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