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CommonFuncs: Replace ArraySize define with constexpr equivalent

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This commit is contained in:
Lioncash
2015-09-03 23:39:03 -04:00
parent c5979b47be
commit 3f1b488a12
3 changed files with 7 additions and 9 deletions
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12
Source/Core/Common/CommonFuncs.h
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@ -17,16 +17,14 @@
#include <cstddef>
#include <string>
#include <type_traits>
#include "Common/CommonTypes.h"
// Will fail to compile on a non-array:
// TODO: make this a function when constexpr is available
template <typename T>
struct ArraySizeImpl : public std::extent<T>
{ static_assert(std::is_array<T>::value, "is array"); };
#define ArraySize(x) ArraySizeImpl<decltype(x)>::value
template <typename T, size_t N>
constexpr size_t ArraySize(T (&arr)[N])
{
return N;
}
#define b2(x) ( (x) | ( (x) >> 1) )
#define b4(x) ( b2(x) | ( b2(x) >> 2) )