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AK: Move integral log2 and exp to IntegerMath.h

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Hendiadyoin1 2022-01-29 16:51:02 +01:00 • committed by Brian Gianforcaro
parent f6ddaef8bf
commit fbb798f98c
8 changed files with 20 additions and 16 deletions
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13
AK/IntegralMath.h
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@ -6,6 +6,7 @@
#pragma once
#include <AK/BuiltinWrappers.h>
#include <AK/Concepts.h>
#include <AK/Types.h>
@ -13,6 +14,18 @@
namespace AK {
template<Integral T>
constexpr T exp2(T exponent)
{
return 1u << exponent;
}
template<Integral T>
constexpr T log2(T x)
{
return x ? (8 * sizeof(T) - 1) - count_leading_zeroes(static_cast<MakeUnsigned<T>>(x)) : 0;
}
template<Integral I>
constexpr I pow(I base, I exponent)
{