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Fall back is_integral to std::is_integral in c++11

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This commit is contained in:
Gael Guennebaud 2017-02-13 17:14:26 +01:00
parent 7073430946
commit 5937c4ae32
1 changed files with 5 additions and 2 deletions
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7
Eigen/src/Core/util/Meta.h
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@ -97,6 +97,9 @@ template<> struct is_arithmetic<unsigned int> { enum { value = true }; };
template<> struct is_arithmetic<signed long> { enum { value = true }; };
template<> struct is_arithmetic<unsigned long> { enum { value = true }; };
#if EIGEN_HAS_CXX11
using std::is_integral;
#else
template<typename T> struct is_integral { enum { value = false }; };
template<> struct is_integral<bool> { enum { value = true }; };
template<> struct is_integral<char> { enum { value = true }; };
@ -108,8 +111,8 @@ template<> struct is_integral<signed int> { enum { value = true }; }
template<> struct is_integral<unsigned int> { enum { value = true }; };
template<> struct is_integral<signed long> { enum { value = true }; };
template<> struct is_integral<unsigned long> { enum { value = true }; };
template<> struct is_integral<signed long long int> { enum { value = true }; };
template<> struct is_integral<unsigned long long int> { enum { value = true }; };
#endif
template <typename T> struct add_const { typedef const T type; };
template <typename T> struct add_const<T&> { typedef T& type; };