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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
This commit is contained in:
Antonio Sanchez
Rasmus Munk Larsen
parent
82d61af3a4
commit
2468253c9a
@ -72,7 +72,7 @@ template<typename T>
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struct functor_traits<std::not_equal_to<T> >
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{ enum { Cost = 1, PacketAccess = false }; };
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#if (__cplusplus < 201103L) && (EIGEN_COMP_MSVC <= 1900)
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#if (EIGEN_COMP_CXXVER < 11)
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// std::binder* are deprecated since c++11 and will be removed in c++17
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template<typename T>
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struct functor_traits<std::binder2nd<T> >
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@ -83,7 +83,7 @@ struct functor_traits<std::binder1st<T> >
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{ enum { Cost = functor_traits<T>::Cost, PacketAccess = false }; };
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#endif
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#if (__cplusplus < 201703L) && (EIGEN_COMP_MSVC < 1910)
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#if (EIGEN_COMP_CXXVER < 17)
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// std::unary_negate is deprecated since c++17 and will be removed in c++20
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template<typename T>
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struct functor_traits<std::unary_negate<T> >
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@ -609,18 +609,36 @@
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#define EIGEN_HAS_STATIC_ARRAY_TEMPLATE 0
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#endif
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// The macro EIGEN_CPLUSPLUS is a replacement for __cplusplus/_MSVC_LANG that
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// works for both platforms, indicating the C++ standard version number.
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//
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// With MSVC, without defining /Zc:__cplusplus, the __cplusplus macro will
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// report 199711L regardless of the language standard specified via /std.
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// We need to rely on _MSVC_LANG instead, which is only available after
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// VS2015.3.
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#if EIGEN_COMP_MSVC_LANG > 0
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#define EIGEN_CPLUSPLUS EIGEN_COMP_MSVC_LANG
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#elif EIGEN_COMP_MSVC >= 1900
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#define EIGEN_CPLUSPLUS 201103L
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#elif defined(__cplusplus)
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#define EIGEN_CPLUSPLUS __cplusplus
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#else
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#define EIGEN_CPLUSPLUS 0
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#endif
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// The macro EIGEN_COMP_CXXVER defines the c++ verson expected by the compiler.
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// For instance, if compiling with gcc and -std=c++17, then EIGEN_COMP_CXXVER
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// is defined to 17.
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#if (defined(__cplusplus) && (__cplusplus > 201402L) || EIGEN_COMP_MSVC_LANG > 201402L)
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#define EIGEN_COMP_CXXVER 17
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#elif (defined(__cplusplus) && (__cplusplus > 201103L) || EIGEN_COMP_MSVC >= 1910)
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#define EIGEN_COMP_CXXVER 14
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#elif (defined(__cplusplus) && (__cplusplus >= 201103L) || EIGEN_COMP_MSVC >= 1900)
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#define EIGEN_COMP_CXXVER 11
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#if EIGEN_CPLUSPLUS > 201703L
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#define EIGEN_COMP_CXXVER 20
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#elif EIGEN_CPLUSPLUS > 201402L
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#define EIGEN_COMP_CXXVER 17
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#elif EIGEN_CPLUSPLUS > 201103L
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#define EIGEN_COMP_CXXVER 14
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#elif EIGEN_CPLUSPLUS >= 201103L
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#define EIGEN_COMP_CXXVER 11
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#else
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#define EIGEN_COMP_CXXVER 03
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#define EIGEN_COMP_CXXVER 03
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#endif
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@ -645,8 +663,7 @@
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#ifndef EIGEN_HAS_RVALUE_REFERENCES
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#if EIGEN_MAX_CPP_VER>=11 && \
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(__has_feature(cxx_rvalue_references) || \
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(defined(__cplusplus) && __cplusplus >= 201103L) || \
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(EIGEN_COMP_MSVC >= 1600))
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(EIGEN_COMP_CXXVER >= 11) || (EIGEN_COMP_MSVC >= 1600))
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#define EIGEN_HAS_RVALUE_REFERENCES 1
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#else
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#define EIGEN_HAS_RVALUE_REFERENCES 0
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@ -731,12 +748,12 @@
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// Does the compiler support variadic templates?
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#ifndef EIGEN_HAS_VARIADIC_TEMPLATES
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#if EIGEN_MAX_CPP_VER>=11 && (__cplusplus > 199711L || EIGEN_COMP_MSVC >= 1900) \
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#if EIGEN_MAX_CPP_VER>=11 && (EIGEN_COMP_CXXVER >= 11) \
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&& (!defined(__NVCC__) || !EIGEN_ARCH_ARM_OR_ARM64 || (EIGEN_COMP_NVCC >= 80000) )
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// ^^ Disable the use of variadic templates when compiling with versions of nvcc older than 8.0 on ARM devices:
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// this prevents nvcc from crashing when compiling Eigen on Tegra X1
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#define EIGEN_HAS_VARIADIC_TEMPLATES 1
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#elif EIGEN_MAX_CPP_VER>=11 && (__cplusplus > 199711L || EIGEN_COMP_MSVC >= 1900) && defined(SYCL_DEVICE_ONLY)
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#elif EIGEN_MAX_CPP_VER>=11 && (EIGEN_COMP_CXXVER >= 11) && defined(SYCL_DEVICE_ONLY)
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#define EIGEN_HAS_VARIADIC_TEMPLATES 1
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#else
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#define EIGEN_HAS_VARIADIC_TEMPLATES 0
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@ -747,12 +764,12 @@
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#ifndef EIGEN_HAS_CONSTEXPR
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#if defined(EIGEN_CUDACC)
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// Const expressions are supported provided that c++11 is enabled and we're using either clang or nvcc 7.5 or above
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#if EIGEN_MAX_CPP_VER>=14 && (__cplusplus > 199711L && (EIGEN_COMP_CLANG || EIGEN_COMP_NVCC >= 70500))
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#if EIGEN_MAX_CPP_VER>=14 && (EIGEN_COMP_CXXVER >= 11 && (EIGEN_COMP_CLANG || EIGEN_COMP_NVCC >= 70500))
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#define EIGEN_HAS_CONSTEXPR 1
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#endif
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#elif EIGEN_MAX_CPP_VER>=14 && (__has_feature(cxx_relaxed_constexpr) || (defined(__cplusplus) && __cplusplus >= 201402L) || \
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(EIGEN_GNUC_AT_LEAST(4,8) && (__cplusplus > 199711L)) || \
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(EIGEN_COMP_CLANG >= 306 && (__cplusplus > 199711L)))
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#elif EIGEN_MAX_CPP_VER>=14 && (__has_feature(cxx_relaxed_constexpr) || (EIGEN_COMP_CXXVER >= 14) || \
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(EIGEN_GNUC_AT_LEAST(4,8) && (EIGEN_COMP_CXXVER >= 11)) || \
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(EIGEN_COMP_CLANG >= 306 && (EIGEN_COMP_CXXVER >= 11)))
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#define EIGEN_HAS_CONSTEXPR 1
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#endif
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@ -771,7 +788,7 @@
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// Does the compiler support C++11 math?
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// Let's be conservative and enable the default C++11 implementation only if we are sure it exists
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#ifndef EIGEN_HAS_CXX11_MATH
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#if EIGEN_MAX_CPP_VER>=11 && ((__cplusplus > 201103L) || (__cplusplus >= 201103L) && (EIGEN_COMP_GNUC_STRICT || EIGEN_COMP_CLANG || EIGEN_COMP_MSVC || EIGEN_COMP_ICC) \
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#if EIGEN_MAX_CPP_VER>=11 && ((EIGEN_COMP_CXXVER > 11) || (EIGEN_COMP_CXXVER == 11) && (EIGEN_COMP_GNUC_STRICT || EIGEN_COMP_CLANG || EIGEN_COMP_MSVC || EIGEN_COMP_ICC) \
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&& (EIGEN_ARCH_i386_OR_x86_64) && (EIGEN_OS_GNULINUX || EIGEN_OS_WIN_STRICT || EIGEN_OS_MAC))
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#define EIGEN_HAS_CXX11_MATH 1
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#else
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@ -782,9 +799,8 @@
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// Does the compiler support proper C++11 containers?
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#ifndef EIGEN_HAS_CXX11_CONTAINERS
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#if EIGEN_MAX_CPP_VER>=11 && \
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((__cplusplus > 201103L) \
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|| ((__cplusplus >= 201103L) && (EIGEN_COMP_GNUC_STRICT || EIGEN_COMP_CLANG || EIGEN_COMP_ICC>=1400)) \
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|| EIGEN_COMP_MSVC >= 1900)
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((EIGEN_COMP_CXXVER > 11) \
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|| ((EIGEN_COMP_CXXVER == 11) && (EIGEN_COMP_GNUC_STRICT || EIGEN_COMP_CLANG || EIGEN_COMP_MSVC || EIGEN_COMP_ICC>=1400)))
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#define EIGEN_HAS_CXX11_CONTAINERS 1
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#else
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#define EIGEN_HAS_CXX11_CONTAINERS 0
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@ -795,9 +811,8 @@
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#ifndef EIGEN_HAS_CXX11_NOEXCEPT
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#if EIGEN_MAX_CPP_VER>=11 && \
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(__has_feature(cxx_noexcept) \
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|| (__cplusplus > 201103L) \
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|| ((__cplusplus >= 201103L) && (EIGEN_COMP_GNUC_STRICT || EIGEN_COMP_CLANG || EIGEN_COMP_ICC>=1400)) \
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|| EIGEN_COMP_MSVC >= 1900)
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|| (EIGEN_COMP_CXXVER > 11) \
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|| ((EIGEN_COMP_CXXVER == 11) && (EIGEN_COMP_GNUC_STRICT || EIGEN_COMP_CLANG || EIGEN_COMP_MSVC || EIGEN_COMP_ICC>=1400)))
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#define EIGEN_HAS_CXX11_NOEXCEPT 1
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#else
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#define EIGEN_HAS_CXX11_NOEXCEPT 0
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@ -807,8 +822,8 @@
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#ifndef EIGEN_HAS_CXX11_ATOMIC
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#if EIGEN_MAX_CPP_VER>=11 && \
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(__has_feature(cxx_atomic) \
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|| (__cplusplus > 201103L) \
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|| ((__cplusplus >= 201103L) && (EIGEN_COMP_MSVC==0 || EIGEN_COMP_MSVC >= 1700)))
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|| (EIGEN_COMP_CXXVER > 11) \
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|| ((EIGEN_COMP_CXXVER == 11) && (EIGEN_COMP_MSVC==0 || EIGEN_COMP_MSVC >= 1700)))
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#define EIGEN_HAS_CXX11_ATOMIC 1
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#else
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#define EIGEN_HAS_CXX11_ATOMIC 0
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@ -817,7 +832,7 @@
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#ifndef EIGEN_HAS_CXX11_OVERRIDE_FINAL
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#if EIGEN_MAX_CPP_VER>=11 && \
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(__cplusplus >= 201103L || EIGEN_COMP_MSVC >= 1700)
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(EIGEN_COMP_CXXVER >= 11 || EIGEN_COMP_MSVC >= 1700)
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#define EIGEN_HAS_CXX11_OVERRIDE_FINAL 1
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#else
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#define EIGEN_HAS_CXX11_OVERRIDE_FINAL 0
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@ -27,7 +27,7 @@
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#ifndef EIGEN_STATIC_ASSERT
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#ifndef EIGEN_NO_STATIC_ASSERT
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#if EIGEN_MAX_CPP_VER>=11 && (__has_feature(cxx_static_assert) || (defined(__cplusplus) && __cplusplus >= 201103L) || (EIGEN_COMP_MSVC >= 1600))
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#if EIGEN_MAX_CPP_VER>=11 && (__has_feature(cxx_static_assert) || (EIGEN_COMP_CXXVER >= 11) || (EIGEN_COMP_MSVC >= 1600))
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// if native static_assert is enabled, let's use it
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#define EIGEN_STATIC_ASSERT(X,MSG) static_assert(X,#MSG);
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@ -56,7 +56,7 @@ int main()
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B = mat_indexing(A, ri+1, ci);
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std::cout << "A(ri+1,ci) =" << std::endl;
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std::cout << B << std::endl << std::endl;
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#if __cplusplus >= 201103L
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#if EIGEN_COMP_CXXVER >= 11
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B = mat_indexing(A, ArrayXi::LinSpaced(13,0,12).unaryExpr([](int x){return x%4;}), ArrayXi::LinSpaced(4,0,3));
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std::cout << "A(ArrayXi::LinSpaced(13,0,12).unaryExpr([](int x){return x%4;}), ArrayXi::LinSpaced(4,0,3)) =" << std::endl;
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std::cout << B << std::endl << std::endl;
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@ -45,7 +45,7 @@
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#include <queue>
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#include <cassert>
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#include <list>
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#if __cplusplus >= 201103L
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#if __cplusplus >= 201103L || (defined(_MSVC_LANG) && _MSVC_LANG >= 201103L)
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#include <random>
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#include <chrono>
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#ifdef EIGEN_USE_THREADS
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@ -761,7 +761,7 @@ void packetmath_real() {
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}
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}
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#if EIGEN_HAS_C99_MATH && (__cplusplus > 199711L)
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#if EIGEN_HAS_C99_MATH && (EIGEN_COMP_CXXVER >= 11)
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data1[0] = std::numeric_limits<Scalar>::infinity();
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data1[1] = Scalar(-1);
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CHECK_CWISE1_IF(PacketTraits::HasLog1p, std::log1p, internal::plog1p);
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@ -413,7 +413,7 @@ template<typename SparseMatrixType> void sparse_basic(const SparseMatrixType& re
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m.setFromTriplets(triplets.begin(), triplets.end(), std::multiplies<Scalar>());
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VERIFY_IS_APPROX(m, refMat_prod);
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#if (defined(__cplusplus) && __cplusplus >= 201103L)
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#if (EIGEN_COMP_CXXVER >= 11)
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m.setFromTriplets(triplets.begin(), triplets.end(), [] (Scalar,Scalar b) { return b; });
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VERIFY_IS_APPROX(m, refMat_last);
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#endif
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@ -30,7 +30,7 @@
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// The code depends on CXX11, so only include the module if the
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// compiler supports it.
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#if __cplusplus > 199711L || EIGEN_COMP_MSVC >= 1900
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#if (EIGEN_COMP_CXXVER >= 11)
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#include <cstddef>
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#include <cstring>
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#include <time.h>
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@ -32,7 +32,7 @@
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* On the other hand, visual studio still doesn't claim to support C++11 although it's
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* compliant enugh for our purpose.
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*/
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#if (__cplusplus <= 199711L) && (EIGEN_COMP_MSVC < 1900)
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#if (EIGEN_COMP_CXXVER < 11)
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#if defined(__GNUC__) && !defined(__clang__) && !defined(__INTEL_COMPILER)
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#pragma GCC diagnostic error "-Wfatal-errors"
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#endif
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@ -114,7 +114,7 @@ template<typename Scalar,typename Packet> void packetmath_real()
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Scalar(std::pow(Scalar(10), internal::random<Scalar>(Scalar(-1),Scalar(2))));
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}
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#if EIGEN_HAS_C99_MATH && (__cplusplus > 199711L)
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#if EIGEN_HAS_C99_MATH && (EIGEN_COMP_CXXVER >= 11)
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CHECK_CWISE1_IF(internal::packet_traits<Scalar>::HasLGamma, std::lgamma, internal::plgamma);
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CHECK_CWISE1_IF(internal::packet_traits<Scalar>::HasErf, std::erf, internal::perf);
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CHECK_CWISE1_IF(internal::packet_traits<Scalar>::HasErfc, std::erfc, internal::perfc);
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