2f76a9bf50
-- 0925eb11f7730d5a1e538b9e6c2d1f8239f5fdc0 by Abseil Team <absl-team@google.com>: Import of CCTZ from GitHub. PiperOrigin-RevId: 250694613 -- 4e1690e492a8399da1b1450ff5f21adf435fcef5 by Greg Falcon <gfalcon@google.com>: Import of CCTZ from GitHub. PiperOrigin-RevId: 250684222 -- c7281b44eb005c21d45bdc0b437e47c7787275bc by Derek Mauro <dmauro@google.com>: Fix warnings on Xcode/clang. PiperOrigin-RevId: 250552120 -- 5ea3b1cfa759a7e6c70e7558f27c762baf818f7d by CJ Johnson <johnsoncj@google.com>: Minor edits to InlinedVector benchmarks: Adds DoNotOptimize to the member functions of NontrivialType, removes unused template parameter for InlVec typeder PiperOrigin-RevId: 250505482 -- 7fe9c02b49121936c5b47034f20272a916111174 by Matt Kulukundis <kfm@google.com>: Internal change. PiperOrigin-RevId: 250376825 -- ad348c9c0eb37449874648e8544c56343c1dfaef by CJ Johnson <johnsoncj@google.com>: Minor edits to InlinedVector benchmark PiperOrigin-RevId: 250361830 -- 55e8b411431e982059af73b160fa6bcef90e87f7 by CJ Johnson <johnsoncj@google.com>: Switches use of allocator_traits to the Abseil backport to leverage existing bug fixes and workarounds PiperOrigin-RevId: 250359321 -- b0edbe3218940128523e36388a31ff90df01a364 by CJ Johnson <johnsoncj@google.com>: Updates exception safety test for InlinedVector to use TYPED_TEST (with fixtures) which increases the coverage without complicating the code. PiperOrigin-RevId: 250359198 -- 8ab55c9a8c191aabcb562cf1789f360eba0b1a81 by Abseil Team <absl-team@google.com>: Internal change. PiperOrigin-RevId: 250281509 -- dd8a67f4f9e5e8930457203c18205183b8306b5a by Abseil Team <absl-team@google.com>: Change the suggestions for the non-strict Next/PrevWeekday() calls. Previously we suggested `PrevWeekday(d, Weekday::thursday) + 7` to get the _following_ Thursday if d is not already a Thursday, but `NextWeekday(d - 1, Weekday::thursday)` is more intuitive, and probably even a little faster. Similarly for the _previous_ Thursday if d is not already a Thursday, suggest `PrevWeekday(d + 1, Weekday::thursday)` instead of `NextWeekday(d, Weekday::thursday) - 7`. PiperOrigin-RevId: 249840844 -- 4775dce26cdb0560011a5d1ecdc8e0c20f856911 by Abseil Team <absl-team@google.com>: Change the DbgHelp lib pragma to use lowercase and an extension. This matches the conventions used in the Windows SDK. PiperOrigin-RevId: 249826229 -- cbc49e865f3715ebe1983307d4f02e50998b2958 by Abseil Team <absl-team@google.com>: Introduce Abseil prefixed thread annotation macros. PiperOrigin-RevId: 249825200 -- 8e97c8dfbadb78743c2421b494398be25f632cb1 by Abseil Team <absl-team@google.com>: Internal change. PiperOrigin-RevId: 249737936 -- 0d720538bc6af3e77ac19def27a4a0514c2800d2 by Abseil Team <absl-team@google.com>: Tell CMake Abseil is a C++ project. PiperOrigin-RevId: 249726509 -- 20651845edf236757b3ffb3eaeff330af81be40a by Abseil Team <absl-team@google.com>: Internal change. PiperOrigin-RevId: 249726377 GitOrigin-RevId: 0925eb11f7730d5a1e538b9e6c2d1f8239f5fdc0 Change-Id: I05d18d30ad4e9ace6b60a17d2dc6fd699643fe30 |
||
---|---|---|
.. | ||
Googletest | ||
install_test_project | ||
AbseilHelpers.cmake | ||
AbseilInstallDirs.cmake | ||
abslConfig.cmake.in | ||
README.md |
Abseil CMake Build Instructions
Abseil comes with a CMake build script (CMakeLists.txt) that can be used on a wide range of platforms ("C" stands for cross-platform.). If you don't have CMake installed already, you can download it for free from https://www.cmake.org/.
CMake works by generating native makefiles or build projects that can be used in the compiler environment of your choice.
For API/ABI compatibility reasons, we strongly recommend building Abseil in a subdirectory of your project or as an embedded dependency.
Incorporating Abseil Into a CMake Project
The recommendations below are similar to those for using CMake within the googletest framework (https://github.com/google/googletest/blob/master/googletest/README.md#incorporating-into-an-existing-cmake-project)
Step-by-Step Instructions
-
If you want to build the Abseil tests, integrate the Abseil dependency Google Test into your CMake project. To disable Abseil tests, you have to pass
-DBUILD_TESTING=OFF
when configuring your project with CMake. -
Download Abseil and copy it into a subdirectory in your CMake project or add Abseil as a git submodule in your CMake project.
-
You can then use the CMake command
add_subdirectory()
to include Abseil directly in your CMake project. -
Add the absl:: target you wish to use to the
target_link_libraries()
section of your executable or of your library.
Here is a short CMakeLists.txt example of a project file using Abseil.
cmake_minimum_required(VERSION 2.8.12)
project(my_project)
set(CMAKE_CXX_FLAGS "-std=c++11 -stdlib=libc++ ${CMAKE_CXX_FLAGS}")
if(MSVC)
# /wd4005 macro-redefinition
# /wd4068 unknown pragma
# /wd4244 conversion from 'type1' to 'type2'
# /wd4267 conversion from 'size_t' to 'type2'
# /wd4800 force value to bool 'true' or 'false' (performance warning)
add_compile_options(/wd4005 /wd4068 /wd4244 /wd4267 /wd4800)
add_definitions(/DNOMINMAX /DWIN32_LEAN_AND_MEAN=1 /D_CRT_SECURE_NO_WARNINGS)
endif()
add_subdirectory(abseil-cpp)
add_executable(my_exe source.cpp)
target_link_libraries(my_exe absl::base absl::synchronization absl::strings)
Running Abseil Tests with CMake
Use the -DABSL_RUN_TESTS=ON
flag to run Abseil tests. Note that if the -DBUILD_TESTING=OFF
flag is passed then Abseil tests will not be run.
You will need to provide Abseil with a Googletest dependency. There are two options for how to do this:
- Use
-DABSL_USE_GOOGLETEST_HEAD
. This will automatically download the latest Googletest source into the build directory at configure time. Googletest will then be compiled directly alongside Abseil's tests. - Manually integrate Googletest with your build. See https://github.com/google/googletest/blob/master/googletest/README.md#using-cmake for more information on using Googletest in a CMake project.
For example, to run just the Abseil tests, you could use this script:
cd path/to/abseil-cpp
mkdir build
cd build
cmake -DABSL_USE_GOOGLETEST_HEAD=ON -DABSL_RUN_TESTS=ON ..
make -j
ctest
Currently, we only run our tests with CMake in a Linux environment, but we are working on the rest of our supported platforms. See https://github.com/abseil/abseil-cpp/projects/1 and https://github.com/abseil/abseil-cpp/issues/109 for more information.
Available Abseil CMake Public Targets
Here's a non-exhaustive list of Abseil CMake public targets:
absl::base
absl::algorithm
absl::debugging
absl::flat_hash_map
absl::memory
absl::meta
absl::numeric
absl::strings
absl::synchronization
absl::time
absl::utility