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t/traits: comments

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This commit is contained in:
Danny Robson 2015-02-18 02:33:51 +11:00
parent cb5e76cff9
commit 8e5bd17974
1 changed files with 4 additions and 2 deletions
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6
types/traits.hpp
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@ -46,7 +46,8 @@ template <typename T> struct dereferenced_type<std::weak_ptr<T>> { typedef T t
template <typename T> struct dereferenced_type<std::auto_ptr<T>> { typedef T type; }; template <typename T> struct dereferenced_type<std::auto_ptr<T>> { typedef T type; };
//----------------------------------------------------------------------------- ///----------------------------------------------------------------------------
/// find the unsigned version of a type if one exists
template <typename T> template <typename T>
struct try_unsigned struct try_unsigned
{ {
@ -58,7 +59,8 @@ template <> struct try_unsigned<double> { typedef double type; };
template <> struct try_unsigned<float > { typedef float type; }; template <> struct try_unsigned<float > { typedef float type; };
//----------------------------------------------------------------------------- ///----------------------------------------------------------------------------
/// checks if a type can be converted in all cases without modification
template <typename T, typename U> struct is_lossless_cast : std::enable_if< template <typename T, typename U> struct is_lossless_cast : std::enable_if<
std::is_integral<T>::value && std::is_integral<T>::value &&
std::is_integral<U>::value && std::is_integral<U>::value &&