From 2468253c9adbb1e42be9227848c2d9a7b578dbaf Mon Sep 17 00:00:00 2001 From: Antonio Sanchez Date: Mon, 1 Mar 2021 15:57:22 -0800 Subject: Define EIGEN_CPLUSPLUS and replace most __cplusplus checks. The macro `__cplusplus` is not defined correctly in MSVC unless building with the the `/Zc:__cplusplus` flag. Instead, it defines `_MSVC_LANG` to the specified c++ standard version number. Here we introduce `EIGEN_CPLUSPLUS` which will contain the c++ version number both for MSVC and otherwise. This simplifies checks for supported features. Also replaced most instances of standard version checking via `__cplusplus` with the existing `EIGEN_COMP_CXXVER` macro for better clarity. Fixes: #2170 --- unsupported/Eigen/CXX11/ThreadPool | 2 +- unsupported/Eigen/CXX11/src/util/CXX11Workarounds.h | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) (limited to 'unsupported/Eigen') diff --git a/unsupported/Eigen/CXX11/ThreadPool b/unsupported/Eigen/CXX11/ThreadPool index 5f59e9714..c5cafb2a1 100644 --- a/unsupported/Eigen/CXX11/ThreadPool +++ b/unsupported/Eigen/CXX11/ThreadPool @@ -30,7 +30,7 @@ // The code depends on CXX11, so only include the module if the // compiler supports it. -#if __cplusplus > 199711L || EIGEN_COMP_MSVC >= 1900 +#if (EIGEN_COMP_CXXVER >= 11) #include #include #include diff --git a/unsupported/Eigen/CXX11/src/util/CXX11Workarounds.h b/unsupported/Eigen/CXX11/src/util/CXX11Workarounds.h index f1c0284ea..056736c39 100644 --- a/unsupported/Eigen/CXX11/src/util/CXX11Workarounds.h +++ b/unsupported/Eigen/CXX11/src/util/CXX11Workarounds.h @@ -32,7 +32,7 @@ * On the other hand, visual studio still doesn't claim to support C++11 although it's * compliant enugh for our purpose. */ -#if (__cplusplus <= 199711L) && (EIGEN_COMP_MSVC < 1900) +#if (EIGEN_COMP_CXXVER < 11) #if defined(__GNUC__) && !defined(__clang__) && !defined(__INTEL_COMPILER) #pragma GCC diagnostic error "-Wfatal-errors" #endif -- cgit v1.2.3