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Added BX_ENABLED macro.

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Branimir Karadžić
2014-02-09 14:43:20 -08:00
parent bcac4ab8f1
commit e1942bb490
1 changed files with 15 additions and 1 deletions
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16
include/bx/bx.h
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@@ -16,7 +16,21 @@ namespace bx
{
// http://cnicholson.net/2011/01/stupid-c-tricks-a-better-sizeof_array/
template<typename T, size_t N> char (&COUNTOF_REQUIRES_ARRAY_ARGUMENT(const T(&)[N]) )[N];
#define BX_COUNTOF(x) sizeof(bx::COUNTOF_REQUIRES_ARRAY_ARGUMENT(x) )
#define BX_COUNTOF(_x) sizeof(bx::COUNTOF_REQUIRES_ARRAY_ARGUMENT(_x) )
// Template for avoiding MSVC: C4127: conditional expression is constant
template<bool>
BX_FORCE_INLINE bool isEnabled()
{
return true;
}
template<>
BX_FORCE_INLINE bool isEnabled<false>()
{
return false;
}
#define BX_ENABLED(_x) bx::isEnabled<!!(_x)>()
} // namespace bx