Function npy_bswap4_unaligned

numpy/core/src/common/lowlevel_strided_loops.h:506–515

}

static inline void
npy_bswap4_unaligned(char * x)
{
    char a = x[0];
    x[0] = x[3];
    x[3] = a;
    a = x[1];
    x[1] = x[2];
    x[2] = a;
}

static inline npy_uint64
npy_bswap8(npy_uint64 x)