Function get_float8_nan

src/include/utils/float.h:121–132

}

static inline float8
get_float8_nan(void)
{
	/* (float8) NAN doesn't work on some NetBSD/MIPS releases */
#if defined(NAN) && !(defined(__NetBSD__) && defined(__mips__))
	/* C99 standard way */
	return (float8) NAN;
#else
	/* Assume we can get a NaN via zero divide */
	return (float8) (0.0 / 0.0);
#endif
}

/*
 * Floating-point arithmetic with overflow/underflow reported as errors