/* Finished 32 bit sample to unsigned 32 bit sample. */
#define CONV_SU32(s) \
( (s >= 0) \
    ?   ((uint32_t)s + (uint32_t)2147483648UL) \
    :   ((s == (int32_t)-2147483648UL) \
        ?   0 /* Separate because negation would overflow. */  \
        :   (uint32_t)2147483648UL - (uint32_t)(-s) ) \
)