7799b7b335
1997-04-15 03:14 Ulrich Drepper <drepper@cygnus.com> * wcsmbs/wcsstr.c: Add weak alias wcswcs for Unix98 compliance. * math/Makefile (libm-calls): Add s_sincos and s_cproj. * math/mathcalls.h: Add prototype for sincos. * sysdeps/i386/fpu/__math.h: Warn about restriction on arguments to inlined sin and cos function. Define functions new in ISO C 9X when __USE_ISOC9X is defined. Add optimized version of finite. Rewrite sincos function to handle too large arguments. * sysdeps/libm-i387/s_cos.S: Better code alignment. * sysdeps/libm-i387/s_cosl.S: Likewise. * sysdeps/libm-i387/s_sin.S: Likewise. * sysdeps/libm-i387/s_sinl.S: Likewise. * sysdeps/libm-i387/s_finite.S: Yet better code. * sysdeps/libm-i387/s_finitef.S: Likewise. * sysdeps/libm-i387/s_sincos.S: New file. * sysdeps/libm-i387/s_sincosf.S: New file. * sysdeps/libm-i387/s_sincosl.S: New file. * sysdeps/libm-ieee754/s_sincos.c: New file. * sysdeps/libm-ieee754/s_sincosf.c: New file. * sysdeps/libm-ieee754/s_sincosl.c: New file. * sysdeps/libm-ieee754/s_ccosh.c: Change to use sincos function. * sysdeps/libm-ieee754/s_ccoshf.c: Likewise. * sysdeps/libm-ieee754/s_ccoshl.c: Likewise. * sysdeps/libm-ieee754/s_cexp.c: Likewise. * sysdeps/libm-ieee754/s_cexpf.c: Likewise. * sysdeps/libm-ieee754/s_cexpl.c: Likewise. * sysdeps/libm-ieee754/s_csinh.c: Likewise. * sysdeps/libm-ieee754/s_csinhf.c: Likewise. * sysdeps/libm-ieee754/s_csinhl.c: Likewise. * sysdeps/libm-ieee754/s_ctan.c: Likewise. * sysdeps/libm-ieee754/s_ctanf.c: Likewise. * sysdeps/libm-ieee754/s_ctanl.c: Likewise. * sysdeps/libm-ieee754/s_ctanh.c: Likewise. * sysdeps/libm-ieee754/s_ctanhf.c: Likewise. * sysdeps/libm-ieee754/s_ctanhl.c: Likewise. * sysdeps/libm-ieee754/s_cosl.c: Correct check for range. * sysdeps/libm-ieee754/s_sinl.c: Likewise. * sysdeps/libm-ieee754/s_roundtol.c: Fix typos. * sysdeps/libm-ieee754/s_roundtoll.c: Likewise. * nis/Makefile (services): Mention nisplus before compat. * nis/nis_call.c (__do_niscall): Change type of variable server_len to prevent warning. * nis/nss_compat/compat-grp.c (getgrent_next_file_plusgroup): Add cast to prevent warning. * nis/nss_compat/compat-pwd.c (getpwent_next_file_plususer): Likewise. * nis/nss_compat/compat-spwd.c (getspent_next_file_plususer): Likewise. * nis/nss_nisplus/nisplus-hosts.c (_nss_nisplus_parse_hostent): Change type of variable `i' to prevent warning. * nis/nss_nisplus/nisplus-network.c (_nss_nisplus_parse_netent): Likewise. * nis/nss_nisplus/nisplus-proto.c (_nss_nisplus_parse_protoent): Likewise. * nis/nss_nisplus/nisplus-rpc.c (_nss_nisplus_parse_rpcent): Likewise. * nis/nss_nisplus/nisplus-service.c (_nss_nisplus_parse_servent): Likewise. * sysdeps/generic/Dist: Remove old math implementation files. * sysdeps/generic/mathimpl.h: Removed. * sysdeps/generic/trig.h: Removed. * sysdeps/generic/sincos.c: Removed. * sysdeps/generic/asincos.c: Removed. * sysdeps/generic/exp__E.c: Removed. * sysdeps/generic/log__L.c: Removed. 1997-04-13 17:18 Wolfram Gloger <wmglo@dent.med.uni-muenchen.de> * malloc/malloc.c (fREe): Small optimization. Before returning, add fast check whether the heap containing top can go away. 1997-04-11 16:46 Wolfram Gloger <wmglo@dent.med.uni-muenchen.de> * malloc/malloc.c (mALLOc, rEALLOc, cALLOc, mEMALIGn): When failing to allocate a new chunk, also try the main_arena. It may be that we are only running out of mmapped regions, and other arenas cannot be enlarged sufficiently. (new_heap, malloc_extend_top): Handle top_pad more consistently, i.e. only in new_heap(). 1997-04-13 21:10 Philip Blundell <pjb27@cl.cam.ac.uk> * sysdeps/posix/Makefile: Don't try to build and run mk-stdiolim if cross-compiling. * configure.in: Recognise "...linuxaout" OS names and turn off ELF. * configure.in: Add ARM support. * sysdeps/arm/Implies: New file. * sysdeps/arm/__longjmp.S: New file. * sysdeps/arm/bsd-_setjmp: New file. * sysdeps/arm/bsd-setjmp: New file. * sysdeps/arm/bytesex.h: New file. * sysdeps/arm/fpu_control.h: New file. * sysdeps/arm/jmp_buf.h: New file. * sysdeps/arm/setjmp.h: New file. * sysdeps/arm/sysdep.h: New file. * sysdeps/unix/arm/config.h: New file. 1997-04-14 04:03 Ulrich Drepper <drepper@cygnus.com> * sysdeps/libm-ieee754/s_cproj.c: New file. * sysdeps/libm-ieee754/s_cprojf.c: New file. * sysdeps/libm-ieee754/s_cprojl.c: New file.
89 lines
2.2 KiB
C
89 lines
2.2 KiB
C
/* s_sinl.c -- long double version of s_sin.c.
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* Conversion to long double by Ulrich Drepper,
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* Cygnus Support, drepper@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: $";
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#endif
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/* sinl(x)
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* Return sine function of x.
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*
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* kernel function:
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* __kernel_sinl ... sine function on [-pi/4,pi/4]
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* __kernel_cosl ... cose function on [-pi/4,pi/4]
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* __ieee754_rem_pio2l ... argument reduction routine
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*
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* Method.
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* Let S,C and T denote the sin, cos and tan respectively on
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* [-PI/4, +PI/4]. Reduce the argument x to y1+y2 = x-k*pi/2
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* in [-pi/4 , +pi/4], and let n = k mod 4.
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* We have
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*
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* n sin(x) cos(x) tan(x)
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* ----------------------------------------------------------
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* 0 S C T
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* 1 C -S -1/T
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* 2 -S -C T
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* 3 -C S -1/T
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* ----------------------------------------------------------
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*
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* Special cases:
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* Let trig be any of sin, cos, or tan.
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* trig(+-INF) is NaN, with signals;
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* trig(NaN) is that NaN;
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*
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* Accuracy:
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* TRIG(x) returns trig(x) nearly rounded
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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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long double __sinl(long double x)
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#else
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long double __sinl(x)
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long double x;
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#endif
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{
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long double y[2],z=0.0;
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int32_t n, se, i0, i1;
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/* High word of x. */
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GET_LDOUBLE_WORDS(se,i0,i1,x);
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/* |x| ~< pi/4 */
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se &= 0x7fff;
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if(se < 0x3ffe || (se == 0x3ffe && i0 <= 0xc90fdaa2))
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return __kernel_sinl(x,z,0);
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/* sin(Inf or NaN) is NaN */
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else if (se==0x7fff) return x-x;
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/* argument reduction needed */
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else {
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n = __ieee754_rem_pio2l(x,y);
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switch(n&3) {
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case 0: return __kernel_sinl(y[0],y[1],1);
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case 1: return __kernel_cosl(y[0],y[1]);
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case 2: return -__kernel_sinl(y[0],y[1],1);
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default:
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return -__kernel_cosl(y[0],y[1]);
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}
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}
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}
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weak_alias (__sinl, sinl)
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