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Remove ceil2/floor2 from types.h

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This commit is contained in:
Nekotekina
2020-12-12 14:38:07 +03:00
parent dff4392c10
commit 666a18f5e5
2 changed files with 2 additions and 34 deletions
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Utilities/types.h
-31
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@@ -890,34 +890,3 @@ inline void busy_wait(std::size_t cycles = 3000)
const u64 s = __rdtsc();
do _mm_pause(); while (__rdtsc() - s < cycles);
}
// TODO: Remove when moving to c++20
template <typename T>
inline constexpr uintmax_t floor2(T value)
{
value >>= 1;
for (uintmax_t i = 0;; i++, value >>= 1)
{
if (value == 0)
{
return i;
}
}
}
template <typename T>
inline constexpr uintmax_t ceil2(T value)
{
const uintmax_t ispow2 = value & (value - 1); // if power of 2 the result is 0
value >>= 1;
for (uintmax_t i = 0;; i++, value >>= 1)
{
if (value == 0)
{
return i + std::min<uintmax_t>(ispow2, 1);
}
}
}