Add CMake tests

.travis.yml

@@ -6,7 +6,7 @@ language: cpp
 
 sudo: false
 
-python: "2.7"
+dist: xenial
 
 branches:
   only:
@@ -78,6 +78,16 @@ matrix:
           sources:
             - ubuntu-toolchain-r-test
 
+    - os: linux
+      compiler: g++-9
+      env: TOOLSET=gcc COMPILER=g++-9 CXXSTD=11,14,17,2a
+      addons:
+        apt:
+          packages:
+            - g++-9
+          sources:
+            - ubuntu-toolchain-r-test
+
     - os: linux
       compiler: g++-8
       env: UBSAN=1 TOOLSET=gcc COMPILER=g++-8 CXXSTD=11,14,17,2a UBSAN_OPTIONS=print_stacktrace=1 LINKFLAGS=-fuse-ld=gold
@@ -98,7 +108,6 @@ matrix:
             - libstdc++-4.9-dev
           sources:
             - ubuntu-toolchain-r-test
-            - llvm-toolchain-precise-3.5
 
     - os: linux
       compiler: clang++-3.6
@@ -109,7 +118,6 @@ matrix:
             - clang-3.6
           sources:
             - ubuntu-toolchain-r-test
-            - llvm-toolchain-precise-3.6
 
     - os: linux
       compiler: clang++-3.7
@@ -120,7 +128,6 @@ matrix:
             - clang-3.7
           sources:
             - ubuntu-toolchain-r-test
-            - llvm-toolchain-precise-3.7
 
     - os: linux
       compiler: clang++-3.8
@@ -131,7 +138,6 @@ matrix:
             - clang-3.8
           sources:
             - ubuntu-toolchain-r-test
-            - llvm-toolchain-precise-3.8
 
     - os: linux
       compiler: clang++-3.9
@@ -142,7 +148,6 @@ matrix:
             - clang-3.9
           sources:
             - ubuntu-toolchain-r-test
-            - llvm-toolchain-precise-3.9
 
     - os: linux
       compiler: clang++-4.0
@@ -153,7 +158,6 @@ matrix:
             - clang-4.0
           sources:
             - ubuntu-toolchain-r-test
-            - llvm-toolchain-trusty-4.0
 
     - os: linux
       compiler: clang++-5.0
@@ -164,7 +168,6 @@ matrix:
             - clang-5.0
           sources:
             - ubuntu-toolchain-r-test
-            - llvm-toolchain-trusty-5.0
 
     - os: linux
       compiler: clang++-6.0
@@ -175,7 +178,6 @@ matrix:
             - clang-6.0
           sources:
             - ubuntu-toolchain-r-test
-            - llvm-toolchain-trusty-6.0
 
     - os: linux
       compiler: clang++-7
@@ -186,20 +188,45 @@ matrix:
             - clang-7
           sources:
             - ubuntu-toolchain-r-test
-            - llvm-toolchain-trusty-7
+            - llvm-toolchain-xenial-7
 
     - os: linux
-      compiler: clang++-6.0
-      env: UBSAN=1 TOOLSET=clang COMPILER=clang++-6.0 CXXSTD=11,14,17,2a UBSAN_OPTIONS=print_stacktrace=1
+      compiler: clang++-8
+      env: TOOLSET=clang COMPILER=clang++-8 CXXSTD=11,14,17,2a
       addons:
         apt:
           packages:
-            - clang-6.0
+            - clang-8
           sources:
             - ubuntu-toolchain-r-test
-            - llvm-toolchain-trusty-6.0
+            - llvm-toolchain-xenial-8
 
     - os: linux
+      dist: xenial
+      compiler: clang++-9
+      env: TOOLSET=clang COMPILER=clang++-9 CXXSTD=11,14,17,2a
+      addons:
+        apt:
+          packages:
+            - clang-9
+          sources:
+            - ubuntu-toolchain-r-test
+            - sourceline: 'deb https://apt.llvm.org/xenial/ llvm-toolchain-xenial-9 main'
+              key_url: 'https://apt.llvm.org/llvm-snapshot.gpg.key'
+
+    - os: linux
+      compiler: clang++-8
+      env: UBSAN=1 TOOLSET=clang COMPILER=clang++-8 CXXSTD=11,14,17,2a UBSAN_OPTIONS=print_stacktrace=1
+      addons:
+        apt:
+          packages:
+            - clang-8
+          sources:
+            - ubuntu-toolchain-r-test
+            - llvm-toolchain-xenial-8
+
+    - os: linux
+      dist: trusty
       compiler: clang++-libc++
       env: TOOLSET=clang COMPILER=clang++-libc++ CXXSTD=11,14,1z
       addons:
@@ -208,6 +235,7 @@ matrix:
             - libc++-dev
 
     - os: linux
+      dist: trusty
       compiler: clang++-libc++
       env: UBSAN=1 TOOLSET=clang COMPILER=clang++-libc++ CXXSTD=11,14,1z UBSAN_OPTIONS=print_stacktrace=1
       addons:
@@ -219,13 +247,48 @@ matrix:
       compiler: clang++
       env: TOOLSET=clang COMPILER=clang++ CXXSTD=11,14,1z
 
+    - os: osx
+      compiler: clang++
+      env: UBSAN=1 TOOLSET=clang COMPILER=clang++ CXXSTD=11,14,1z UBSAN_OPTIONS=print_stacktrace=1
+
+    - os: linux
+      env: CMAKE_TEST=1
+      script:
+        - mkdir __build__ && cd __build__
+        - cmake -DBOOST_ENABLE_CMAKE=1 -DBoost_VERBOSE=1 -DBOOST_INCLUDE_LIBRARIES=variant2 ..
+        - ctest --output-on-failure -R boost_variant2
+
+    - os: linux
+      compiler: g++
+      env: CMAKE_SUBDIR_TEST=1
+      install:
+        - BOOST_BRANCH=develop && [ "$TRAVIS_BRANCH" == "master" ] && BOOST_BRANCH=master || true
+        - git clone -b $BOOST_BRANCH https://github.com/boostorg/assert.git ../assert
+        - git clone -b $BOOST_BRANCH https://github.com/boostorg/config.git ../config
+        - git clone -b $BOOST_BRANCH https://github.com/boostorg/core.git ../core
+        - git clone -b $BOOST_BRANCH https://github.com/boostorg/mp11.git ../mp11
+      script:
+      - cd test/cmake_subdir_test && mkdir __build__ && cd __build__
+      - cmake ..
+      - cmake --build .
+      - cmake --build . --target check
+
+    - os: linux
+      env: CMAKE_INSTALL_TEST=1
+      script:
+        - mkdir __build__ && cd __build__
+        - cmake -DBOOST_ENABLE_CMAKE=1 -DBoost_VERBOSE=1 -DBOOST_INCLUDE_LIBRARIES="variant2;config;mp11" -DCMAKE_INSTALL_PREFIX=~/.local ..
+        - cmake --build . --target install
+        - cd ../libs/variant2/test/cmake_install_test && mkdir __build__ && cd __build__
+        - cmake -DCMAKE_INSTALL_PREFIX=~/.local ..
+        - cmake --build .
+        - cmake --build . --target check
+
 install:
   - BOOST_BRANCH=develop && [ "$TRAVIS_BRANCH" == "master" ] && BOOST_BRANCH=master || true
   - cd ..
   - 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
   - mkdir -p libs/variant2
   - cp -r $TRAVIS_BUILD_DIR/* libs/variant2

CMakeLists.txt

@@ -0,0 +1,31 @@
+# Copyright 2018, 2019 Peter Dimov
+# Distributed under the Boost Software License, Version 1.0.
+# http://www.boost.org/LICENSE_1_0.txt
+
+cmake_minimum_required(VERSION 3.5...3.16)
+
+project(boost_variant2 VERSION "${BOOST_SUPERPROJECT_VERSION}" LANGUAGES CXX)
+
+add_library(boost_variant2 INTERFACE)
+add_library(Boost::variant2 ALIAS boost_variant2)
+
+target_include_directories(boost_variant2 INTERFACE include)
+
+target_link_libraries(boost_variant2
+  INTERFACE
+    Boost::config
+    Boost::mp11
+)
+
+if(BOOST_SUPERPROJECT_VERSION)
+
+  include(BoostInstall)
+  boost_install(TARGETS boost_variant2 HEADER_DIRECTORY include/)
+
+endif()
+
+if(BUILD_TESTING)
+
+  add_subdirectory(test)
+
+endif()

README.md

@@ -2,15 +2,14 @@
 
 This repository contains a never-valueless, strong guarantee, C++11/14/17
 implementation of [std::variant](http://en.cppreference.com/w/cpp/utility/variant).
-See [the documentation](https://www.boost.org/doc/libs/master/libs/variant2/)
+See [the documentation](https://www.boost.org/libs/variant2)
 for more information.
 
 The code requires [Boost.Mp11](https://github.com/boostorg/mp11) and
 Boost.Config.
 
-The repository is intended to be placed into the `libs/variant2` directory of
-a Boost clone or release, but the header `variant.hpp` will also work
-[standalone](https://godbolt.org/z/nVUNKX).
+The library is part of Boost, starting from release 1.71, but the header
+`variant.hpp` will also work [standalone](https://godbolt.org/z/nVUNKX).
 
 Supported compilers:
 
@@ -19,4 +18,4 @@ Supported compilers:
 * Visual Studio 2015, 2017, 2019
 
 Tested on [Travis](https://travis-ci.org/boostorg/variant2/) and
-[Appveyor](https://ci.appveyor.com/project/pdimov/variant2/).
+[Appveyor](https://ci.appveyor.com/project/pdimov/variant2-fkab9).

doc/variant2/implementation.adoc

@@ -21,5 +21,5 @@ This implementation only depends on Boost.Config and Boost.Mp11.
 * Clang 3.5 or later with `-std=c++11` or above
 * Visual Studio 2015, 2017, 2019
 
-Tested on https://travis-ci.org/pdimov/variant2/[Travis] and
-https://ci.appveyor.com/project/pdimov/variant2/[Appveyor].
+Tested on https://travis-ci.org/boostorg/variant2/[Travis] and
+https://ci.appveyor.com/project/pdimov/variant2-fkab9[Appveyor].

test/CMakeLists.txt

@@ -0,0 +1,11 @@
+# Copyright 2018, 2019 Peter Dimov
+# Distributed under the Boost Software License, Version 1.0.
+# See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt
+
+include(BoostTestJamfile OPTIONAL RESULT_VARIABLE HAVE_BOOST_TEST)
+
+if(HAVE_BOOST_TEST)
+
+boost_test_jamfile(FILE Jamfile LINK_LIBRARIES Boost::variant2 Boost::core)
+
+endif()

test/Jamfile

@@ -23,6 +23,8 @@ project
     <toolset>clang:<warnings-as-errors>on
   ;
 
+run quick.cpp ;
+
 run variant_size.cpp ;
 run variant_alternative.cpp ;
 

test/cmake_install_test/CMakeLists.txt

@@ -0,0 +1,17 @@
+# Copyright 2018, 2019 Peter Dimov
+# Distributed under the Boost Software License, Version 1.0.
+# See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt
+
+cmake_minimum_required(VERSION 3.5...3.16)
+
+project(cmake_install_test LANGUAGES CXX)
+
+find_package(boost_variant2 REQUIRED)
+
+add_executable(quick ../quick.cpp)
+target_link_libraries(quick Boost::variant2)
+
+enable_testing()
+add_test(quick quick)
+
+add_custom_target(check COMMAND ${CMAKE_CTEST_COMMAND} --output-on-failure -C $<CONFIG>)

test/cmake_subdir_test/CMakeLists.txt

@@ -0,0 +1,19 @@
+# Copyright 2018, 2019 Peter Dimov
+# Distributed under the Boost Software License, Version 1.0.
+# See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt
+
+cmake_minimum_required(VERSION 3.5...3.16)
+
+project(cmake_subdir_test LANGUAGES CXX)
+
+add_subdirectory(../.. boostorg/variant2)
+add_subdirectory(../../../config boostorg/config)
+add_subdirectory(../../../mp11 boostorg/mp11)
+
+add_executable(quick ../quick.cpp)
+target_link_libraries(quick Boost::variant2)
+
+enable_testing()
+add_test(quick quick)
+
+add_custom_target(check COMMAND ${CMAKE_CTEST_COMMAND} --output-on-failure -C $<CONFIG>)

test/quick.cpp

@@ -0,0 +1,15 @@
+
+// Copyright 2019 Peter Dimov.
+//
+// Distributed under the Boost Software License, Version 1.0.
+// http://www.boost.org/LICENSE_1_0.txt
+
+#include <boost/variant2/variant.hpp>
+
+using namespace boost::variant2;
+
+int main()
+{
+    variant<float, int> v( 2 );
+    return get<1>( v ) == 2? 0: 1;
+}