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Enable C++11 math function in a more conservative manner.

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This commit is contained in:
Gael Guennebaud 2015-06-11 21:45:02 +02:00
parent 916ef52fff
commit 84d103bee8
2 changed files with 14 additions and 11 deletions
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12
Eigen/src/Core/MathFunctions.h
View File

@ -367,7 +367,7 @@ inline NewType cast(const OldType& x)
* Implementation of round *
****************************************************************************/
#if EIGEN_HAS_C99_MATH
#if EIGEN_HAS_CXX11_MATH
template<typename Scalar>
struct round_impl {
static inline Scalar run(const Scalar& x)
@ -401,7 +401,7 @@ struct round_retval
* Implementation of arg *
****************************************************************************/
#if EIGEN_HAS_C99_MATH
#if EIGEN_HAS_CXX11_MATH
template<typename Scalar>
struct arg_impl {
static inline Scalar run(const Scalar& x)
@ -458,7 +458,7 @@ struct log1p_impl
}
};
#ifdef EIGEN_HAS_C99_MATH
#if EIGEN_HAS_CXX11_MATH
template<typename Scalar>
struct log1p_impl<Scalar, false> {
static inline Scalar run(const Scalar& x)
@ -784,7 +784,7 @@ template<typename T>
EIGEN_DEVICE_FUNC
bool (isfinite)(const T& x)
{
#ifdef EIGEN_HAS_C99_MATH
#if EIGEN_HAS_CXX11_MATH
using std::isfinite;
return isfinite(x);
#else
@ -803,7 +803,7 @@ template<typename T>
EIGEN_DEVICE_FUNC
bool (isnan)(const T& x)
{
#ifdef EIGEN_HAS_C99_MATH
#if EIGEN_HAS_CXX11_MATH
using std::isnan;
return isnan(x);
#else
@ -822,7 +822,7 @@ template<typename T>
EIGEN_DEVICE_FUNC
bool (isinf)(const T& x)
{
#ifdef EIGEN_HAS_C99_MATH
#if EIGEN_HAS_CXX11_MATH
using std::isinf;
return isinf(x);
#else

11
Eigen/src/Core/util/Macros.h
View File

@ -415,12 +415,15 @@
#define EIGEN_HAS_CONSTEXPR 1
#endif
// Does the compiler support C99 math?
// Does the compiler support C++11 math?
// Let's be conservative and enable the default C++11 implementation only if we are sure it exists
#ifndef EIGEN_HAS_CXX11_MATH
#if (__cplusplus >= 201103L) && (EIGEN_COMP_GNUC_STRICT || EIGEN_COMP_CLANG || EIGEN_COMP_MSVC || EIGEN_COMP_ICC) \
&& (EIGEN_ARCH_i386_OR_x86_64) && (EIGEN_OS_GNULINUX || EIGEN_OS_WIN_STRICT || EIGEN_OS_MAC) || \
(EIGEN_COMP_GNUC_STRICT || (EIGEN_COMP_ICC && EIGEN_COMP_GNUC) || (EIGEN_COMP_CLANG) || (EIGEN_COMP_MSVC >= 1800))
#define EIGEN_HAS_C99_MATH 1
&& (EIGEN_ARCH_i386_OR_x86_64) && (EIGEN_OS_GNULINUX || EIGEN_OS_WIN_STRICT || EIGEN_OS_MAC)
#define EIGEN_HAS_CXX11_MATH 1
#else
#define EIGEN_HAS_CXX11_MATH 0
#endif
#endif
/** Allows to disable some optimizations which might affect the accuracy of the result.