annotate src/fftw-3.3.3/libbench2/pow2.c @ 30:553a5f65ef64

Updates to use dw2 exceptions instead of sjlj (in line with Qt5 MinGW distribution)

#include "bench.h"

int power_of_two(int n)
{
     return (((n) > 0) && (((n) & ((n) - 1)) == 0));
}