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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.
180 lines
4.3 KiB
C
180 lines
4.3 KiB
C
/* Round long double value to long long int.
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Copyright (C) 1997 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include <math.h>
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#include "math_private.h"
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#ifdef NO_LONG_DOUBLE
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/* The `long double' is in fact the IEEE `double' type. */
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long long int
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__roundtoll (long double x)
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{
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int32_t j0;
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u_int32_t i1, i0;
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long long int result;
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EXTRACT_WORDS (i0, i1, x);
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j0 = ((i0 >> 20) & 0x7ff) - 0x3ff;
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if (j0 < 20)
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{
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if (j0 < 0)
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result = j0 < -1 ? 0 : ((i0 & 0x80000000) ? -1 : 1);
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else
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{
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u_int32_t i = 0xfffff >> j0;
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if (((i0 & i) | i1) == 0)
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result = (long long int) ((i0 & 0xfffff) | 0x100000) >> j0;
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else
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{
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/* X is not integral. */
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u_int32_t j = i0 + (0x80000 >> j0);
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if (j < i0)
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result = (long long int) 0x80000 >> (20 - j0);
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else
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result = (j | 0x100000) >> (20 - j0);
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}
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}
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}
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else if (j0 >= 8 * sizeof (long long int) || j0 > 51)
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{
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/* The number is too large. It is left implementation defined
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what happens. */
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result = (long long int) x;
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}
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else
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{
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u_int32_t i = ((u_int32_t) (0xffffffff)) >> (j0 - 20);
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if ((i1 & i) != 0)
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{
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/* x is not integral. */
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u_int32_t j = i1 + (0x80000000 >> (j0 - 20));
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if (j < i1)
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{
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j = i0 + 1;
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if ((j & 0xfffff) == 0)
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{
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if (sizeof (long long int) <= 4)
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/* Overflow. */
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result = (long long int) x;
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else
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result = 1ll << (j0 + 1);
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}
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else
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result = ((long long int) ((i0 & 0xfffff) | 0x100000)
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<< (j0 - 31));
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}
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else
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{
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result = ((long long int) ((i0 & 0xfffff) | 0x100000)
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<< (j0 - 31));
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if (sizeof (long long int) > 4 && j0 > 31)
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result |= j >> (63 - j0);
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}
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}
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else
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{
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result = (long long int) ((i0 & 0xfffff) | 0x100000) << (j0 - 31);
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if (sizeof (long long int) > 4 && j0 > 31)
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result |= i1 >> (63 - j0);
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}
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}
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return i0 & 0x80000000 ? -result : result;
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}
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#else
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long long int
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__roundtoll (long double x)
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{
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int32_t j0;
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u_int32_t se, i1, i0;
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long long int result;
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GET_LDOUBLE_WORDS (se, i0, i1, x);
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j0 = (se & 0x7fff) - 0x3fff;
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if (j0 < 31)
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{
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if (j0 < 0)
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result = j0 < -1 ? 0 : 1;
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else
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{
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u_int32_t i = 0x7fffffff >> j0;
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if (((i0 & i) | i1) == 0)
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result = (long long int) i0 >> j0;
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else
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{
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/* X is not integral. */
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u_int32_t j = i0 + (0x40000000 >> j0);
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if (j < i0)
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result = 0x80000000l >> (30 - j0);
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else
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result = j >> (31 - j0);
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}
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}
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}
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else if ((unsigned int) j0 >= 8 * sizeof (long long int) || j0 > 62)
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{
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/* The number is too large. It is left implementation defined
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what happens. */
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result = (long long int) x;
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}
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else
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{
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u_int32_t i = ((u_int32_t) (0xffffffff)) >> (j0 - 31);
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if ((i1 & i) != 0)
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{
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/* x is not integral. */
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u_int32_t j = i1 + (0x80000000 >> (j0 - 31));
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if (j < i1)
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{
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j = i0 + 1;
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if (j == 0)
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{
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if (sizeof (long long int) <= 4)
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/* Overflow. */
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result = (long long int) x;
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else
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result = 1ll << (j0 + 1);
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}
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else
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result = (long long int) i0 << (j0 - 31);
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}
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else
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{
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result = (long long int) i0 << (j0 - 31);
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if (sizeof (long long int) > 4 && j0 > 31)
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result |= j >> (63 - j0);
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}
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}
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else
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{
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result = (long long int) i0 << (j0 - 31);
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if (sizeof (long long int) > 4 && j0 > 31)
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result |= i1 >> (63 - j0);
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}
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}
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return se & 0x8000 ? -result : result;
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}
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#endif
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weak_alias (__roundtoll, roundtoll)
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