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f83af095b6
* include/math.h: Declare __isinf_internal, __isinfl_internal, __isnan_internal, and __isnanl_internal. * stdio-common/printf_fp.c: Use INTUSE for calls to __isinf, __isinfl, __isnan, and __isnanl. * stdio-common/printf_size.c: Likewise. * sysdeps/generic/printf_fphex.c: Likewise. * sysdeps/i386/fpu/s_isinfl.c: Also define _internal alias. * sysdeps/i386/fpu/s_isnanl.c: Likewise. * sysdeps/ia64/fpu/s_isinf.S: Likewise. * sysdeps/ia64/fpu/s_isnan.S: Likewise. * sysdeps/ieee754/dbl-64/s_isinf.c: Likewise. * sysdeps/ieee754/dbl-64/s_isnan.c: Likewise. * sysdeps/ieee754/flt-32/s_isinff.c: Likewise. * sysdeps/ieee754/flt-32/s_isnanf.c: Likewise. * sysdeps/ieee754/ldbl-128/s_isinfl.c: Likewise. * sysdeps/ieee754/ldbl-128/s_isnanl.c: Likewise. * sysdeps/ieee754/ldbl-96/s_isinfl.c: Likewise. * sysdeps/m68k/s_isinfl.c: Likewise. * sysdeps/m68k/fpu/s_isinf.c: Likewise. * sysdeps/powerpc/fpu/s_isnan.c: Likewise.
43 lines
997 B
C
43 lines
997 B
C
/* s_isnanf.c -- float version of s_isnan.c.
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* Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com.
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*/
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/*
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* ====================================================
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* Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
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*
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* Developed at SunPro, a Sun Microsystems, Inc. business.
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* Permission to use, copy, modify, and distribute this
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* software is freely granted, provided that this notice
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* is preserved.
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* ====================================================
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*/
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#if defined(LIBM_SCCS) && !defined(lint)
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static char rcsid[] = "$NetBSD: s_isnanf.c,v 1.4 1995/05/10 20:47:38 jtc Exp $";
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#endif
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/*
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* isnanf(x) returns 1 is x is nan, else 0;
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* no branching!
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*/
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#include "math.h"
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#include "math_private.h"
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#ifdef __STDC__
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int __isnanf(float x)
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#else
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int __isnanf(x)
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float x;
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#endif
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{
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int32_t ix;
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GET_FLOAT_WORD(ix,x);
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ix &= 0x7fffffff;
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ix = 0x7f800000 - ix;
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return (int)(((u_int32_t)(ix))>>31);
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}
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INTDEF(__isnanf)
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weak_alias (__isnanf, isnanf)
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