| 0,0 → 1,41 |
|---|
| /* Copyright (C) 1994 DJ Delorie, see COPYING.DJ for details */ |
| /* s_isnanf.c -- float version of s_isnan.c. |
| * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com. |
| */ |
| |
| /* |
| * ==================================================== |
| * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. |
| * |
| * Developed at SunPro, a Sun Microsystems, Inc. business. |
| * Permission to use, copy, modify, and distribute this |
| * software is freely granted, provided that this notice |
| * is preserved. |
| * ==================================================== |
| */ |
| |
| #if defined(LIBM_SCCS) && !defined(lint) |
| static char rcsid[] = "$Id: s_isnanf.c,v 1.2 1994/08/18 23:06:56 jtc Exp $"; |
| #endif |
| |
| /* |
| * isnanf(x) returns 1 is x is nan, else 0; |
| * no branching! |
| */ |
| |
| #include "math.h" |
| #include "math_private.h" |
| |
| #ifdef __STDC__ |
| int isnanf(float x) |
| #else |
| int isnanf(x) |
| float x; |
| #endif |
| { |
| int32_t ix; |
| GET_FLOAT_WORD(ix,x); |
| ix &= 0x7fffffff; |
| ix = 0x7f800000 - ix; |
| return (int)(((u_int32_t)(ix))>>31); |
| } |
| Property changes: |
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| Added: svn:executable |
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| +* |
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| \ No newline at end of property |
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