simc/event.hpp at shadowlands · simulationcraft/simc https://github.com/simulationcraft/simc/blob/shadowlands/engine/sim/event.hpp

// https://graphics.stanford.edu/~seander/bithacks.html#RoundUpPowerOf2

constexpr unsigned next_power_of_two( unsigned v )

{

v--;

v |= v >> 1;

v |= v >> 2;

v |= v >> 4;

v |= v >> 8;

v |= v >> 16;

v++;

return v;

}