int
sgl_to_sgl_fcnvfu(
			sgl_floating_point *srcptr,
			unsigned int *nullptr,
			unsigned int *dstptr,
			unsigned int *status)
int
sgl_to_sgl_fcnvfu(
			sgl_floating_point *srcptr,
			unsigned int *_nullptr,
			unsigned int *dstptr,
			unsigned int *status)