Ticket #9208: bswap.h

static inline const uint16_t bswap_16(uint16_t x)
{
    x= (x>>8) | (x<<8);
    return x;
}

static inline const uint32_t bswap_32(uint32_t x)
{
    x= ((x<<8)&0xFF00FF00) | ((x>>8)&0x00FF00FF);
    x= (x>>16) | (x<<16);
    return x;
}

static inline uint64_t const bswap_64(uint64_t x)
{

    union {
        uint64_t ll;
        uint32_t l[2];
    } w, r;
    w.ll = x;
    r.l[0] = bswap_32 (w.l[1]);
    r.l[1] = bswap_32 (w.l[0]);
    return r.ll;

}

static inline double bswap_dbl(double x)
{
    union {
        uint32_t l[2];
        double   d;
    } w, r;
    w.d = x;
    r.l[0] = bswap_32(w.l[1]);
    r.l[1] = bswap_32(w.l[0]);
    return r.d;
}