winapi::ERROR_READ_FAULT_,
+        gen_failure = boost::winapi::ERROR_GEN_FAILURE_,
+        sharing_violation = boost::winapi::ERROR_SHARING_VIOLATION_,
+        lock_violation = boost::winapi::ERROR_LOCK_VIOLATION_,
+        wrong_disk = boost::winapi::ERROR_WRONG_DISK_,
+        sharing_buffer_exceeded = boost::winapi::ERROR_SHARING_BUFFER_EXCEEDED_,
+        handle_eof = boost::winapi::ERROR_HANDLE_EOF_,
+        handle_disk_full= boost::winapi::ERROR_HANDLE_DISK_FULL_,
+        rem_not_list = boost::winapi::ERROR_REM_NOT_LIST_,
+        dup_name = boost::winapi::ERROR_DUP_NAME_,
+        bad_net_path = boost::winapi::ERROR_BAD_NETPATH_,
+        network_busy = boost::winapi::ERROR_NETWORK_BUSY_,
         // ...
-        file_exists = ERROR_FILE_EXISTS,
-        cannot_make = ERROR_CANNOT_MAKE,
+        file_exists = boost::winapi::ERROR_FILE_EXISTS_,
+        cannot_make = boost::winapi::ERROR_CANNOT_MAKE_,
         // ...
-        broken_pipe = ERROR_BROKEN_PIPE,
-        open_failed = ERROR_OPEN_FAILED,
-        buffer_overflow = ERROR_BUFFER_OVERFLOW,
-        disk_full= ERROR_DISK_FULL,
+        broken_pipe = boost::winapi::ERROR_BROKEN_PIPE_,
+        open_failed = boost::winapi::ERROR_OPEN_FAILED_,
+        buffer_overflow = boost::winapi::ERROR_BUFFER_OVERFLOW_,
+        disk_full= boost::winapi::ERROR_DISK_FULL_,
         // ...
-        lock_failed = ERROR_LOCK_FAILED,
-        busy = ERROR_BUSY,
-        cancel_violation = ERROR_CANCEL_VIOLATION,
-        already_exists = ERROR_ALREADY_EXISTS
+        lock_failed = boost::winapi::ERROR_LOCK_FAILED_,
+        busy = boost::winapi::ERROR_BUSY_,
+        cancel_violation = boost::winapi::ERROR_CANCEL_VIOLATION_,
+        already_exists = boost::winapi::ERROR_ALREADY_EXISTS_
         // ...
 
         // TODO: add more Windows errors
@@ -97,7 +107,7 @@ namespace boost
 
     }  // namespace windows
 
-# ifndef BOOST_SYSTEM_NO_DEPRECATED
+# ifdef BOOST_SYSTEM_ENABLE_DEPRECATED
     namespace windows = windows_error;
 # endif
 
@@ -115,4 +125,4 @@ namespace boost
 
 #endif  // BOOST_WINDOWS_API
 
-#endif  // BOOST_WINDOWS_ERROR_HPP
+#endif  // BOOST_SYSTEM_WINDOWS_ERROR_HPP

meta/libraries.json

@@ -0,0 +1,11 @@
+{
+    "key": "system",
+    "name": "System",
+    "authors": [
+        "Beman Dawes"
+    ],
+    "description": "Operating system support, including the diagnostics support that will be part of the C++0x standard library.",
+    "category": [
+        "System"
+    ]
+}

src/error_code.cpp

@@ -1,6 +1,7 @@
-//  error_code support implementation file  ----------------------------------//
+//  error_code stub implementation, for compatibility only
 
 //  Copyright Beman Dawes 2002, 2006
+//  Copyright Peter Dimov 2018
 
 //  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)
@@ -9,418 +10,22 @@
 
 //----------------------------------------------------------------------------//
 
-#include <boost/config/warning_disable.hpp>
-
 // define BOOST_SYSTEM_SOURCE so that <boost/system/config.hpp> knows
 // the library is being built (possibly exporting rather than importing code)
-#define BOOST_SYSTEM_SOURCE 
+#define BOOST_SYSTEM_SOURCE
 
 #include <boost/system/config.hpp>
-#include <boost/system/error_code.hpp>
-#include <boost/cerrno.hpp>
-#include <vector>
-#include <cstdlib>
-#include <cassert>
-
-using namespace boost::system;
-using namespace boost::system::errc;
-
-#include <cstring> // for strerror/strerror_r
-
-# if defined( BOOST_WINDOWS_API )
-#   include <windows.h>
-#   include "local_free_on_destruction.hpp"
-#   ifndef ERROR_INCORRECT_SIZE
-#     define ERROR_INCORRECT_SIZE ERROR_BAD_ARGUMENTS
-#   endif
-# endif
-
-//----------------------------------------------------------------------------//
-
-namespace
-{
-  //  standard error categories  ---------------------------------------------//
-
-  class generic_error_category : public error_category
-  {
-  public:
-    generic_error_category(){}
-    const char *   name() const;
-    std::string    message( int ev ) const;
-  };
-
-  class system_error_category : public error_category
-  {
-  public:
-    system_error_category(){}
-    const char *        name() const;
-    std::string         message( int ev ) const;
-    error_condition     default_error_condition( int ev ) const;
-  };
-
-  //  generic_error_category implementation  ---------------------------------//
-
-  const char * generic_error_category::name() const
-  {
-    return "generic";
-  }
-
-  std::string generic_error_category::message( int ev ) const
-  {
-    static std::string unknown_err( "Unknown error" );
-  // strerror_r is preferred because it is always thread safe,
-  // however, we fallback to strerror in certain cases because:
-  //   -- Windows doesn't provide strerror_r.
-  //   -- HP and Sundo provide strerror_r on newer systems, but there is
-  //      no way to tell if is available at runtime and in any case their
-  //      versions of strerror are thread safe anyhow.
-  //   -- Linux only sometimes provides strerror_r.
-  //   -- Tru64 provides strerror_r only when compiled -pthread.
-  //   -- VMS doesn't provide strerror_r, but on this platform, strerror is
-  //      thread safe.
-  # if defined(BOOST_WINDOWS_API) || defined(__hpux) || defined(__sun)\
-     || (defined(__linux) && (!defined(__USE_XOPEN2K) || defined(BOOST_SYSTEM_USE_STRERROR)))\
-     || (defined(__osf__) && !defined(_REENTRANT))\
-     || (defined(__vms))\
-     || (defined(__QNXNTO__))
-      const char * c_str = std::strerror( ev );
-      return  c_str
-        ? std::string( c_str )
-        : unknown_err;
-  # else  // use strerror_r
-      char buf[64];
-      char * bp = buf;
-      std::size_t sz = sizeof(buf);
-  #  if defined(__CYGWIN__) || defined(__USE_GNU)
-      // Oddball version of strerror_r
-      const char * c_str = strerror_r( ev, bp, sz );
-      return  c_str
-        ? std::string( c_str )
-        : unknown_err;
-  #  else
-      // POSIX version of strerror_r
-      int result;
-      for (;;)
-      {
-        // strerror_r returns 0 on success, otherwise ERANGE if buffer too small,
-        // invalid_argument if ev not a valid error number
-  #  if defined (__sgi)
-        const char * c_str = strerror( ev );
-        result = 0;
-      return  c_str
-        ? std::string( c_str )
-        : unknown_err;
-  #  else
-        result = strerror_r( ev, bp, sz );
-  #  endif
-        if (result == 0 )
-          break;
-        else
-        {
-  #  if defined(__linux)
-          // Linux strerror_r returns -1 on error, with error number in errno
-          result = errno;
-  #  endif
-          if ( result !=  ERANGE ) break;
-          if ( sz > sizeof(buf) ) std::free( bp );
-          sz *= 2;
-          if ( (bp = static_cast<char*>(std::malloc( sz ))) == 0 )
-            return std::string( "ENOMEM" );
-        }
-      }
-      std::string msg;
-      try
-      {
-        msg = ( ( result == invalid_argument ) ? "Unknown error" : bp );
-      }
-
-#   ifndef BOOST_NO_EXCEPTIONS
-      // See ticket #2098
-      catch(...)
-      {
-        // just eat the exception
-      }
-#   endif
-
-      if ( sz > sizeof(buf) ) std::free( bp );
-      sz = 0;
-      return msg;
-  #  endif   // else POSIX version of strerror_r
-  # endif  // else use strerror_r
-  }
-  //  system_error_category implementation  --------------------------------// 
-
-  const char * system_error_category::name() const
-  {
-    return "system";
-  }
-
-  error_condition system_error_category::default_error_condition( int ev ) const
-  {
-    switch ( ev )
-    {
-    case 0: return make_error_condition( success );
-# if defined(BOOST_POSIX_API)
-    // POSIX-like O/S -> posix_errno decode table  ---------------------------//
-    case E2BIG: return make_error_condition( argument_list_too_long );
-    case EACCES: return make_error_condition( permission_denied );
-    case EADDRINUSE: return make_error_condition( address_in_use );
-    case EADDRNOTAVAIL: return make_error_condition( address_not_available );
-    case EAFNOSUPPORT: return make_error_condition( address_family_not_supported );
-    case EAGAIN: return make_error_condition( resource_unavailable_try_again );
-#   if EALREADY != EBUSY  //  EALREADY and EBUSY are the same on QNX Neutrino
-    case EALREADY: return make_error_condition( connection_already_in_progress );
-#   endif
-    case EBADF: return make_error_condition( bad_file_descriptor );
-    case EBADMSG: return make_error_condition( bad_message );
-    case EBUSY: return make_error_condition( device_or_resource_busy );
-    case ECANCELED: return make_error_condition( operation_canceled );
-    case ECHILD: return make_error_condition( no_child_process );
-    case ECONNABORTED: return make_error_condition( connection_aborted );
-    case ECONNREFUSED: return make_error_condition( connection_refused );
-    case ECONNRESET: return make_error_condition( connection_reset );
-    case EDEADLK: return make_error_condition( resource_deadlock_would_occur );
-    case EDESTADDRREQ: return make_error_condition( destination_address_required );
-    case EDOM: return make_error_condition( argument_out_of_domain );
-    case EEXIST: return make_error_condition( file_exists );
-    case EFAULT: return make_error_condition( bad_address );
-    case EFBIG: return make_error_condition( file_too_large );
-    case EHOSTUNREACH: return make_error_condition( host_unreachable );
-    case EIDRM: return make_error_condition( identifier_removed );
-    case EILSEQ: return make_error_condition( illegal_byte_sequence );
-    case EINPROGRESS: return make_error_condition( operation_in_progress );
-    case EINTR: return make_error_condition( interrupted );
-    case EINVAL: return make_error_condition( invalid_argument );
-    case EIO: return make_error_condition( io_error );
-    case EISCONN: return make_error_condition( already_connected );
-    case EISDIR: return make_error_condition( is_a_directory );
-    case ELOOP: return make_error_condition( too_many_symbolic_link_levels );
-    case EMFILE: return make_error_condition( too_many_files_open );
-    case EMLINK: return make_error_condition( too_many_links );
-    case EMSGSIZE: return make_error_condition( message_size );
-    case ENAMETOOLONG: return make_error_condition( filename_too_long );
-    case ENETDOWN: return make_error_condition( network_down );
-    case ENETRESET: return make_error_condition( network_reset );
-    case ENETUNREACH: return make_error_condition( network_unreachable );
-    case ENFILE: return make_error_condition( too_many_files_open_in_system );
-    case ENOBUFS: return make_error_condition( no_buffer_space );
-    case ENODATA: return make_error_condition( no_message_available );
-    case ENODEV: return make_error_condition( no_such_device );
-    case ENOENT: return make_error_condition( no_such_file_or_directory );
-    case ENOEXEC: return make_error_condition( executable_format_error );
-    case ENOLCK: return make_error_condition( no_lock_available );
-    case ENOLINK: return make_error_condition( no_link );
-    case ENOMEM: return make_error_condition( not_enough_memory );
-    case ENOMSG: return make_error_condition( no_message );
-    case ENOPROTOOPT: return make_error_condition( no_protocol_option );
-    case ENOSPC: return make_error_condition( no_space_on_device );
-    case ENOSR: return make_error_condition( no_stream_resources );
-    case ENOSTR: return make_error_condition( not_a_stream );
-    case ENOSYS: return make_error_condition( function_not_supported );
-    case ENOTCONN: return make_error_condition( not_connected );
-    case ENOTDIR: return make_error_condition( not_a_directory );
-  # if ENOTEMPTY != EEXIST // AIX treats ENOTEMPTY and EEXIST as the same value
-    case ENOTEMPTY: return make_error_condition( directory_not_empty );
-  # endif // ENOTEMPTY != EEXIST
-  # if ENOTRECOVERABLE != ECONNRESET // the same on some Broadcom chips 
-    case ENOTRECOVERABLE: return make_error_condition( state_not_recoverable ); 
-  # endif // ENOTRECOVERABLE != ECONNRESET 
-    case ENOTSOCK: return make_error_condition( not_a_socket );
-    case ENOTSUP: return make_error_condition( not_supported );
-    case ENOTTY: return make_error_condition( inappropriate_io_control_operation );
-    case ENXIO: return make_error_condition( no_such_device_or_address );
-  # if EOPNOTSUPP != ENOTSUP
-    case EOPNOTSUPP: return make_error_condition( operation_not_supported );
-  # endif // EOPNOTSUPP != ENOTSUP
-    case EOVERFLOW: return make_error_condition( value_too_large );
-  # if EOWNERDEAD != ECONNABORTED // the same on some Broadcom chips 
-    case EOWNERDEAD: return make_error_condition( owner_dead ); 
-  # endif // EOWNERDEAD != ECONNABORTED 
-    case EPERM: return make_error_condition( operation_not_permitted );
-    case EPIPE: return make_error_condition( broken_pipe );
-    case EPROTO: return make_error_condition( protocol_error );
-    case EPROTONOSUPPORT: return make_error_condition( protocol_not_supported );
-    case EPROTOTYPE: return make_error_condition( wrong_protocol_type );
-    case ERANGE: return make_error_condition( result_out_of_range );
-    case EROFS: return make_error_condition( read_only_file_system );
-    case ESPIPE: return make_error_condition( invalid_seek );
-    case ESRCH: return make_error_condition( no_such_process );
-    case ETIME: return make_error_condition( stream_timeout );
-    case ETIMEDOUT: return make_error_condition( timed_out );
-    case ETXTBSY: return make_error_condition( text_file_busy );
-  # if EAGAIN != EWOULDBLOCK
-    case EWOULDBLOCK: return make_error_condition( operation_would_block );
-  # endif // EAGAIN != EWOULDBLOCK
-    case EXDEV: return make_error_condition( cross_device_link );
-  #else
-    // Windows system -> posix_errno decode table  ---------------------------//
-    // see WinError.h comments for descriptions of errors
-    case ERROR_ACCESS_DENIED: return make_error_condition( permission_denied );
-    case ERROR_ALREADY_EXISTS: return make_error_condition( file_exists );
-    case ERROR_BAD_UNIT: return make_error_condition( no_such_device );
-    case ERROR_BUFFER_OVERFLOW: return make_error_condition( filename_too_long );
-    case ERROR_BUSY: return make_error_condition( device_or_resource_busy );
-    case ERROR_BUSY_DRIVE: return make_error_condition( device_or_resource_busy );
-    case ERROR_CANNOT_MAKE: return make_error_condition( permission_denied );
-    case ERROR_CANTOPEN: return make_error_condition( io_error );
-    case ERROR_CANTREAD: return make_error_condition( io_error );
-    case ERROR_CANTWRITE: return make_error_condition( io_error );
-    case ERROR_CURRENT_DIRECTORY: return make_error_condition( permission_denied );
-    case ERROR_DEV_NOT_EXIST: return make_error_condition( no_such_device );
-    case ERROR_DEVICE_IN_USE: return make_error_condition( device_or_resource_busy );
-    case ERROR_DIR_NOT_EMPTY: return make_error_condition( directory_not_empty );
-    case ERROR_DIRECTORY: return make_error_condition( invalid_argument ); // WinError.h: "The directory name is invalid"
-    case ERROR_DISK_FULL: return make_error_condition( no_space_on_device );
-    case ERROR_FILE_EXISTS: return make_error_condition( file_exists );
-    case ERROR_FILE_NOT_FOUND: return make_error_condition( no_such_file_or_directory );
-    case ERROR_HANDLE_DISK_FULL: return make_error_condition( no_space_on_device );
-    case ERROR_INVALID_ACCESS: return make_error_condition( permission_denied );
-    case ERROR_INVALID_DRIVE: return make_error_condition( no_such_device );
-    case ERROR_INVALID_FUNCTION: return make_error_condition( function_not_supported );
-    case ERROR_INVALID_HANDLE: return make_error_condition( invalid_argument );
-    case ERROR_INVALID_NAME: return make_error_condition( invalid_argument );
-    case ERROR_LOCK_VIOLATION: return make_error_condition( no_lock_available );
-    case ERROR_LOCKED: return make_error_condition( no_lock_available );
-    case ERROR_NEGATIVE_SEEK: return make_error_condition( invalid_argument );
-    case ERROR_NOACCESS: return make_error_condition( permission_denied );
-    case ERROR_NOT_ENOUGH_MEMORY: return make_error_condition( not_enough_memory );
-    case ERROR_NOT_READY: return make_error_condition( resource_unavailable_try_again );
-    case ERROR_NOT_SAME_DEVICE: return make_error_condition( cross_device_link );
-    case ERROR_OPEN_FAILED: return make_error_condition( io_error );
-    case ERROR_OPEN_FILES: return make_error_condition( device_or_resource_busy );
-    case ERROR_OPERATION_ABORTED: return make_error_condition( operation_canceled );
-    case ERROR_OUTOFMEMORY: return make_error_condition( not_enough_memory );
-    case ERROR_PATH_NOT_FOUND: return make_error_condition( no_such_file_or_directory );
-    case ERROR_READ_FAULT: return make_error_condition( io_error );
-    case ERROR_RETRY: return make_error_condition( resource_unavailable_try_again );
-    case ERROR_SEEK: return make_error_condition( io_error );
-    case ERROR_SHARING_VIOLATION: return make_error_condition( permission_denied );
-    case ERROR_TOO_MANY_OPEN_FILES: return make_error_condition( too_many_files_open );
-    case ERROR_WRITE_FAULT: return make_error_condition( io_error );
-    case ERROR_WRITE_PROTECT: return make_error_condition( permission_denied );
-    case WSAEACCES: return make_error_condition( permission_denied );
-    case WSAEADDRINUSE: return make_error_condition( address_in_use );
-    case WSAEADDRNOTAVAIL: return make_error_condition( address_not_available );
-    case WSAEAFNOSUPPORT: return make_error_condition( address_family_not_supported );
-    case WSAEALREADY: return make_error_condition( connection_already_in_progress );
-    case WSAEBADF: return make_error_condition( bad_file_descriptor );
-    case WSAECONNABORTED: return make_error_condition( connection_aborted );
-    case WSAECONNREFUSED: return make_error_condition( connection_refused );
-    case WSAECONNRESET: return make_error_condition( connection_reset );
-    case WSAEDESTADDRREQ: return make_error_condition( destination_address_required );
-    case WSAEFAULT: return make_error_condition( bad_address );
-    case WSAEHOSTUNREACH: return make_error_condition( host_unreachable );
-    case WSAEINPROGRESS: return make_error_condition( operation_in_progress );
-    case WSAEINTR: return make_error_condition( interrupted );
-    case WSAEINVAL: return make_error_condition( invalid_argument );
-    case WSAEISCONN: return make_error_condition( already_connected );
-    case WSAEMFILE: return make_error_condition( too_many_files_open );
-    case WSAEMSGSIZE: return make_error_condition( message_size );
-    case WSAENAMETOOLONG: return make_error_condition( filename_too_long );
-    case WSAENETDOWN: return make_error_condition( network_down );
-    case WSAENETRESET: return make_error_condition( network_reset );
-    case WSAENETUNREACH: return make_error_condition( network_unreachable );
-    case WSAENOBUFS: return make_error_condition( no_buffer_space );
-    case WSAENOPROTOOPT: return make_error_condition( no_protocol_option );
-    case WSAENOTCONN: return make_error_condition( not_connected );
-    case WSAENOTSOCK: return make_error_condition( not_a_socket );
-    case WSAEOPNOTSUPP: return make_error_condition( operation_not_supported );
-    case WSAEPROTONOSUPPORT: return make_error_condition( protocol_not_supported );
-    case WSAEPROTOTYPE: return make_error_condition( wrong_protocol_type );
-    case WSAETIMEDOUT: return make_error_condition( timed_out );
-    case WSAEWOULDBLOCK: return make_error_condition( operation_would_block );
-  #endif
-    default: return error_condition( ev, system_category() );
-    }
-  }
-
-# if !defined( BOOST_WINDOWS_API )
-
-  std::string system_error_category::message( int ev ) const
-  {
-    return generic_category().message( ev );
-  }
-# else
-
-  std::string system_error_category::message( int ev ) const
-  {
-# ifndef BOOST_NO_ANSI_APIS  
-    LPVOID lpMsgBuf = 0;
-    DWORD retval = ::FormatMessageA( 
-        FORMAT_MESSAGE_ALLOCATE_BUFFER | 
-        FORMAT_MESSAGE_FROM_SYSTEM | 
-        FORMAT_MESSAGE_IGNORE_INSERTS,
-        NULL,
-        ev,
-        MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), // Default language
-        (LPSTR) &lpMsgBuf,
-        0,
-        NULL 
-    );
-    detail::local_free_on_destruction lfod(lpMsgBuf);
-    if (retval == 0)
-        return std::string("Unknown error");
-        
-    std::string str( static_cast<LPCSTR>(lpMsgBuf) );
-# else  // WinCE workaround
-    LPVOID lpMsgBuf = 0;
-    DWORD retval = ::FormatMessageW( 
-        FORMAT_MESSAGE_ALLOCATE_BUFFER | 
-        FORMAT_MESSAGE_FROM_SYSTEM | 
-        FORMAT_MESSAGE_IGNORE_INSERTS,
-        NULL,
-        ev,
-        MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), // Default language
-        (LPWSTR) &lpMsgBuf,
-        0,
-        NULL 
-    );
-    detail::local_free_on_destruction lfod(lpMsgBuf);
-    if (retval == 0)
-        return std::string("Unknown error");
-    
-    int num_chars = (wcslen( static_cast<LPCWSTR>(lpMsgBuf) ) + 1) * 2;
-    LPSTR narrow_buffer = (LPSTR)_alloca( num_chars );
-    if (::WideCharToMultiByte(CP_ACP, 0, static_cast<LPCWSTR>(lpMsgBuf), -1, narrow_buffer, num_chars, NULL, NULL) == 0)
-        return std::string("Unknown error");
-
-    std::string str( narrow_buffer );
-# endif
-    while ( str.size()
-      && (str[str.size()-1] == '\n' || str[str.size()-1] == '\r') )
-        str.erase( str.size()-1 );
-    if ( str.size() && str[str.size()-1] == '.' ) 
-      { str.erase( str.size()-1 ); }
-    return str;
-  }
-# endif
-
-} // unnamed namespace
 
 namespace boost
 {
-  namespace system
-  {
 
-# ifndef BOOST_SYSTEM_NO_DEPRECATED
-    BOOST_SYSTEM_DECL error_code throws; // "throw on error" special error_code;
-                                         //  note that it doesn't matter if this
-                                         //  isn't initialized before use since
-                                         //  the only use is to take its
-                                         //  address for comparison purposes
-# endif
+namespace system
+{
 
-    BOOST_SYSTEM_DECL const error_category & system_category()
-    {
-      static const system_error_category  system_category_const;
-      return system_category_const;
-    }
+BOOST_SYSTEM_DECL void dummy_exported_function()
+{
+}
 
-    BOOST_SYSTEM_DECL const error_category & generic_category()
-    {
-      static const generic_error_category generic_category_const;
-      return generic_category_const;
-    }
+} // namespace system
 
-  } // namespace system
 } // namespace boost

src/local_free_on_destruction.hpp

@@ -1,40 +0,0 @@
-//  local_free_on_exit.hpp  ------------------------------------------------------------//
-
-//  Copyright (c) 2003-2010 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//  Copyright (c) 2010 Beman Dawes
-
-//  Distributed under the Boost Software License, Version 1.0.
-//  See http://www.boost.org/LICENSE_1_0.txt
-
-//  This is derived from boost/asio/detail/local_free_on_block_exit.hpp to avoid
-//  a dependency on asio. Thanks to Chris Kohlhoff for pointing it out.
-
-#ifndef BOOST_SYSTEM_LOCAL_FREE_ON_EXIT_HPP
-#define BOOST_SYSTEM_LOCAL_FREE_ON_EXIT_HPP
-
-namespace boost {
-namespace system {
-namespace detail {
-
-class local_free_on_destruction
-{
-public:
-  explicit local_free_on_destruction(void* p)
-    : p_(p) {}
-
-  ~local_free_on_destruction()
-  {
-    ::LocalFree(p_);
-  }
-
-private:
-  void* p_;
-  local_free_on_destruction(const local_free_on_destruction&);  // = deleted
-  local_free_on_destruction& operator=(const local_free_on_destruction&);  // = deleted
-};
-
-} // namespace detail
-} // namespace system
-} // namespace boost
-
-#endif  // BOOST_SYSTEM_LOCAL_FREE_ON_EXIT_HPP

test/Jamfile.v2

@@ -1,53 +1,131 @@
 # Boost System Library test Jamfile
 
 # Copyright Beman Dawes 2003, 2006
+# Copyright 2017, 2018 Peter Dimov
 
 # Distributed under the Boost Software License, Version 1.0.
 # See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt
 
 # See library home page at http://www.boost.org/libs/system
 
+import testing ;
+import os ;
+
 project
     : requirements
       <library>/boost/system//boost_system
-      <toolset>msvc:<asynch-exceptions>on
     ;
-    
-   lib throw_test
-     : throw_test.cpp
-     : <link>shared:<define>BOOST_SYSTEM_DYN_LINK=1
-     ;
-   
 
-   test-suite "system"
-       : [ run error_code_test.cpp
-           : # command line
-           : # input files
-           : # requirements
-                   <link>static
-         ]
-         [ run error_code_test.cpp
-           :  :  : <link>shared : error_code_test_shared
-         ]
-         [ run error_code_user_test.cpp
-           :  :  : <link>static
-         ]
-         [ run error_code_user_test.cpp
-           :  :  : <link>shared : error_code_user_test_shared
-         ]
-         [ run system_error_test.cpp
-           :  :  : <link>static
-         ]
-         [ run system_error_test.cpp
-            :  :  : <link>shared : system_error_test_shared
-         ]
-         [ run dynamic_link_test.cpp throw_test
-           :  :  : <link>shared : throw_test_shared
-         ]
-         [ run initialization_test.cpp
-            :  :  : <link>shared : initialization_test_shared
-         ]
-         [ run header_only_test.cpp
-           :  :  : <link>static
-         ]
-         ;
+   lib throw_test : throw_test.cpp : <link>shared:<define>THROW_DYN_LINK=1 ;
+
+   lib single_instance_lib1 : single_instance_1.cpp : <link>shared:<define>SINGLE_INSTANCE_DYN_LINK ;
+   lib single_instance_lib2 : single_instance_2.cpp : <link>shared:<define>SINGLE_INSTANCE_DYN_LINK ;
+
+   rule cxx03 ( properties * )
+   {
+      local result ;
+
+      if <toolset>gcc in $(properties)
+      {
+         result = <cxxflags>-std=c++98 ; # 4.4 has no 03
+      }
+      else if <toolset>clang in $(properties)
+      {
+         result = <cxxflags>-std=c++03 ;
+      }
+      else
+      {
+         result = <build>no ;
+      }
+
+      return $(result) ;
+   }
+
+   rule cxx11 ( properties * )
+   {
+      local result ;
+
+      if <toolset>gcc in $(properties)
+      {
+         result = <cxxflags>-std=c++0x ; # 4.6 has no 11
+      }
+      else if <toolset>clang in $(properties)
+      {
+         result = <cxxflags>-std=c++11 ;
+      }
+      else
+      {
+         result = <build>no ;
+      }
+
+      return $(result) ;
+   }
+
+   rule system-run- ( sources + )
+   {
+      local result ;
+
+      result += [ run $(sources) : : : <link>static : $(sources[1]:B)_static ] ;
+      result += [ run $(sources) : : : <link>shared : $(sources[1]:B)_shared ] ;
+      result += [ run $(sources) : : : -<library>/boost/system//boost_system <define>BOOST_ERROR_CODE_HEADER_ONLY : $(sources[1]:B)_header ] ;
+
+      return $(result) ;
+   }
+
+if [ os.environ UBSAN ]
+{
+   rule system-run ( sources + )
+   {
+      # The 03/11 tests are ODR violations, no point running them under -fsanitize=undefined
+      return [ system-run- $(sources) ] ;
+   }
+}
+else
+{
+   rule system-run ( sources + )
+   {
+      local result = [ system-run- $(sources) ] ;
+
+      # Test a source file built with -std=c++03 linked with a System library built without -std=c++03
+      result += [ run $(sources) : : : <link>static <conditional>@cxx03 : $(sources[1]:B)_static_03 ] ;
+      result += [ run $(sources) : : : <link>shared <conditional>@cxx03 : $(sources[1]:B)_shared_03 ] ;
+
+      # Test a source file built with -std=c++11 linked with a System library built without -std=c++11
+      result += [ run $(sources) : : : <link>static <conditional>@cxx11 : $(sources[1]:B)_static_11 ] ;
+      result += [ run $(sources) : : : <link>shared <conditional>@cxx11 : $(sources[1]:B)_shared_11 ] ;
+
+      return $(result) ;
+   }
+}
+
+system-run error_code_test.cpp ;
+system-run error_code_user_test.cpp ;
+system-run system_error_test.cpp ;
+
+run dynamic_link_test.cpp throw_test :  :  : <link>shared : throw_test_shared ;
+
+system-run initialization_test.cpp ;
+
+run header_only_test.cpp : : : -<library>/boost/system//boost_system ;
+run header_only_test.cpp : : : -<library>/boost/system//boost_system <define>BOOST_NO_ANSI_APIS : header_only_test_no_ansi ;
+
+run config_test.cpp : : : <test-info>always_show_run_output ;
+
+system-run- std_interop_test.cpp ;
+system-run std_mismatch_test.cpp ;
+
+system-run single_instance_test.cpp single_instance_1.cpp single_instance_2.cpp ;
+run single_instance_test.cpp single_instance_lib1 single_instance_lib2 : : : <link>static : single_instance_lib_static ;
+run single_instance_test.cpp single_instance_lib1 single_instance_lib2 : : : <link>shared : single_instance_lib_shared ;
+
+system-run before_main_test.cpp ;
+run-fail throws_assign_fail.cpp ;
+system-run- constexpr_test.cpp ;
+system-run win32_hresult_test.cpp ;
+
+system-run error_category_test.cpp ;
+system-run generic_category_test.cpp ;
+system-run system_category_test.cpp ;
+
+# Quick (CI) test
+run quick.cpp ;

test/before_main_test.cpp

@@ -0,0 +1,30 @@
+
+// Copyright 2018 Peter Dimov.
+// Distributed under the Boost Software License, Version 1.0.
+
+#include <boost/system/error_code.hpp>
+#include <boost/core/lightweight_test.hpp>
+#include <cerrno>
+
+using namespace boost::system;
+
+static error_code e1( 1, system_category() );
+static std::string m1 = e1.message();
+
+static error_code e2( ENOENT, generic_category() );
+static std::string m2 = e2.message();
+
+int main()
+{
+    error_code e1_( 1, system_category() );
+
+    BOOST_TEST_EQ( e1, e1_ );
+    BOOST_TEST_EQ( m1, e1_.message() );
+
+    error_code e2_( ENOENT, generic_category() );
+
+    BOOST_TEST_EQ( e2, e2_ );
+    BOOST_TEST_EQ( m2, e2_.message() );
+
+    return boost::report_errors();
+}

test/config_test.cpp

@@ -0,0 +1,65 @@
+//  error_code_test.cpp  ---------------------------------------------------------------//
+
+//  Copyright Beman Dawes 2014
+
+//  Distributed under the Boost Software License, Version 1.0.
+//  See http://www.boost.org/LICENSE_1_0.txt
+
+//  See library home page at http://www.boost.org/libs/system
+
+#include <boost/system/config.hpp>
+#include <iostream>
+
+using std::cout;
+using std::endl;
+
+int main()
+{
+#ifdef BOOST_WINDOWS_API
+  std::cout << "BOOST_WINDOWS_API is defined" << std::endl;
+#else
+  std::cout << "BOOST_WINDOWS_API is not defined" << std::endl;
+#endif
+#ifdef _MSC_VER
+  std::cout << "_MSC_VER is defined as " <<  _MSC_VER << std::endl;
+#else
+  std::cout << "_MSC_VER is not defined" << std::endl;
+#endif
+#ifdef  __CYGWIN__
+  std::cout << "__CYGWIN__ is defined" << std::endl;
+#else
+  std::cout << "__CYGWIN__ is not defined" << std::endl;
+#endif
+#ifdef __MINGW32__
+  std::cout << "__MINGW32__ is defined" << std::endl;
+#else
+  std::cout << "__MINGW32__ is not defined" << std::endl;
+#endif
+#ifdef BOOST_POSIX_API
+  std::cout << "BOOST_POSIX_API is defined" << std::endl;
+#else
+  std::cout << "BOOST_POSIX_API is not defined" << std::endl;
+#endif
+#ifdef BOOST_PLAT_WINDOWS_DESKTOP
+  std::cout << "BOOST_PLAT_WINDOWS_DESKTOP is defined as "
+    << BOOST_PLAT_WINDOWS_DESKTOP << std::endl;
+#else
+  std::cout << "BOOST_PLAT_WINDOWS_DESKTOP is not defined" << std::endl;
+#endif
+#ifdef BOOST_NO_ANSI_APIS
+  std::cout << "BOOST_NO_ANSI_APIS is defined" << std::endl;
+#else
+  std::cout << "BOOST_NO_ANSI_APIS is not defined" << std::endl;
+#endif
+#ifdef BOOST_NO_CXX11_NOEXCEPT
+  std::cout << "BOOST_NO_CXX11_NOEXCEPT is defined" << std::endl;
+#else
+  std::cout << "BOOST_NO_CXX11_NOEXCEPT is not defined" << std::endl;
+#endif
+#ifdef BOOST_NO_CXX11_EXPLICIT_CONVERSION_OPERATORS
+  std::cout << "BOOST_NO_CXX11_EXPLICIT_CONVERSION_OPERATORS is defined" << std::endl;
+#else
+  std::cout << "BOOST_NO_CXX11_EXPLICIT_CONVERSION_OPERATORS is not defined" << std::endl;
+#endif
+  return 0;
+}

test/constexpr_test.cpp

@@ -0,0 +1,68 @@
+
+// Copyright 2018 Peter Dimov.
+// Distributed under the Boost Software License, Version 1.0.
+
+#include <boost/system/error_code.hpp>
+#include <boost/core/lightweight_test.hpp>
+#include <boost/config/pragma_message.hpp>
+#include <boost/static_assert.hpp>
+#include <boost/config.hpp>
+#include <boost/config/workaround.hpp>
+
+#if !defined(BOOST_SYSTEM_HAS_CONSTEXPR)
+
+BOOST_PRAGMA_MESSAGE("Skipping constexpr test, BOOST_SYSTEM_HAS_CONSTEXPR isn't defined")
+int main() {}
+
+#else
+
+using namespace boost::system;
+
+constexpr error_code e1( 1, system_category() );
+
+BOOST_STATIC_ASSERT( e1.value() == 1 );
+BOOST_STATIC_ASSERT( e1.category() == system_category() );
+BOOST_STATIC_ASSERT( e1 );
+BOOST_STATIC_ASSERT( e1 == e1 );
+
+constexpr error_code e2( 2, generic_category() );
+
+BOOST_STATIC_ASSERT( e2.value() == 2 );
+BOOST_STATIC_ASSERT( e2.category() == generic_category() );
+BOOST_STATIC_ASSERT( e2 );
+BOOST_STATIC_ASSERT( e2 == e2 );
+
+#if !BOOST_WORKAROUND(BOOST_GCC, < 80200)
+
+BOOST_STATIC_ASSERT( e1 != e2 );
+
+#endif
+
+constexpr error_code e3;
+
+BOOST_STATIC_ASSERT( e3.value() == 0 );
+BOOST_STATIC_ASSERT( e3.category() == system_category() );
+BOOST_STATIC_ASSERT( !e3 );
+BOOST_STATIC_ASSERT( e3 == e3 );
+
+#if !BOOST_WORKAROUND(BOOST_GCC, < 80200)
+
+BOOST_STATIC_ASSERT( e1 != e3 );
+
+#endif
+
+int main()
+{
+    error_code e1_( 1, system_category() );
+    BOOST_TEST_EQ( e1, e1_ );
+
+    error_code e2_( 2, generic_category() );
+    BOOST_TEST_EQ( e2, e2_ );
+
+    error_code e3_;
+    BOOST_TEST_EQ( e3, e3_ );
+
+    return boost::report_errors();
+}
+
+#endif

test/dynamic_link_test.cpp

@@ -19,22 +19,15 @@
 //--------------------------------------------------------------------------------------// 
 
 #include <boost/system/system_error.hpp>
-
 #include <iostream>
 
-namespace boost
-{
-  namespace system
-  {
-    BOOST_SYSTEM_DECL void throw_test();
-  }
-}
+void throw_test();
 
 int main()
 {
   try
   {
-    boost::system::throw_test();
+    throw_test();
   }
   catch (const boost::system::system_error& ex)
   {
@@ -42,7 +35,6 @@ int main()
     std::cout << "  what() reports " << ex.what() << '\n';
     return 0;
   }
-
   catch (const std::runtime_error& ex)
   {
     std::cout << "  error: caught std::runtime_error instead of boost::system::system_error\n";
@@ -52,4 +44,4 @@ int main()
 
   std::cout << "  error: failed to catch boost::system::system_error\n";
   return 1;
-}
+}

test/error_category_test.cpp

@@ -0,0 +1,82 @@
+
+// Copyright 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
+
+// See library home page at http://www.boost.org/libs/system
+
+// Avoid spurious VC++ warnings
+# define _CRT_SECURE_NO_WARNINGS
+
+#include <boost/system/error_code.hpp>
+#include <boost/core/lightweight_test.hpp>
+#include <cstdio>
+
+//
+
+namespace sys = boost::system;
+
+class user_category: public sys::error_category
+{
+public:
+
+    virtual const char * name() const BOOST_NOEXCEPT
+    {
+        return "user";
+    }
+
+    virtual std::string message( int ev ) const
+    {
+        char buffer[ 256 ];
+        std::sprintf( buffer, "user message %d", ev );
+
+        return buffer;
+    }
+
+    using sys::error_category::message;
+};
+
+static user_category s_cat_1;
+static user_category s_cat_2;
+
+int main()
+{
+    // default_error_condition
+
+    BOOST_TEST( s_cat_1.default_error_condition( 1 ) == sys::error_condition( 1, s_cat_1 ) );
+    BOOST_TEST( s_cat_2.default_error_condition( 2 ) == sys::error_condition( 2, s_cat_2 ) );
+
+    // equivalent
+
+    BOOST_TEST( s_cat_1.equivalent( 1, sys::error_condition( 1, s_cat_1 ) ) );
+    BOOST_TEST( !s_cat_1.equivalent( 1, sys::error_condition( 2, s_cat_1 ) ) );
+    BOOST_TEST( !s_cat_1.equivalent( 1, sys::error_condition( 2, s_cat_2 ) ) );
+
+    // the other equivalent
+
+    BOOST_TEST( s_cat_1.equivalent( sys::error_code( 1, s_cat_1 ), 1 ) );
+    BOOST_TEST( !s_cat_1.equivalent( sys::error_code( 1, s_cat_1 ), 2 ) );
+    BOOST_TEST( !s_cat_1.equivalent( sys::error_code( 1, s_cat_2 ), 1 ) );
+
+    // message
+
+    {
+        char buffer[ 256 ];
+        BOOST_TEST_CSTR_EQ( s_cat_1.message( 1, buffer, sizeof( buffer ) ), s_cat_1.message( 1 ).c_str() );
+    }
+
+    {
+        char buffer[ 4 ];
+        BOOST_TEST_CSTR_EQ( s_cat_1.message( 1, buffer, sizeof( buffer ) ), "use" );
+    }
+
+    // ==
+
+    BOOST_TEST_NOT( s_cat_1 == s_cat_2 );
+    BOOST_TEST( s_cat_1 != s_cat_2 );
+
+    return boost::report_errors();
+}

test/error_code_test.cpp

@@ -9,9 +9,6 @@
 
 //----------------------------------------------------------------------------//
 
-//  test without deprecated features
-#define BOOST_SYSTEM_NO_DEPRECATED
-
 #include <boost/config/warning_disable.hpp>
 
 #include <boost/detail/lightweight_test.hpp>
@@ -30,14 +27,20 @@
 //  with a boost::system using directive increases use scenario coverage.
 using namespace boost::system;
 
-# if defined( BOOST_WINDOWS_API )
-#   include "winerror.h"
-#   define BOOST_ACCESS_ERROR_MACRO ERROR_ACCESS_DENIED
-# elif defined( BOOST_POSIX_API )
-#   define BOOST_ACCESS_ERROR_MACRO EACCES
-# else
-#   error "Only supported for POSIX and Windows"
-# endif
+#if defined( BOOST_WINDOWS_API )
+// Neither MinGW or Cygwin versions of winerror.h work if used alone, so on
+// either of those platforms include the full windows.h
+#  if defined(__MINGW32__) || defined(__CYGWIN__)
+#    include <windows.h>
+#  else
+#    include <winerror.h>
+#  endif
+#  define BOOST_ACCESS_ERROR_MACRO ERROR_ACCESS_DENIED
+#elif defined( BOOST_POSIX_API )
+#  define BOOST_ACCESS_ERROR_MACRO EACCES
+#else
+#  error "Only supported for POSIX and Windows"
+#endif
 
 namespace
 {
@@ -50,6 +53,53 @@ namespace
     ss >> s;
     BOOST_TEST( s == expected );
   }
+
+  //  throws_function_test  ------------------------------------------------------------//
+
+  //  usage example
+
+  int divide(int dividend, int divisor, boost::system::error_code& ec = boost::throws())
+  {
+    if (divisor == 0)                            // is there an error?
+    {
+      if (&ec == &boost::throws())               // throw on error
+        throw "oops!";                           // whatever exception you prefer
+      ec = error_code(EDOM, generic_category()); // report error via error_code
+      return 0;
+    }
+    
+    if (&ec != &boost::throws())                 // error reporting via error_code
+      ec.clear();
+    return dividend / divisor;
+  }
+
+  //  test usage example
+
+  void test_throws_usage()
+  {
+    std::cout << "Test throws() example and usage...\n";
+    error_code ec;
+
+    // no error tests
+    BOOST_TEST_EQ((divide(10, 2)), 5);        // no error, report via exception
+    ec = make_error_code(errc::argument_out_of_domain);
+    BOOST_TEST_EQ((divide(10, 5, ec)), 2);    // no error, report via error_code
+    BOOST_TEST(!ec);
+
+    ec = make_error_code(errc::argument_out_of_domain);
+    BOOST_TEST_EQ((divide(10, 0, ec)), 0);    // error, report via error_code
+    BOOST_TEST(ec);
+
+    bool exception_thrown = false;            
+    try
+      { divide(10, 0); }                      // error, report via exception
+    catch (...)
+      { exception_thrown = true; }            
+    BOOST_TEST(exception_thrown);
+
+    //error_code should_fail(boost::throws());     // should fail at runtime
+    //boost::throws() = ec;                        // should fail at runtime
+  }
 }
 
 //  main  ------------------------------------------------------------------------------//
@@ -73,17 +123,7 @@ int main( int, char ** )
   BOOST_TEST( generic_category() != system_category() );
   BOOST_TEST( system_category() != generic_category() );
 
-  if ( std::less<const error_category*>()( &generic_category(), &system_category() ) )
-  {
-    BOOST_TEST( generic_category() < system_category() );
-    BOOST_TEST( !(system_category() < generic_category()) );
-  }
-  else
-  {
-    BOOST_TEST( system_category() < generic_category() );
-    BOOST_TEST( !(generic_category() < system_category()) );
-  }
-
+  BOOST_TEST_NE( generic_category() < system_category(), system_category() < generic_category() );
 
   error_code ec;
   error_condition econd;
@@ -196,6 +236,8 @@ int main( int, char ** )
   BOOST_TEST( econd.message() != "" );
   BOOST_TEST( econd.message().substr( 0, 13) != "Unknown error" );
 
+  test_throws_usage();
+
 #ifdef BOOST_WINDOWS_API
   std::cout << "Windows tests...\n";
   // these tests probe the Windows errc decoder

test/error_code_user_test.cpp

@@ -14,8 +14,6 @@
 
 //  Motivation was a Boost posting by Christopher Kohlhoff on June 28, 2006.
 
-#define BOOST_SYSTEM_NO_DEPRECATED
-
 #include <boost/system/error_code.hpp>
 #include <boost/cerrno.hpp>
 #include <string>
@@ -75,7 +73,7 @@ namespace boost
   namespace lib3
   {
     // lib3 has its own error_category:
-    const boost::system::error_category & get_lib3_error_category();
+    const boost::system::error_category & get_lib3_error_category() BOOST_SYSTEM_NOEXCEPT;
     const boost::system::error_category & lib3_error_category = get_lib3_error_category();
     
     enum error
@@ -112,12 +110,12 @@ namespace boost
     public:
       lib3_error_category_imp() : boost::system::error_category() { }
 
-      const char * name() const
+      const char * name() const BOOST_SYSTEM_NOEXCEPT
       {
         return "lib3";
       }
 
-      boost::system::error_condition default_error_condition( int ev ) const
+      boost::system::error_condition default_error_condition( int ev ) const BOOST_SYSTEM_NOEXCEPT
       {
         return ev == boo_boo
           ? boost::system::error_condition( boost::system::errc::io_error,
@@ -135,7 +133,7 @@ namespace boost
 
     };
 
-    const boost::system::error_category & get_lib3_error_category()
+    const boost::system::error_category & get_lib3_error_category() BOOST_SYSTEM_NOEXCEPT
     {
       static const lib3_error_category_imp l3ecat;
       return l3ecat;
@@ -156,7 +154,7 @@ namespace boost
 namespace lib4
 {
   // lib4 has its own error_category:
-  const boost::system::error_category & get_lib4_error_category();
+  const boost::system::error_category & get_lib4_error_category() BOOST_SYSTEM_NOEXCEPT;
   const boost::system::error_category & lib4_error_category = get_lib4_error_category();
   
   extern const boost::system::error_code boo_boo;
@@ -174,12 +172,12 @@ namespace lib4
   public:
     lib4_error_category_imp() : boost::system::error_category() { }
 
-    const char * name() const
+    const char * name() const BOOST_SYSTEM_NOEXCEPT
     {
       return "lib4";
     }
 
-    boost::system::error_condition default_error_condition( int ev ) const
+    boost::system::error_condition default_error_condition( int ev ) const  BOOST_SYSTEM_NOEXCEPT
     {
       return ev == boo_boo.value()
         ? boost::system::error_condition( boost::system::errc::io_error,
@@ -195,7 +193,7 @@ namespace lib4
     }
   };
 
-  const boost::system::error_category & get_lib4_error_category()
+  const boost::system::error_category & get_lib4_error_category() BOOST_SYSTEM_NOEXCEPT
   {
     static const lib4_error_category_imp l4ecat;
     return l4ecat;

test/generic_category_test.cpp

@@ -0,0 +1,41 @@
+
+// Copyright 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
+
+// See library home page at http://www.boost.org/libs/system
+
+// Avoid spurious VC++ warnings
+# define _CRT_SECURE_NO_WARNINGS
+
+#include <boost/system/error_code.hpp>
+#include <boost/core/lightweight_test.hpp>
+#include <cstring>
+
+//
+
+namespace sys = boost::system;
+
+int main()
+{
+    sys::error_category const & cat = sys::generic_category();
+
+    // message
+
+    for( int i = -2; i < 1024; ++i )
+    {
+        {
+            BOOST_TEST_CSTR_EQ( cat.message( i ).c_str(), std::strerror( i ) );
+        }
+
+        {
+            char buffer[ 256 ];
+            BOOST_TEST_CSTR_EQ( cat.message( i, buffer, sizeof( buffer ) ), std::strerror( i ) );
+        }
+    }
+
+    return boost::report_errors();
+}

test/header_only_test.cpp

@@ -1,4 +1,4 @@
-//  error_code_test.cpp  -----------------------------------------------------//
+//  header_only_test.cpp  -----------------------------------------------------//
 
 //  Copyright Beman Dawes 2007
 

test/initialization_test.cpp

@@ -10,19 +10,19 @@
 //  This test verifiies that the error_category vtable does not suffer from
 //  order-of-initialization problems.
 
-#include <boost/detail/lightweight_test.hpp>
 #include <boost/system/error_code.hpp>
+#include <boost/core/lightweight_test.hpp>
 
 struct foo
 {
   foo()
   {
     boost::system::error_code ec;
-    ec == boost::system::posix::permission_denied;
+    BOOST_TEST_NE( ec, boost::system::errc::permission_denied );
   }
 } f;
 
-int main( int, char ** )
+int main()
 {
-  return ::boost::report_errors();
+  return boost::report_errors();
 }

test/msvc/common.props

@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ImportGroup Label="PropertySheets" />
+  <PropertyGroup Label="UserMacros" />
+  <PropertyGroup />
+  <ItemDefinitionGroup>
+    <ClCompile>
+      <AdditionalIncludeDirectories>../../../../..</AdditionalIncludeDirectories>
+    </ClCompile>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup>
+    <ClCompile>
+      <WarningLevel>Level4</WarningLevel>
+      <PreprocessorDefinitions>BOOST_ALL_NO_LIB;BOOST_ALL_DYN_LINK;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ExceptionHandling>Async</ExceptionHandling>
+    </ClCompile>
+    <PostBuildEvent>
+      <Command>"$(TargetDir)\$(TargetName).exe"</Command>
+    </PostBuildEvent>
+  </ItemDefinitionGroup>
+  <ItemGroup />
+</Project>

test/msvc/config_test/config_test.vcxproj

@@ -0,0 +1,97 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Debug|Win32">
+      <Configuration>Debug</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|Win32">
+      <Configuration>Release</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <ProjectGuid>{E18C2B56-DCEC-438F-9C38-3C8B08B65247}</ProjectGuid>
+    <Keyword>Win32Proj</Keyword>
+    <RootNamespace>config_test</RootNamespace>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>true</UseDebugLibraries>
+    <PlatformToolset>v141</PlatformToolset>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>false</UseDebugLibraries>
+    <PlatformToolset>v141</PlatformToolset>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <ImportGroup Label="ExtensionSettings">
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+    <Import Project="..\common.props" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+    <Import Project="..\common.props" />
+  </ImportGroup>
+  <PropertyGroup Label="UserMacros" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <LinkIncremental>true</LinkIncremental>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <LinkIncremental>false</LinkIncremental>
+  </PropertyGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <ClCompile>
+      <PrecompiledHeader>
+      </PrecompiledHeader>
+      <WarningLevel>Level3</WarningLevel>
+      <Optimization>Disabled</Optimization>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <SDLCheck>true</SDLCheck>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <PrecompiledHeader>
+      </PrecompiledHeader>
+      <Optimization>MaxSpeed</Optimization>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <PreprocessorDefinitions>WIN32;NDEBUG;_CONSOLE;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <SDLCheck>true</SDLCheck>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ClCompile Include="..\..\config_test.cpp" />
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="..\..\..\include\boost\system\api_config.hpp" />
+    <ClInclude Include="..\..\..\include\boost\system\config.hpp" />
+    <ClInclude Include="..\..\..\include\boost\system\cygwin_error.hpp" />
+    <ClInclude Include="..\..\..\include\boost\system\error_code.hpp" />
+    <ClInclude Include="..\..\..\include\boost\system\linux_error.hpp" />
+    <ClInclude Include="..\..\..\include\boost\system\system_error.hpp" />
+    <ClInclude Include="..\..\..\include\boost\system\windows_error.hpp" />
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>

test/msvc/error_code_test/error_code_test.vcxproj

@@ -0,0 +1,91 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Debug|Win32">
+      <Configuration>Debug</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|Win32">
+      <Configuration>Release</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <ProjectGuid>{E50C14DC-547D-4C33-83EA-653C0D0D4E64}</ProjectGuid>
+    <Keyword>Win32Proj</Keyword>
+    <RootNamespace>error_code_test</RootNamespace>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>true</UseDebugLibraries>
+    <PlatformToolset>v141</PlatformToolset>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>false</UseDebugLibraries>
+    <PlatformToolset>v141</PlatformToolset>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <ImportGroup Label="ExtensionSettings">
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+    <Import Project="..\common.props" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+    <Import Project="..\common.props" />
+  </ImportGroup>
+  <PropertyGroup Label="UserMacros" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <LinkIncremental>true</LinkIncremental>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <LinkIncremental>false</LinkIncremental>
+  </PropertyGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <ClCompile>
+      <PrecompiledHeader>
+      </PrecompiledHeader>
+      <WarningLevel>Level3</WarningLevel>
+      <Optimization>Disabled</Optimization>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <PrecompiledHeader>
+      </PrecompiledHeader>
+      <Optimization>MaxSpeed</Optimization>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <PreprocessorDefinitions>WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\system-dll\system-dll.vcxproj">
+      <Project>{419402d4-f990-4b05-a459-655e2dc33dc2}</Project>
+    </ProjectReference>
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="..\..\error_code_test.cpp" />
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>

test/msvc/header_only_error_code_test/header_only_error_code_test.vcxproj

@@ -0,0 +1,151 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Debug|Win32">
+      <Configuration>Debug</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|Win32">
+      <Configuration>Release</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|x64">
+      <Configuration>Debug</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <VCProjectVersion>15.0</VCProjectVersion>
+    <ProjectGuid>{C25D7BD7-1B99-4DA9-A1A5-3034410CBEF7}</ProjectGuid>
+    <Keyword>Win32Proj</Keyword>
+    <RootNamespace>header_only_error_code_test</RootNamespace>
+    <WindowsTargetPlatformVersion>10.0.14393.0</WindowsTargetPlatformVersion>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>true</UseDebugLibraries>
+    <PlatformToolset>v141</PlatformToolset>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>false</UseDebugLibraries>
+    <PlatformToolset>v141</PlatformToolset>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>true</UseDebugLibraries>
+    <PlatformToolset>v141</PlatformToolset>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>false</UseDebugLibraries>
+    <PlatformToolset>v141</PlatformToolset>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <ImportGroup Label="ExtensionSettings">
+  </ImportGroup>
+  <ImportGroup Label="Shared">
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+    <Import Project="..\common.props" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+    <Import Project="..\common.props" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+    <Import Project="..\common.props" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+    <Import Project="..\common.props" />
+  </ImportGroup>
+  <PropertyGroup Label="UserMacros" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <LinkIncremental>true</LinkIncremental>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <LinkIncremental>true</LinkIncremental>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <LinkIncremental>false</LinkIncremental>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <LinkIncremental>false</LinkIncremental>
+  </PropertyGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <ClCompile>
+      <PrecompiledHeader>
+      </PrecompiledHeader>
+      <WarningLevel>Level3</WarningLevel>
+      <Optimization>Disabled</Optimization>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions);BOOST_ERROR_CODE_HEADER_ONLY</PreprocessorDefinitions>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <ClCompile>
+      <PrecompiledHeader>
+      </PrecompiledHeader>
+      <WarningLevel>Level3</WarningLevel>
+      <Optimization>Disabled</Optimization>
+      <PreprocessorDefinitions>_DEBUG;_CONSOLE;%(PreprocessorDefinitions);BOOST_ERROR_CODE_HEADER_ONLY</PreprocessorDefinitions>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <PrecompiledHeader>
+      </PrecompiledHeader>
+      <Optimization>MaxSpeed</Optimization>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <PreprocessorDefinitions>WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions);BOOST_ERROR_CODE_HEADER_ONLY</PreprocessorDefinitions>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <PrecompiledHeader>
+      </PrecompiledHeader>
+      <Optimization>MaxSpeed</Optimization>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <PreprocessorDefinitions>NDEBUG;_CONSOLE;%(PreprocessorDefinitions);BOOST_ERROR_CODE_HEADER_ONLY</PreprocessorDefinitions>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ClCompile Include="..\..\error_code_test.cpp" />
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>

test/msvc/header_only_test/header_only_test.vcxproj

@@ -0,0 +1,86 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Debug|Win32">
+      <Configuration>Debug</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|Win32">
+      <Configuration>Release</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <ProjectGuid>{3773451B-A618-4A26-A7F2-85554F4BD21B}</ProjectGuid>
+    <Keyword>Win32Proj</Keyword>
+    <RootNamespace>header_only_test</RootNamespace>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>true</UseDebugLibraries>
+    <PlatformToolset>v141</PlatformToolset>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>false</UseDebugLibraries>
+    <PlatformToolset>v141</PlatformToolset>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <ImportGroup Label="ExtensionSettings">
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+    <Import Project="..\common.props" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+    <Import Project="..\common.props" />
+  </ImportGroup>
+  <PropertyGroup Label="UserMacros" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <LinkIncremental>true</LinkIncremental>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <LinkIncremental>false</LinkIncremental>
+  </PropertyGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <ClCompile>
+      <PrecompiledHeader>
+      </PrecompiledHeader>
+      <WarningLevel>Level3</WarningLevel>
+      <Optimization>Disabled</Optimization>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <PrecompiledHeader>
+      </PrecompiledHeader>
+      <Optimization>MaxSpeed</Optimization>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <PreprocessorDefinitions>WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ClCompile Include="..\..\header_only_test.cpp" />
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>

test/msvc/std_interop_test/std_interop_test.vcxproj

@@ -0,0 +1,156 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Debug|Win32">
+      <Configuration>Debug</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|Win32">
+      <Configuration>Release</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|x64">
+      <Configuration>Debug</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <VCProjectVersion>15.0</VCProjectVersion>
+    <ProjectGuid>{47B0A041-1EB5-4842-BD17-BA0DCC5E0313}</ProjectGuid>
+    <Keyword>Win32Proj</Keyword>
+    <RootNamespace>std_interop_test</RootNamespace>
+    <WindowsTargetPlatformVersion>10.0.14393.0</WindowsTargetPlatformVersion>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>true</UseDebugLibraries>
+    <PlatformToolset>v141</PlatformToolset>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>false</UseDebugLibraries>
+    <PlatformToolset>v141</PlatformToolset>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>true</UseDebugLibraries>
+    <PlatformToolset>v141</PlatformToolset>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>false</UseDebugLibraries>
+    <PlatformToolset>v141</PlatformToolset>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <ImportGroup Label="ExtensionSettings">
+  </ImportGroup>
+  <ImportGroup Label="Shared">
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+    <Import Project="..\common.props" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+    <Import Project="..\common.props" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+    <Import Project="..\common.props" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+    <Import Project="..\common.props" />
+  </ImportGroup>
+  <PropertyGroup Label="UserMacros" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <LinkIncremental>true</LinkIncremental>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <LinkIncremental>true</LinkIncremental>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <LinkIncremental>false</LinkIncremental>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <LinkIncremental>false</LinkIncremental>
+  </PropertyGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <ClCompile>
+      <PrecompiledHeader>
+      </PrecompiledHeader>
+      <WarningLevel>Level3</WarningLevel>
+      <Optimization>Disabled</Optimization>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <ClCompile>
+      <PrecompiledHeader>
+      </PrecompiledHeader>
+      <WarningLevel>Level3</WarningLevel>
+      <Optimization>Disabled</Optimization>
+      <PreprocessorDefinitions>_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <PrecompiledHeader>
+      </PrecompiledHeader>
+      <Optimization>MaxSpeed</Optimization>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <PreprocessorDefinitions>WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <PrecompiledHeader>
+      </PrecompiledHeader>
+      <Optimization>MaxSpeed</Optimization>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <PreprocessorDefinitions>NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ClCompile Include="..\..\std_interop_test.cpp" />
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\system-dll\system-dll.vcxproj">
+      <Project>{419402d4-f990-4b05-a459-655e2dc33dc2}</Project>
+    </ProjectReference>
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>

test/msvc/system-dll/system-dll.vcxproj

@@ -0,0 +1,90 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Debug|Win32">
+      <Configuration>Debug</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|Win32">
+      <Configuration>Release</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <ProjectGuid>{419402D4-F990-4B05-A459-655E2DC33DC2}</ProjectGuid>
+    <Keyword>Win32Proj</Keyword>
+    <RootNamespace>systemdll</RootNamespace>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
+    <ConfigurationType>DynamicLibrary</ConfigurationType>
+    <UseDebugLibraries>true</UseDebugLibraries>
+    <PlatformToolset>v141</PlatformToolset>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
+    <ConfigurationType>DynamicLibrary</ConfigurationType>
+    <UseDebugLibraries>false</UseDebugLibraries>
+    <PlatformToolset>v141</PlatformToolset>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <ImportGroup Label="ExtensionSettings">
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+    <Import Project="..\common.props" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+    <Import Project="..\common.props" />
+  </ImportGroup>
+  <PropertyGroup Label="UserMacros" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <LinkIncremental>true</LinkIncremental>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <LinkIncremental>false</LinkIncremental>
+  </PropertyGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <ClCompile>
+      <PrecompiledHeader>
+      </PrecompiledHeader>
+      <WarningLevel>Level3</WarningLevel>
+      <Optimization>Disabled</Optimization>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_WINDOWS;_USRDLL;SYSTEMDLL_EXPORTS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <LanguageStandard>stdcpplatest</LanguageStandard>
+    </ClCompile>
+    <Link>
+      <SubSystem>Windows</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+    <PostBuildEvent>
+      <Command />
+    </PostBuildEvent>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <PrecompiledHeader>
+      </PrecompiledHeader>
+      <Optimization>MaxSpeed</Optimization>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <PreprocessorDefinitions>WIN32;NDEBUG;_WINDOWS;_USRDLL;SYSTEMDLL_EXPORTS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+    </ClCompile>
+    <Link>
+      <SubSystem>Windows</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ClCompile Include="..\..\..\src\error_code.cpp" />
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>

test/msvc/system.sln

@@ -0,0 +1,83 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio 15
+VisualStudioVersion = 15.0.26430.6
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "system-dll", "system-dll\system-dll.vcxproj", "{419402D4-F990-4B05-A459-655E2DC33DC2}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "error_code_test", "error_code_test\error_code_test.vcxproj", "{E50C14DC-547D-4C33-83EA-653C0D0D4E64}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "header_only_test", "header_only_test\header_only_test.vcxproj", "{3773451B-A618-4A26-A7F2-85554F4BD21B}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "config_test", "config_test\config_test.vcxproj", "{E18C2B56-DCEC-438F-9C38-3C8B08B65247}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "clang-system-dll", "clang-system-dll\clang-system-dll.vcxproj", "{30993F97-5E77-4B5A-B25F-B545C276077A}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "std_interop_test", "std_interop_test\std_interop_test.vcxproj", "{47B0A041-1EB5-4842-BD17-BA0DCC5E0313}"
+	ProjectSection(ProjectDependencies) = postProject
+		{419402D4-F990-4B05-A459-655E2DC33DC2} = {419402D4-F990-4B05-A459-655E2DC33DC2}
+	EndProjectSection
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "header_only_error_code_test", "header_only_error_code_test\header_only_error_code_test.vcxproj", "{C25D7BD7-1B99-4DA9-A1A5-3034410CBEF7}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Win32 = Debug|Win32
+		Debug|x64 = Debug|x64
+		Release|Win32 = Release|Win32
+		Release|x64 = Release|x64
+	EndGlobalSection
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+		HideSolutionNode = FALSE
+	EndGlobalSection
+EndGlobal

test/quick.cpp

@@ -0,0 +1,36 @@
+
+// Copyright 2017 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 library home page at http://www.boost.org/libs/system
+
+#include <boost/system/error_code.hpp>
+#include <boost/core/lightweight_test.hpp>
+#include <cerrno>
+
+int main()
+{
+    boost::system::error_category const & bt = boost::system::generic_category();
+
+    int ev = ENOENT;
+
+    boost::system::error_code bc( ev, bt );
+
+    BOOST_TEST_EQ( bc.value(), ev );
+    BOOST_TEST_EQ( &bc.category(), &bt );
+
+    boost::system::error_condition bn = bt.default_error_condition( ev );
+
+    BOOST_TEST_EQ( bn.value(), ev );
+    BOOST_TEST_EQ( &bn.category(), &bt );
+
+    BOOST_TEST( bt.equivalent( ev, bn ) );
+
+    BOOST_TEST( bc == bn );
+
+    return boost::report_errors();
+}

test/single_instance_1.cpp

@@ -0,0 +1,29 @@
+
+// Copyright 2018 Peter Dimov.
+// Distributed under the Boost Software License, Version 1.0.
+
+#include <boost/config.hpp>
+
+#if defined(SINGLE_INSTANCE_DYN_LINK)
+# define EXPORT BOOST_SYMBOL_EXPORT
+#else
+# define EXPORT
+#endif
+
+#include <boost/system/error_code.hpp>
+using namespace boost::system;
+
+namespace lib1
+{
+
+EXPORT error_code get_system_code()
+{
+    return error_code( 0, system_category() );
+}
+
+EXPORT error_code get_generic_code()
+{
+    return error_code( 0, generic_category() );
+}
+
+} // namespace lib1

test/single_instance_2.cpp

@@ -0,0 +1,29 @@
+
+// Copyright 2018 Peter Dimov.
+// Distributed under the Boost Software License, Version 1.0.
+
+#include <boost/config.hpp>
+
+#if defined(SINGLE_INSTANCE_DYN_LINK)
+# define EXPORT BOOST_SYMBOL_EXPORT
+#else
+# define EXPORT
+#endif
+
+#include <boost/system/error_code.hpp>
+using namespace boost::system;
+
+namespace lib2
+{
+
+EXPORT error_code get_system_code()
+{
+    return error_code( 0, system_category() );
+}
+
+EXPORT error_code get_generic_code()
+{
+    return error_code( 0, generic_category() );
+}
+
+} // namespace lib2

test/single_instance_test.cpp

@@ -0,0 +1,47 @@
+
+// Copyright 2018 Peter Dimov.
+// Distributed under the Boost Software License, Version 1.0.
+
+#include <boost/system/error_code.hpp>
+#include <boost/core/lightweight_test.hpp>
+
+using namespace boost::system;
+
+namespace lib1
+{
+
+error_code get_system_code();
+error_code get_generic_code();
+
+} // namespace lib1
+
+namespace lib2
+{
+
+error_code get_system_code();
+error_code get_generic_code();
+
+} // namespace lib2
+
+int main()
+{
+    {
+        error_code e1 = lib1::get_system_code();
+        error_code e2 = lib2::get_system_code();
+
+        BOOST_TEST_EQ( e1, e2 );
+
+        BOOST_TEST_EQ( hash_value( e1 ), hash_value( e2 ) );
+    }
+
+    {
+        error_code e1 = lib1::get_generic_code();
+        error_code e2 = lib2::get_generic_code();
+
+        BOOST_TEST_EQ( e1, e2 );
+
+        BOOST_TEST_EQ( hash_value( e1 ), hash_value( e2 ) );
+    }
+
+    return boost::report_errors();
+}

test/std_interop_test.cpp

@@ -0,0 +1,373 @@
+
+// Copyright 2017 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 library home page at http://www.boost.org/libs/system
+
+// Avoid spurious VC++ warnings
+# define _CRT_SECURE_NO_WARNINGS
+
+#include <boost/system/error_code.hpp>
+#include <boost/config.hpp>
+#include <boost/config/pragma_message.hpp>
+#include <iostream>
+
+#if !defined(BOOST_SYSTEM_HAS_SYSTEM_ERROR)
+
+BOOST_PRAGMA_MESSAGE( "BOOST_SYSTEM_HAS_SYSTEM_ERROR not defined, test will be skipped" )
+
+int main()
+{
+  std::cout
+    << "The version of the C++ standard library being used does not"
+    " support header <system_error> so interoperation will not be tested.\n";
+}
+
+#else
+
+#include <boost/core/lightweight_test.hpp>
+#include <system_error>
+#include <cerrno>
+#include <string>
+#include <cstdio>
+
+static void test_generic_category()
+{
+    boost::system::error_category const & bt = boost::system::generic_category();
+    std::error_category const & st = bt;
+
+    BOOST_TEST_CSTR_EQ( bt.name(), st.name() );
+
+    int ev = ENOENT;
+
+    BOOST_TEST_EQ( bt.message( ev ), st.message( ev ) );
+
+    {
+        boost::system::error_code bc( ev, bt );
+
+        BOOST_TEST_EQ( bc.value(), ev );
+        BOOST_TEST_EQ( &bc.category(), &bt );
+
+        std::error_code sc( bc );
+
+        BOOST_TEST_EQ( sc.value(), ev );
+        BOOST_TEST_EQ( &sc.category(), &st );
+    }
+
+    {
+        boost::system::error_condition bn = bt.default_error_condition( ev );
+
+        BOOST_TEST_EQ( bn.value(), ev );
+        BOOST_TEST_EQ( &bn.category(), &bt );
+
+        BOOST_TEST( bt.equivalent( ev, bn ) );
+
+        std::error_condition sn( bn );
+
+        BOOST_TEST_EQ( sn.value(), ev );
+        BOOST_TEST_EQ( &sn.category(), &st );
+
+        BOOST_TEST( st.equivalent( ev, sn ) );
+    }
+}
+
+static void test_system_category()
+{
+    boost::system::error_category const & bt = boost::system::system_category();
+    std::error_category const & st = bt;
+
+    BOOST_TEST_CSTR_EQ( bt.name(), st.name() );
+
+    {
+        int ev = 5;
+        BOOST_TEST_EQ( bt.message( ev ), st.message( ev ) );
+
+        {
+            boost::system::error_code bc( ev, bt );
+
+            BOOST_TEST_EQ( bc.value(), ev );
+            BOOST_TEST_EQ( &bc.category(), &bt );
+
+            std::error_code sc( bc );
+
+            BOOST_TEST_EQ( sc.value(), ev );
+            BOOST_TEST_EQ( &sc.category(), &st );
+        }
+
+        {
+            boost::system::error_condition bn = bt.default_error_condition( ev );
+            BOOST_TEST( bt.equivalent( ev, bn ) );
+
+            std::error_condition sn( bn );
+            BOOST_TEST( st.equivalent( ev, sn ) );
+        }
+    }
+
+    {
+        int ev = 4;
+        BOOST_TEST_EQ( bt.message( ev ), st.message( ev ) );
+
+        {
+            boost::system::error_code bc( ev, bt );
+
+            BOOST_TEST_EQ( bc.value(), ev );
+            BOOST_TEST_EQ( &bc.category(), &bt );
+
+            std::error_code sc( bc );
+
+            BOOST_TEST_EQ( sc.value(), ev );
+            BOOST_TEST_EQ( &sc.category(), &st );
+        }
+
+        {
+            boost::system::error_condition bn = bt.default_error_condition( ev );
+            BOOST_TEST( bt.equivalent( ev, bn ) );
+
+            std::error_condition sn( bn );
+            BOOST_TEST( st.equivalent( ev, sn ) );
+        }
+    }
+}
+
+// test_user_category
+
+class user_category_impl: public boost::system::error_category
+{
+public:
+
+    virtual const char * name() const BOOST_NOEXCEPT
+    {
+        return "user";
+    }
+
+    virtual std::string message( int ev ) const
+    {
+        char buffer[ 256 ];
+        std::sprintf( buffer, "user message %d", ev );
+
+        return buffer;
+    }
+
+    virtual boost::system::error_condition default_error_condition( int ev ) const BOOST_NOEXCEPT
+    {
+        if( ev == 4 )
+        {
+            return boost::system::error_condition( EMFILE, boost::system::generic_category() );
+        }
+        else if( ev == 5 )
+        {
+            return boost::system::error_condition( EACCES, boost::system::generic_category() );
+        }
+        else
+        {
+            return boost::system::error_condition( ev, *this );
+        }
+    }
+
+    virtual bool equivalent( int code, const boost::system::error_condition & condition ) const BOOST_NOEXCEPT
+    {
+        if( code == 4 && condition == make_error_condition( boost::system::errc::too_many_files_open_in_system ) )
+        {
+            return true;
+        }
+
+        if( code == 4 && condition == make_error_condition( boost::system::errc::too_many_files_open ) )
+        {
+            return true;
+        }
+
+        return default_error_condition( code ) == condition;
+    }
+
+    // virtual bool equivalent( const error_code & code, int condition ) const BOOST_NOEXCEPT;
+};
+
+boost::system::error_category const & user_category()
+{
+    static user_category_impl cat_;
+    return cat_;
+}
+
+static void test_user_category()
+{
+    boost::system::error_category const & bt = user_category();
+    std::error_category const & st = bt;
+
+    BOOST_TEST_CSTR_EQ( bt.name(), st.name() );
+
+    {
+        int ev = 5;
+        BOOST_TEST_EQ( bt.message( ev ), st.message( ev ) );
+
+        {
+            boost::system::error_code bc( ev, bt );
+
+            BOOST_TEST_EQ( bc.value(), ev );
+            BOOST_TEST_EQ( &bc.category(), &bt );
+
+            std::error_code sc( bc );
+
+            BOOST_TEST_EQ( sc.value(), ev );
+            BOOST_TEST_EQ( &sc.category(), &st );
+        }
+
+        {
+            boost::system::error_condition bn = bt.default_error_condition( ev );
+            BOOST_TEST( bt.equivalent( ev, bn ) );
+
+            std::error_condition sn( bn );
+            BOOST_TEST( st.equivalent( ev, sn ) );
+        }
+    }
+
+    {
+        int ev = 4;
+        BOOST_TEST_EQ( bt.message( ev ), st.message( ev ) );
+
+        {
+            boost::system::error_code bc( ev, bt );
+
+            BOOST_TEST_EQ( bc.value(), ev );
+            BOOST_TEST_EQ( &bc.category(), &bt );
+
+            std::error_code sc( bc );
+
+            BOOST_TEST_EQ( sc.value(), ev );
+            BOOST_TEST_EQ( &sc.category(), &st );
+        }
+
+        {
+            boost::system::error_condition bn = bt.default_error_condition( ev );
+            BOOST_TEST( bt.equivalent( ev, bn ) );
+
+            std::error_condition sn( bn );
+            BOOST_TEST( st.equivalent( ev, sn ) );
+        }
+
+        {
+            boost::system::error_condition bn = make_error_condition( boost::system::errc::too_many_files_open_in_system );
+            BOOST_TEST( bt.equivalent( ev, bn ) );
+
+            std::error_condition sn( bn );
+            BOOST_TEST( st.equivalent( ev, sn ) );
+        }
+
+        {
+            boost::system::error_condition bn = make_error_condition( boost::system::errc::too_many_files_open );
+            BOOST_TEST( bt.equivalent( ev, bn ) );
+
+            std::error_condition sn( bn );
+            BOOST_TEST( st.equivalent( ev, sn ) );
+        }
+    }
+}
+
+// test_user2_category
+
+enum user2_errc
+{
+    my_enoent = 1,
+    my_einval,
+    my_other
+};
+
+class user2_category_impl: public boost::system::error_category
+{
+public:
+
+    virtual const char * name() const BOOST_NOEXCEPT
+    {
+        return "user2";
+    }
+
+    virtual std::string message( int ev ) const
+    {
+        char buffer[ 256 ];
+        std::sprintf( buffer, "user2 message %d", ev );
+
+        return buffer;
+    }
+
+    virtual boost::system::error_condition default_error_condition( int ev ) const BOOST_NOEXCEPT
+    {
+        return boost::system::error_condition( ev, *this );
+    }
+
+    virtual bool equivalent( int code, const boost::system::error_condition & condition ) const BOOST_NOEXCEPT
+    {
+        return default_error_condition( code ) == condition;
+    }
+
+    virtual bool equivalent( const boost::system::error_code & code, int condition ) const BOOST_NOEXCEPT
+    {
+        if( code.category() == *this )
+        {
+            return condition == code.value();
+        }
+        else if( condition == my_enoent )
+        {
+            return code == boost::system::errc::no_such_file_or_directory;
+        }
+        else if( condition == my_einval )
+        {
+            return code == boost::system::errc::invalid_argument;
+        }
+        else
+        {
+            return false;
+        }
+    }
+};
+
+boost::system::error_category const & user2_category()
+{
+    static user2_category_impl cat_;
+    return cat_;
+}
+
+static void test_user2_category()
+{
+    boost::system::error_category const & bt = user2_category();
+    std::error_category const & st = bt;
+
+    int ev = my_enoent;
+
+    boost::system::error_condition bn( ev, bt );
+
+    BOOST_TEST_EQ( bn.value(), ev );
+    BOOST_TEST_EQ( &bn.category(), &bt );
+
+    boost::system::error_code bc = make_error_code( boost::system::errc::no_such_file_or_directory );
+
+    BOOST_TEST( bc == bn );
+
+    std::error_condition sn( bn );
+
+    BOOST_TEST_EQ( sn.value(), ev );
+    BOOST_TEST_EQ( &sn.category(), &st );
+
+    std::error_code sc( bc );
+
+    BOOST_TEST( sc == sn );
+}
+
+//
+
+int main()
+{
+    std::cout
+      << "The version of the C++ standard library being used"
+      " supports header <system_error> so interoperation will be tested.\n";
+    test_generic_category();
+    test_system_category();
+    test_user_category();
+    test_user2_category();
+
+    return boost::report_errors();
+}
+
+#endif

test/std_mismatch_test.cpp

@@ -0,0 +1,66 @@
+
+// Copyright 2017 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 library home page at http://www.boost.org/libs/system
+
+// Avoid spurious VC++ warnings
+# define _CRT_SECURE_NO_WARNINGS
+
+#include <boost/system/error_code.hpp>
+#include <boost/config.hpp>
+#include <boost/config/pragma_message.hpp>
+#include <iostream>
+
+#if !defined(BOOST_SYSTEM_HAS_SYSTEM_ERROR)
+
+BOOST_PRAGMA_MESSAGE( "BOOST_SYSTEM_HAS_SYSTEM_ERROR not defined, test will be skipped" )
+
+int main()
+{
+  std::cout
+    << "The version of the C++ standard library being used does not"
+    " support header <system_error> so interoperation will not be tested.\n";
+}
+
+#else
+
+#include <boost/core/lightweight_test.hpp>
+#include <system_error>
+#include <cerrno>
+#include <string>
+#include <cstdio>
+
+static void test_generic_category()
+{
+    boost::system::error_category const & bt = boost::system::generic_category();
+    std::error_category const & st = bt;
+
+    BOOST_TEST_CSTR_EQ( bt.name(), st.name() );
+}
+
+static void test_system_category()
+{
+    boost::system::error_category const & bt = boost::system::system_category();
+    std::error_category const & st = bt;
+
+    BOOST_TEST_CSTR_EQ( bt.name(), st.name() );
+}
+
+int main()
+{
+    std::cout
+      << "The version of the C++ standard library being used"
+      " supports header <system_error> so interoperation will be tested.\n";
+
+    test_generic_category();
+    test_system_category();
+
+    return boost::report_errors();
+}
+
+#endif

test/system_category_test.cpp

@@ -0,0 +1,116 @@
+
+// Copyright 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
+
+// See library home page at http://www.boost.org/libs/system
+
+// Avoid spurious VC++ warnings
+# define _CRT_SECURE_NO_WARNINGS
+
+#include <boost/system/error_code.hpp>
+#include <boost/core/lightweight_test.hpp>
+#include <cstring>
+#include <cstdio>
+
+//
+
+#if defined(BOOST_WINDOWS_API)
+
+#include <windows.h>
+
+std::string sys_strerror( int ev )
+{
+    void * lpMsgBuf = 0;
+
+    DWORD retval = FormatMessageA(
+        FORMAT_MESSAGE_ALLOCATE_BUFFER |
+        FORMAT_MESSAGE_FROM_SYSTEM |
+        FORMAT_MESSAGE_IGNORE_INSERTS,
+        NULL,
+        ev,
+        MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
+        (LPSTR) &lpMsgBuf,
+        0,
+        NULL
+    );
+
+    struct local_free
+    {
+        void * p_;
+
+        ~local_free()
+        {
+            LocalFree( p_ );
+        }
+    };
+
+    local_free lf_ = { lpMsgBuf };
+
+    if( retval == 0 )
+    {
+        char buffer[ 38 ];
+
+        std::sprintf( buffer, "Unknown error (%d)", ev );
+        return buffer;
+    }
+
+    std::string str( static_cast<char const*>( lpMsgBuf ) );
+
+    while( !str.empty() && (str[str.size()-1] == '\n' || str[str.size()-1] == '\r') )
+    {
+        str.erase( str.size()-1 );
+    }
+
+    if( !str.empty() && str[str.size()-1] == '.' )
+    {
+        str.erase( str.size()-1 );
+    }
+
+    return str;
+}
+
+#else
+
+std::string sys_strerror( int ev )
+{
+    return std::strerror( ev );
+}
+
+#endif
+
+//
+
+namespace sys = boost::system;
+
+static void test_message( sys::error_category const & cat, int ev )
+{
+    BOOST_TEST_EQ( cat.message( ev ), sys_strerror( ev ) );
+
+    char buffer[ 2048 ]; // yes, really
+    BOOST_TEST_CSTR_EQ( cat.message( ev, buffer, sizeof( buffer ) ), sys_strerror( ev ).c_str() );
+}
+
+int main()
+{
+    sys::error_category const & cat = sys::system_category();
+
+    // message
+
+    for( int i = -2; i < 1024; ++i )
+    {
+        test_message( cat, i );
+    }
+
+    test_message( cat, 5810 );
+
+    for( int i = 10000; i < 11032; ++i )
+    {
+        test_message( cat, i );
+    }
+
+    return boost::report_errors();
+}

test/system_error_test.cpp

@@ -1,7 +1,7 @@
 //  system_error_test.cpp  ---------------------------------------------------//
 
 //  Copyright Beman Dawes 2006
-
+//  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)
 
@@ -9,9 +9,6 @@
 
 //----------------------------------------------------------------------------// 
 
-//  test without deprecated features
-#define BOOST_SYSTEM_NO_DEPRECATED
-
 #include <boost/config/warning_disable.hpp>
 
 #include <boost/detail/lightweight_test.hpp>
@@ -40,7 +37,7 @@ namespace
     BOOST_TEST( ex.code().category() == system_category() );
 # ifdef BOOST_WINDOWS_API
     LANGID language_id;
-#   if !defined(__MINGW32__) && !defined(__CYGWIN__)
+#   if !defined(__MINGW32__) && !defined(__CYGWIN__) && !BOOST_PLAT_WINDOWS_RUNTIME
       language_id = ::GetUserDefaultUILanguage();
 #   else
       language_id = 0x0409; // Assume US English

test/system_msvc/common.vsprops

@@ -1,19 +0,0 @@
-<?xml version="1.0" encoding="Windows-1252"?>
-<VisualStudioPropertySheet
-	ProjectType="Visual C++"
-	Version="8.00"
-	Name="common"
-	>
-	<Tool
-		Name="VCCLCompilerTool"
-		AdditionalIncludeDirectories="../../../../.."
-		PreprocessorDefinitions="BOOST_ALL_NO_LIB;BOOST_ALL_DYN_LINK"
-		ExceptionHandling="2"
-		WarningLevel="4"
-	/>
-	<Tool
-		Name="VCPostBuildEventTool"
-		Description=""
-		CommandLine=""
-	/>
-</VisualStudioPropertySheet>

test/system_msvc/error_code_test/error_code_test.vcproj

@@ -1,199 +0,0 @@
-<?xml version="1.0" encoding="Windows-1252"?>
-<VisualStudioProject
-	ProjectType="Visual C++"
-	Version="9.00"
-	Name="error_code_test"
-	ProjectGUID="{81960557-E9A9-4E81-AC96-9E11C33CB058}"
-	RootNamespace="error_code_test"
-	Keyword="Win32Proj"
-	TargetFrameworkVersion="196613"
-	>
-	<Platforms>
-		<Platform
-			Name="Win32"
-		/>
-	</Platforms>
-	<ToolFiles>
-	</ToolFiles>
-	<Configurations>
-		<Configuration
-			Name="Debug|Win32"
-			OutputDirectory="$(SolutionDir)$(ConfigurationName)"
-			IntermediateDirectory="$(ConfigurationName)"
-			ConfigurationType="1"
-			InheritedPropertySheets="..\common.vsprops"
-			CharacterSet="1"
-			>
-			<Tool
-				Name="VCPreBuildEventTool"
-			/>
-			<Tool
-				Name="VCCustomBuildTool"
-			/>
-			<Tool
-				Name="VCXMLDataGeneratorTool"
-			/>
-			<Tool
-				Name="VCWebServiceProxyGeneratorTool"
-			/>
-			<Tool
-				Name="VCMIDLTool"
-			/>
-			<Tool
-				Name="VCCLCompilerTool"
-				Optimization="0"
-				PreprocessorDefinitions="WIN32;_DEBUG;_CONSOLE"
-				MinimalRebuild="true"
-				BasicRuntimeChecks="3"
-				RuntimeLibrary="3"
-				UsePrecompiledHeader="0"
-				WarningLevel="4"
-				DebugInformationFormat="4"
-			/>
-			<Tool
-				Name="VCManagedResourceCompilerTool"
-			/>
-			<Tool
-				Name="VCResourceCompilerTool"
-			/>
-			<Tool
-				Name="VCPreLinkEventTool"
-			/>
-			<Tool
-				Name="VCLinkerTool"
-				LinkIncremental="2"
-				GenerateDebugInformation="true"
-				SubSystem="1"
-				TargetMachine="1"
-			/>
-			<Tool
-				Name="VCALinkTool"
-			/>
-			<Tool
-				Name="VCManifestTool"
-			/>
-			<Tool
-				Name="VCXDCMakeTool"
-			/>
-			<Tool
-				Name="VCBscMakeTool"
-			/>
-			<Tool
-				Name="VCFxCopTool"
-			/>
-			<Tool
-				Name="VCAppVerifierTool"
-			/>
-			<Tool
-				Name="VCPostBuildEventTool"
-				Description="Executing test $(TargetName).exe..."
-				CommandLine="&quot;$(TargetDir)\$(TargetName).exe&quot; --result_code=no --report_level=no"
-			/>
-		</Configuration>
-		<Configuration
-			Name="Release|Win32"
-			OutputDirectory="$(SolutionDir)$(ConfigurationName)"
-			IntermediateDirectory="$(ConfigurationName)"
-			ConfigurationType="1"
-			InheritedPropertySheets="..\common.vsprops"
-			CharacterSet="1"
-			WholeProgramOptimization="1"
-			>
-			<Tool
-				Name="VCPreBuildEventTool"
-			/>
-			<Tool
-				Name="VCCustomBuildTool"
-			/>
-			<Tool
-				Name="VCXMLDataGeneratorTool"
-			/>
-			<Tool
-				Name="VCWebServiceProxyGeneratorTool"
-			/>
-			<Tool
-				Name="VCMIDLTool"
-			/>
-			<Tool
-				Name="VCCLCompilerTool"
-				Optimization="2"
-				EnableIntrinsicFunctions="true"
-				PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE"
-				RuntimeLibrary="2"
-				EnableFunctionLevelLinking="true"
-				UsePrecompiledHeader="0"
-				WarningLevel="4"
-				DebugInformationFormat="3"
-			/>
-			<Tool
-				Name="VCManagedResourceCompilerTool"
-			/>
-			<Tool
-				Name="VCResourceCompilerTool"
-			/>
-			<Tool
-				Name="VCPreLinkEventTool"
-			/>
-			<Tool
-				Name="VCLinkerTool"
-				LinkIncremental="1"
-				GenerateDebugInformation="true"
-				SubSystem="1"
-				OptimizeReferences="2"
-				EnableCOMDATFolding="2"
-				TargetMachine="1"
-			/>
-			<Tool
-				Name="VCALinkTool"
-			/>
-			<Tool
-				Name="VCManifestTool"
-			/>
-			<Tool
-				Name="VCXDCMakeTool"
-			/>
-			<Tool
-				Name="VCBscMakeTool"
-			/>
-			<Tool
-				Name="VCFxCopTool"
-			/>
-			<Tool
-				Name="VCAppVerifierTool"
-			/>
-			<Tool
-				Name="VCPostBuildEventTool"
-				Description="Executing test $(TargetName).exe..."
-				CommandLine="&quot;$(TargetDir)\$(TargetName).exe&quot; --result_code=no --report_level=no"
-			/>
-		</Configuration>
-	</Configurations>
-	<References>
-	</References>
-	<Files>
-		<Filter
-			Name="Source Files"
-			Filter="cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx"
-			UniqueIdentifier="{4FC737F1-C7A5-4376-A066-2A32D752A2FF}"
-			>
-			<File
-				RelativePath="..\..\error_code_test.cpp"
-				>
-			</File>
-		</Filter>
-		<Filter
-			Name="Header Files"
-			Filter="h;hpp;hxx;hm;inl;inc;xsd"
-			UniqueIdentifier="{93995380-89BD-4b04-88EB-625FBE52EBFB}"
-			>
-		</Filter>
-		<Filter
-			Name="Resource Files"
-			Filter="rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav"
-			UniqueIdentifier="{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}"
-			>
-		</Filter>
-	</Files>
-	<Globals>
-	</Globals>
-</VisualStudioProject>

test/system_msvc/system_msvc.sln

@@ -1,57 +0,0 @@
-
-Microsoft Visual Studio Solution File, Format Version 10.00
-# Visual C++ Express 2008
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "error_code_test", "error_code_test\error_code_test.vcproj", "{81960557-E9A9-4E81-AC96-9E11C33CB058}"
-	ProjectSection(ProjectDependencies) = postProject
-		{22892211-A1F3-435B-8B97-A12E8772599E} = {22892211-A1F3-435B-8B97-A12E8772599E}
-	EndProjectSection
-EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "system_error_test", "system_error_test\system_error_test.vcproj", "{CBD12E59-99E5-4F35-9B66-0554D0FBDB76}"
-	ProjectSection(ProjectDependencies) = postProject
-		{22892211-A1F3-435B-8B97-A12E8772599E} = {22892211-A1F3-435B-8B97-A12E8772599E}
-	EndProjectSection
-EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "dynamic_link_test", "dynamic_link_test\dynamic_link_test.vcproj", "{AD186B11-9132-48A9-9F24-3522C2310B0D}"
-	ProjectSection(ProjectDependencies) = postProject
-		{F6D9B408-84A3-405A-93ED-DE5AA8CF84D7} = {F6D9B408-84A3-405A-93ED-DE5AA8CF84D7}
-		{22892211-A1F3-435B-8B97-A12E8772599E} = {22892211-A1F3-435B-8B97-A12E8772599E}
-	EndProjectSection
-EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "system_dll", "system_dll\system_dll.vcproj", "{22892211-A1F3-435B-8B97-A12E8772599E}"
-EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "throw_test_dll", "throw_test_dll\throw_test_dll.vcproj", "{F6D9B408-84A3-405A-93ED-DE5AA8CF84D7}"
-	ProjectSection(ProjectDependencies) = postProject
-		{22892211-A1F3-435B-8B97-A12E8772599E} = {22892211-A1F3-435B-8B97-A12E8772599E}
-	EndProjectSection
-EndProject
-Global
-	GlobalSection(SolutionConfigurationPlatforms) = preSolution
-		Debug|Win32 = Debug|Win32
-		Release|Win32 = Release|Win32
-	EndGlobalSection
-	GlobalSection(ProjectConfigurationPlatforms) = postSolution
-		{81960557-E9A9-4E81-AC96-9E11C33CB058}.Debug|Win32.ActiveCfg = Debug|Win32
-		{81960557-E9A9-4E81-AC96-9E11C33CB058}.Debug|Win32.Build.0 = Debug|Win32
-		{81960557-E9A9-4E81-AC96-9E11C33CB058}.Release|Win32.ActiveCfg = Release|Win32
-		{81960557-E9A9-4E81-AC96-9E11C33CB058}.Release|Win32.Build.0 = Release|Win32
-		{CBD12E59-99E5-4F35-9B66-0554D0FBDB76}.Debug|Win32.ActiveCfg = Debug|Win32
-		{CBD12E59-99E5-4F35-9B66-0554D0FBDB76}.Debug|Win32.Build.0 = Debug|Win32
-		{CBD12E59-99E5-4F35-9B66-0554D0FBDB76}.Release|Win32.ActiveCfg = Release|Win32
-		{CBD12E59-99E5-4F35-9B66-0554D0FBDB76}.Release|Win32.Build.0 = Release|Win32
-		{AD186B11-9132-48A9-9F24-3522C2310B0D}.Debug|Win32.ActiveCfg = Debug|Win32
-		{AD186B11-9132-48A9-9F24-3522C2310B0D}.Debug|Win32.Build.0 = Debug|Win32
-		{AD186B11-9132-48A9-9F24-3522C2310B0D}.Release|Win32.ActiveCfg = Release|Win32
-		{AD186B11-9132-48A9-9F24-3522C2310B0D}.Release|Win32.Build.0 = Release|Win32
-		{22892211-A1F3-435B-8B97-A12E8772599E}.Debug|Win32.ActiveCfg = Debug|Win32
-		{22892211-A1F3-435B-8B97-A12E8772599E}.Debug|Win32.Build.0 = Debug|Win32
-		{22892211-A1F3-435B-8B97-A12E8772599E}.Release|Win32.ActiveCfg = Release|Win32
-		{22892211-A1F3-435B-8B97-A12E8772599E}.Release|Win32.Build.0 = Release|Win32
-		{F6D9B408-84A3-405A-93ED-DE5AA8CF84D7}.Debug|Win32.ActiveCfg = Debug|Win32
-		{F6D9B408-84A3-405A-93ED-DE5AA8CF84D7}.Debug|Win32.Build.0 = Debug|Win32
-		{F6D9B408-84A3-405A-93ED-DE5AA8CF84D7}.Release|Win32.ActiveCfg = Release|Win32
-		{F6D9B408-84A3-405A-93ED-DE5AA8CF84D7}.Release|Win32.Build.0 = Release|Win32
-	EndGlobalSection
-	GlobalSection(SolutionProperties) = preSolution
-		HideSolutionNode = FALSE
-	EndGlobalSection
-EndGlobal

test/throw_test.cpp

@@ -13,19 +13,16 @@
 
 //--------------------------------------------------------------------------------------// 
 
-// define BOOST_SYSTEM_SOURCE so that <boost/system/config.hpp> knows
-// the library is being built (possibly exporting rather than importing code)
-#define BOOST_SYSTEM_SOURCE 
-
 #include <boost/system/system_error.hpp>
+#include <boost/config.hpp>
 
-namespace boost
+#if defined(THROW_DYN_LINK)
+# define EXPORT BOOST_SYMBOL_EXPORT
+#else
+# define EXPORT
+#endif
+
+EXPORT void throw_test()
 {
-  namespace system
-  {
-    BOOST_SYSTEM_DECL void throw_test()
-    {
-      throw system_error(9999, system_category(), "boo boo");
-    }
-  }
+    throw boost::system::system_error( 9999, boost::system::system_category(), "boo boo" );
 }

test/throws_assign_fail.cpp

@@ -0,0 +1,28 @@
+
+// Copyright 2018 Peter Dimov.
+// Distributed under the Boost Software License, Version 1.0.
+
+#include <boost/system/error_code.hpp>
+
+using namespace boost::system;
+
+static void f( error_code & ec )
+{
+    ec = error_code();
+}
+
+#if defined(_WIN32)
+# include <windows.h> // SetErrorMode
+#endif
+
+int main()
+{
+#if defined(_WIN32)
+
+    SetErrorMode( SetErrorMode( 0 ) | SEM_NOGPFAULTERRORBOX );
+
+#endif
+
+    // this should crash
+    f( boost::throws() );
+}

test/win32_hresult_test.cpp

@@ -0,0 +1,41 @@
+
+// Copyright 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
+
+// See library home page at http://www.boost.org/libs/system
+
+#include <boost/system/error_code.hpp>
+#include <boost/config/pragma_message.hpp>
+
+#if !defined(BOOST_WINDOWS_API)
+
+BOOST_PRAGMA_MESSAGE( "Skipping test, BOOST_WINDOWS_API is not defined" )
+int main() {}
+
+#else
+
+#include <boost/core/lightweight_test.hpp>
+#include <windows.h>
+
+int main()
+{
+    namespace sys = boost::system;
+
+    HRESULT r = HRESULT_FROM_WIN32( ERROR_ACCESS_DENIED );
+
+    sys::error_code ec( r, sys::system_category() );
+    sys::error_condition en = make_error_condition( sys::errc::permission_denied );
+
+    BOOST_TEST( ec == en );
+    BOOST_TEST( ec.default_error_condition() == en );
+
+    BOOST_TEST_EQ( ec.default_error_condition().value(), en.value() );
+
+    return boost::report_errors();
+}
+
+#endif