devtools/eigen
1
0
Fork 0
mirror of https://gitlab.com/libeigen/eigen.git synced 2026-04-10 11:34:33 +08:00
Code Issues Packages Projects Releases Wiki Activity

bug #1584: Improve random (avoid undefined behavior).

Browse Source
This commit is contained in:
Alexey Frunze
2018-08-08 20:19:32 -07:00
parent caf7e6e7a7
commit e6c8d0b72d
2 changed files with 41 additions and 24 deletions
Download Patch File Download Diff File Expand all files Collapse all files

32
Eigen/src/Core/util/Meta.h
View File

@@ -97,17 +97,27 @@ 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 }; };
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 }; };
template<> struct is_integral<signed char> { enum { value = true }; };
template<> struct is_integral<unsigned char> { enum { value = true }; };
template<> struct is_integral<signed short> { enum { value = true }; };
template<> struct is_integral<unsigned short> { enum { value = true }; };
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 }; };
#if EIGEN_HAS_CXX11
using std::make_unsigned;
#else
// TODO: Possibly improve this implementation of make_unsigned.
// It is currently used only by
// template<typename Scalar> struct random_default_impl<Scalar, false, true>.
template<typename> struct make_unsigned;
template<> struct make_unsigned<char> { typedef unsigned char type; };
template<> struct make_unsigned<signed char> { typedef unsigned char type; };
template<> struct make_unsigned<unsigned char> { typedef unsigned char type; };
template<> struct make_unsigned<signed short> { typedef unsigned short type; };
template<> struct make_unsigned<unsigned short> { typedef unsigned short type; };
template<> struct make_unsigned<signed int> { typedef unsigned int type; };
template<> struct make_unsigned<unsigned int> { typedef unsigned int type; };
template<> struct make_unsigned<signed long> { typedef unsigned long type; };
template<> struct make_unsigned<unsigned long> { typedef unsigned long type; };
#if EIGEN_COMP_MSVC
template<> struct make_unsigned<signed __int64> { typedef unsigned __int64 type; };
template<> struct make_unsigned<unsigned __int64> { typedef unsigned __int64 type; };
#endif
#endif
template <typename T> struct add_const { typedef const T type; };
template <typename T> struct add_const<T&> { typedef T& type; };