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maths: add is_nan for arbitrary types

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This commit is contained in:
Danny Robson 2017-01-23 21:47:53 +11:00
parent 5bb55f5437
commit 6f4bc6d6b2
1 changed files with 24 additions and 0 deletions
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24
maths.hpp
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@ -176,6 +176,30 @@ namespace util {
} }
//-------------------------------------------------------------------------
template <typename T>
constexpr
typename std::enable_if_t<
std::is_floating_point<T>::value, bool
>
is_nan (T t)
{
return std::isnan (t);
}
//-------------------------------------------------------------------------
template <typename T>
constexpr
typename std::enable_if_t<
!std::is_floating_point<T>::value, bool
>
is_nan (const T&)
{
return false;
}
/////////////////////////////////////////////////////////////////////////// ///////////////////////////////////////////////////////////////////////////
template <typename T> template <typename T>
T T