round2.hpp File Reference

Defines a function which rounds up to the next highest power of 2. More...

#include <cstdint>

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Functions
std::uint8_t	pstore::round_to_power_of_2 (std::uint8_t v) noexcept
std::uint16_t	pstore::round_to_power_of_2 (std::uint16_t v) noexcept
std::uint32_t	pstore::round_to_power_of_2 (std::uint32_t v) noexcept
std::uint64_t	pstore::round_to_power_of_2 (std::uint64_t v) noexcept

Detailed Description

Defines a function which rounds up to the next highest power of 2.

The implementation of these functions is based on code published in the "Bit Twiddling Hacks" web page by Sean Eron Anderson (seand.nosp@m.er@c.nosp@m.s.sta.nosp@m.nfor.nosp@m.d.edu) found at https://graphics.stanford.edu/~seander/bithacks.html#RoundUpPowerOf2. The original code is public domain.