1 /* $NetBSD: unorddf2.c,v 1.1 2003/05/06 08:58:19 rearnsha Exp $ */ 2 3 /* 4 * Written by Richard Earnshaw, 2003. This file is in the Public Domain. 5 */ 6 7 #include "softfloat-for-gcc.h" 8 #include "milieu.h" 9 #include "softfloat.h" 10 11 flag __unorddf2(float64, float64); 12 13 flag 14 __unorddf2(float64 a, float64 b) 15 { 16 /* 17 * The comparison is unordered if either input is a NaN. 18 * Test for this by comparing each operand with itself. 19 * We must perform both comparisons to correctly check for 20 * signalling NaNs. 21 */ 22 return 1 ^ (float64_eq(a, a) & float64_eq(b, b)); 23 } 24