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* Makeconfig ($(common-objpfx)config.make): Depend on config.h.in. Mon Mar 4 17:35:09 1996 Roland McGrath <roland@charlie-brown.gnu.ai.mit.edu> * hurd/catch-signal.c (hurd_safe_memmove): New function. (hurd_safe_copyin, hurd_safe_copyout): New functions. * hurd/hurd/sigpreempt.h: Declare them. Sun Mar 3 08:43:44 1996 Roland McGrath <roland@charlie-brown.gnu.ai.mit.edu> Replace math code with fdlibm from Sun as modified for netbsd by JT Conklin and Ian Taylor, including x86 FPU support. * sysdeps/libm-ieee754, sysdeps/libm-i387: New directories. * math/math_private.h: New file. * sysdeps/i386/fpu/Implies: New file. * sysdeps/ieee754/Implies: New file. * math/machine/asm.h, math/machine/endian.h: New files. * math/Makefile, math/math.h: Rewritten. * mathcalls.h, math/mathcalls.h: New file, broken out of math.h. * math/finite.c: File removed. * sysdeps/generic/Makefile [$(subdir)=math]: Frobnication removed. * math/test-math.c: Include errno.h and string.h. * sysdeps/unix/bsd/dirstream.h: File removed. * sysdeps/unix/bsd/readdir.c: File removed.
63 lines
1.5 KiB
C
63 lines
1.5 KiB
C
/* s_ceilf.c -- float version of s_ceil.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_ceilf.c,v 1.4 1995/05/10 20:46:55 jtc Exp $";
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#endif
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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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static const float huge = 1.0e30;
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#else
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static float huge = 1.0e30;
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#endif
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#ifdef __STDC__
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float __ceilf(float x)
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#else
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float __ceilf(x)
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float x;
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#endif
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{
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int32_t i0,j0;
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u_int32_t i;
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GET_FLOAT_WORD(i0,x);
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j0 = ((i0>>23)&0xff)-0x7f;
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if(j0<23) {
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if(j0<0) { /* raise inexact if x != 0 */
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if(huge+x>(float)0.0) {/* return 0*sign(x) if |x|<1 */
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if(i0<0) {i0=0x80000000;}
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else if(i0!=0) { i0=0x3f800000;}
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}
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} else {
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i = (0x007fffff)>>j0;
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if((i0&i)==0) return x; /* x is integral */
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if(huge+x>(float)0.0) { /* raise inexact flag */
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if(i0>0) i0 += (0x00800000)>>j0;
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i0 &= (~i);
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}
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}
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} else {
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if(j0==0x80) return x+x; /* inf or NaN */
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else return x; /* x is integral */
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}
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SET_FLOAT_WORD(x,i0);
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return x;
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}
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weak_alias (__ceilf, ceilf)
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