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701666b77d
void **. * nss/nsswitch.h (service_user): Use void * type for KNOWN field. * nss/nss_files/files-hosts.c (LINE_PARSER): Cast host_addr to char * to avoid warning. * nis/nss_nis/nis-hosts.c (LINE_PARSER): Likewise. * timezone/Makefile (CFLAGS-zdump.c): Add -fwrapv. * locale/programs/ld-ctype.c (ctype_finish, set_class_defaults, allocate_arrays): Cast second argument to charmap_find_symbol to char * to avoid warnings. * locale/programs/repertoire.c (repertoire_new_char): Change from_nr, to_nr and cnt to unsigned long, adjust printf format string. * locale/programs/ld-collate.c (insert_value, handle_ellipsis): Cast second argument to new_element to char * to avoid warnings. * locale/weightwc.h (findidx): Cast &extra[-i] to const int32_t *. * intl/gettextP.h (struct loaded_domain): Change plural to const struct expression *. * intl/plural-eval.c (plural_eval): Change first argument to const struct expression *. * intl/plural-exp.c (EXTRACT_PLURAL_EXPRESSION): Change first argument to const struct expression **. * intl/plural-exp.h (EXTRACT_PLURAL_EXPRESSION, plural_eval): Adjust prototypes. * intl/loadmsgcat (_nl_unload_domain): Cast away const in call to __gettext_free_exp. * posix/fnmatch.c (fnmatch): Rearrange code to avoid maybe unitialized wstring/wpattern var warnings. * posix/runtests.c (struct a_test): Make data field const char *. * stdio-common/tst-sprintf2.c (main): Don't declere u, v and buf vars if not LDBL_MANT_DIG >= 106. * stdio-common/Makefile (CFLAGS-vfwprintf.c): Add -Wno-unitialized. * stdio-common/vfprintf.c (vfprintf): Cast first arugment to __find_specmb to avoid warning. * rt/tst-mqueue1.c (do_one_test): Add casts to avoid warnings. * debug/test-strcpy_chk.c (do_tests, do_random_tests): Add casts to avoid warnings. * sysdeps/ieee754/ldbl-96/s_roundl.c (huge): Add L suffix to initializer. * sysdeps/unix/clock_gettime.c (clock_gettime): Only define tv var when it will be actually used. * sunrpc/rpc_cmsg.c (xdr_callmsg): Cast IXDR_PUT_* to void to avoid warnings.
107 lines
2.3 KiB
C
107 lines
2.3 KiB
C
/* Round long double to integer away from zero.
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Copyright (C) 1997, 2007 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 Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the 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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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include <math.h>
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#include "math_private.h"
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static const long double huge = 1.0e4930L;
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long double
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__roundl (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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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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{
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if (huge + x > 0.0)
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{
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se &= 0x8000;
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i0 = i1 = 0;
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if (j0 == -1)
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{
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se |= 0x3fff;
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i0 = 0x80000000;
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}
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}
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}
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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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/* X is integral. */
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return x;
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if (huge + x > 0.0)
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{
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/* Raise inexact if x != 0. */
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u_int32_t j = i0 + (0x40000000 >> j0);
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if (j < i0)
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se += 1;
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i0 = (j & ~i) | 0x80000000;
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i1 = 0;
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}
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}
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}
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else if (j0 > 62)
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{
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if (j0 == 0x4000)
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/* Inf or NaN. */
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return x + x;
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else
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return x;
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}
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else
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{
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u_int32_t i = 0xffffffff >> (j0 - 31);
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if ((i1 & i) == 0)
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/* X is integral. */
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return x;
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if (huge + x > 0.0)
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{
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/* Raise inexact if x != 0. */
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u_int32_t j = i1 + (1 << (62 - j0));
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if (j < i1)
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{
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u_int32_t k = i0 + 1;
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if (k < i0)
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{
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se += 1;
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k |= 0x80000000;
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}
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i0 = k;
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}
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i1 = j;
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}
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i1 &= ~i;
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}
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SET_LDOUBLE_WORDS (x, se, i0, i1);
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return x;
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}
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weak_alias (__roundl, roundl)
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