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| author |  Gael Guennebaud <g.gael@free.fr> | 2019-02-20 13:52:11 +0100 |
|---|---|---|
| committer | Gael Guennebaud <g.gael@free.fr> | 2019-02-20 13:52:11 +0100 |
| commit | edd413c184325eab482a82f68b4308eb2b4f4f9f (patch) | |
| tree | 3173f63b08096c09168549f8e7017fc6518bfb4e /Eigen/src/Core/util/Macros.h | |
| parent | 3b5deeb546d4017b24846f5b0dc3296a50a039fe (diff) | |
bug #1409: make EIGEN_MAKE_ALIGNED_OPERATOR_NEW* macros empty in c++17 mode:
- this helps clang 5 and 6 to support alignas in STL's containers.
- this makes the public API of our (and users) classes cleaner
Diffstat (limited to 'Eigen/src/Core/util/Macros.h')
| -rw-r--r-- | Eigen/src/Core/util/Macros.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/Eigen/src/Core/util/Macros.h b/Eigen/src/Core/util/Macros.h index fd3e43fa0..ffd6a00ca 100644 --- a/Eigen/src/Core/util/Macros.h +++ b/Eigen/src/Core/util/Macros.h @@ -698,6 +698,23 @@ #endif #endif +// NOTE: the required Apple's clang version is very conservative +// and it could be that XCode 9 works just fine. +// NOTE: the MSVC version is based on https://en.cppreference.com/w/cpp/compiler_support +// and not tested. +#ifndef EIGEN_HAS_CXX17_OVERALIGN +#if EIGEN_MAX_CPP_VER>=17 && EIGEN_COMP_CXXVER>=17 && ( \ + (EIGEN_COMP_MSVC >= 1912) \ + || (EIGEN_GNUC_AT_LEAST(7,0)) \ + || ((!defined(__apple_build_version__)) && (EIGEN_COMP_CLANG>=500)) \ + || (( defined(__apple_build_version__)) && (__apple_build_version__>=10000000)) \ + ) +#define EIGEN_HAS_CXX17_OVERALIGN 1 +#else +#define EIGEN_HAS_CXX17_OVERALIGN 0 +#endif +#endif + #if defined(EIGEN_CUDACC) && EIGEN_HAS_CONSTEXPR // While available already with c++11, this is useful mostly starting with c++14 and relaxed constexpr rules #if defined(__NVCC__) |