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compat.h: Add some more math stuff to support the next commit.

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git-svn-id: https://svn.eduke32.com/eduke32@6138 1a8010ca-5511-0410-912e-c29ae57300e0
This commit is contained in:
hendricks266 2017-06-05 10:05:03 +00:00
parent 83c06a63b9
commit 5a0ed69310
1 changed files with 25 additions and 0 deletions
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25
source/build/include/compat.h
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@ -643,11 +643,17 @@ using std::is_integral;
# if CXXSTD >= 2014
using std::enable_if_t;
using std::conditional_t;
using std::make_signed_t;
using std::make_unsigned_t;
# elif CXXSTD >= 2011
template <bool B, class T = void>
using enable_if_t = typename std::enable_if<B, T>::type;
template<bool B, class T, class F>
using conditional_t = typename std::conditional<B, T, F>::type;
template <typename T>
using make_signed_t = typename std::make_signed<T>::type;
template <typename T>
using make_unsigned_t = typename std::make_unsigned<T>::type;
# endif
template <size_t size>
@ -938,6 +944,25 @@ CLAMP_DECL float fclamp2(float in, float min, float max) { return in >= max ? ma
#ifdef __cplusplus
#if CXXSTD >= 2011
template <typename T>
struct DivResult
{
T q; // quotient
T r; // remainder
};
template <typename T>
FORCE_INLINE CONSTEXPR DivResult<T> divide(T lhs, T rhs)
{
return DivResult<T>{(T)(lhs / rhs), (T)(lhs % rhs)};
}
template <native_t base, typename T>
FORCE_INLINE CONSTEXPR DivResult<T> divrhs(T lhs)
{
return divide(lhs, (T)base);
}
#endif
template <size_t base, typename T>
CONSTEXPR size_t logbase(T n)
{