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53 lines
1.3 KiB
C++
53 lines
1.3 KiB
C++
#pragma once
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namespace Common {
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template<typename T>
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constexpr bool IsAligned(T value, unsigned int alignment)
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{
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return (value % static_cast<T>(alignment)) == 0;
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}
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template<typename T>
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constexpr T AlignUp(T value, unsigned int alignment)
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{
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return (value + static_cast<T>(alignment - 1)) / static_cast<T>(alignment) * static_cast<T>(alignment);
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}
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template<typename T>
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constexpr T AlignDown(T value, unsigned int alignment)
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{
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return value / static_cast<T>(alignment) * static_cast<T>(alignment);
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}
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template<typename T>
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constexpr bool IsAlignedPow2(T value, unsigned int alignment)
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{
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return (value & static_cast<T>(alignment - 1)) == 0;
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}
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template<typename T>
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constexpr T AlignUpPow2(T value, unsigned int alignment)
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{
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return (value + static_cast<T>(alignment - 1)) & static_cast<T>(~static_cast<T>(alignment - 1));
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}
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template<typename T>
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constexpr T AlignDownPow2(T value, unsigned int alignment)
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{
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return value & static_cast<T>(~static_cast<T>(alignment - 1));
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}
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template<typename T>
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constexpr bool IsPow2(T value)
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{
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return (value & (value - 1)) == 0;
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}
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template<typename T>
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constexpr T PreviousPow2(T value)
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{
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if (value == static_cast<T>(0))
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return 0;
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value |= (value >> 1);
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value |= (value >> 2);
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value |= (value >> 4);
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value |= (value >> 8);
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value |= (value >> 16);
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return value - (value >> 1);
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}
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} // namespace Common
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