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      1 /* $NetBSD: unordtf2.c,v 1.2 2014/01/30 19:11:41 matt 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 #include <sys/cdefs.h>
     12 #if defined(LIBC_SCCS) && !defined(lint)
     13 __RCSID("$NetBSD: unordtf2.c,v 1.2 2014/01/30 19:11:41 matt Exp $");
     14 #endif /* LIBC_SCCS and not lint */
     15 
     16 #ifdef FLOAT128
     17 
     18 flag __unordtf2(float128, float128);
     19 
     20 flag
     21 __unordtf2(float128 a, float128 b)
     22 {
     23 	/*
     24 	 * The comparison is unordered if either input is a NaN.
     25 	 * Test for this by comparing each operand with itself.
     26 	 * We must perform both comparisons to correctly check for
     27 	 * signalling NaNs.
     28 	 */
     29 	return 1 ^ (float128_eq(a, a) & float128_eq(b, b));
     30 }
     31 
     32 #endif /* FLOAT128 */
     33