gcc/libquadmath/printf/cmp.c

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re PR fortran/47642 (real(kind=16) - libquadmath - segfault on amd64 FreeBSD) PR fortran/47642 * libquadmath.texi (quadmath_snprintf): Document. (quadmath_flt128tostr): Remove. * Makefile.am (libquadmath_la_SOURCES): Add printf/*.c. Remove quadmath_io.c, gdtoa/gdtoa.c, gdtoa/g__fmt.c, gdtoa/g_Qfmt.c, gdtoa/dmisc.c and gdtoa/ulp.c. * quadmath.h (quadmath_snprintf): New prototype. (quadmath_flt128tostr): Remove. * quadmath_weak.h (quadmath_snprintf): Add. (quadmath_flt128tostr): Remove. * configure.ac: New AC_CHECK_HEADERS headers: langinfo.h, wchar.h, wctype.h, limits.h, ctype.h, printf.h, errno.h. (AC_USE_SYSTEM_EXTENSIONS): Add. (HAVE_HIDDEN_VISIBILITY, HAVE_PRINTF_HOOKS, USE_LOCALE_SUPPORT, USE_I18N_NUMBER_H): New checks. * quadmath.map (QUADMATH_1.0): Add quadmath_snprintf. Remove quadmath_flt128tostr. * printf/printf_fphex.c: New file. * printf/_itowa.h: New file. * printf/mul_n.c: New file. * printf/quadmath-printf.h: New file. * printf/submul_1.c: New file. * printf/quadmath-printf.c: New file. * printf/gmp-impl.h: New file. * printf/lshift.c: New file. * printf/fpioconst.h: New file. * printf/add_n.c: New file. * printf/cmp.c: New file. * printf/sub_n.c: New file. * printf/mul.c: New file. * printf/divrem.c: New file. * printf/addmul_1.c: New file. * printf/printf_fp.c: New file. * printf/_itoa.h: New file. * printf/fpioconst.c: New file. * printf/_i18n_number.h: New file. * printf/flt1282mpn.c: New file. * printf/rshift.c: New file. * printf/mul_1.c: New file. * quadmath_io.c: Removed. * gdtoa/gdtoa.c: Removed. * gdtoa/g__fmt.c: Removed. * gdtoa/g_Qfmt.c: Removed. * gdtoa/dmisc.c: Removed. * gdtoa/ulp.c: Removed. * config.h.in: Regenerated. * configure: Regenerated. * Makefile.in: Regenerated. * io/write_float.def (DTOAQ): Use quadmath_snprintf instead of quadmath_flt128tostr. * io/transfer128.c (tmp2): Initialize to quadmath_snprintf instead of quadmath_flt128tostr. From-SVN: r170135
2011-02-14 16:34:44 +01:00
/* mpn_cmp -- Compare two low-level natural-number integers.
Copyright (C) 1991, 1993, 1994, 1996 Free Software Foundation, Inc.
re PR fortran/47642 (real(kind=16) - libquadmath - segfault on amd64 FreeBSD) PR fortran/47642 * libquadmath.texi (quadmath_snprintf): Document. (quadmath_flt128tostr): Remove. * Makefile.am (libquadmath_la_SOURCES): Add printf/*.c. Remove quadmath_io.c, gdtoa/gdtoa.c, gdtoa/g__fmt.c, gdtoa/g_Qfmt.c, gdtoa/dmisc.c and gdtoa/ulp.c. * quadmath.h (quadmath_snprintf): New prototype. (quadmath_flt128tostr): Remove. * quadmath_weak.h (quadmath_snprintf): Add. (quadmath_flt128tostr): Remove. * configure.ac: New AC_CHECK_HEADERS headers: langinfo.h, wchar.h, wctype.h, limits.h, ctype.h, printf.h, errno.h. (AC_USE_SYSTEM_EXTENSIONS): Add. (HAVE_HIDDEN_VISIBILITY, HAVE_PRINTF_HOOKS, USE_LOCALE_SUPPORT, USE_I18N_NUMBER_H): New checks. * quadmath.map (QUADMATH_1.0): Add quadmath_snprintf. Remove quadmath_flt128tostr. * printf/printf_fphex.c: New file. * printf/_itowa.h: New file. * printf/mul_n.c: New file. * printf/quadmath-printf.h: New file. * printf/submul_1.c: New file. * printf/quadmath-printf.c: New file. * printf/gmp-impl.h: New file. * printf/lshift.c: New file. * printf/fpioconst.h: New file. * printf/add_n.c: New file. * printf/cmp.c: New file. * printf/sub_n.c: New file. * printf/mul.c: New file. * printf/divrem.c: New file. * printf/addmul_1.c: New file. * printf/printf_fp.c: New file. * printf/_itoa.h: New file. * printf/fpioconst.c: New file. * printf/_i18n_number.h: New file. * printf/flt1282mpn.c: New file. * printf/rshift.c: New file. * printf/mul_1.c: New file. * quadmath_io.c: Removed. * gdtoa/gdtoa.c: Removed. * gdtoa/g__fmt.c: Removed. * gdtoa/g_Qfmt.c: Removed. * gdtoa/dmisc.c: Removed. * gdtoa/ulp.c: Removed. * config.h.in: Regenerated. * configure: Regenerated. * Makefile.in: Regenerated. * io/write_float.def (DTOAQ): Use quadmath_snprintf instead of quadmath_flt128tostr. * io/transfer128.c (tmp2): Initialize to quadmath_snprintf instead of quadmath_flt128tostr. From-SVN: r170135
2011-02-14 16:34:44 +01:00
This file is part of the GNU MP Library.
The GNU MP Library is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or (at your
option) any later version.
The GNU MP Library is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
License for more details.
You should have received a copy of the GNU Lesser General Public License
along with the GNU MP Library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
MA 02111-1307, USA. */
libquadmath.texi (FLT128_DIG, [...]): Document. * libquadmath.texi (FLT128_DIG, FLT128_MIN_10_EXP, FLT128_MAX_10_EXP): Document. (strtoflt128): Remove obsolete comment. * configure.ac (HAVE_STRTOULL): New check. * printf/gmp-impl.h (mpn_construct_float128): New prototype, define. * printf/mul_n.c: Include <config.h>. * printf/add_n.c: Likewise. * printf/cmp.c: Likewise. * printf/fpioconst.c: Likewise. * printf/mul_1.c: Likewise. * printf/rshift.c: Likewise. * printf/lshift.c: Likewise. * printf/submul_1.c: Likewise. * printf/sub_n.c: Likewise. * printf/divrem.c: Likewise. * printf/addmul_1.c: Likewise. * printf/mul.c: Likewise. * printf/quadmath-printf.h (isupper, isdigit, tolower): Change to avoid evaluating argument multiple times. (isxdigit): Redefine. * strtod/strtoflt128.c: New file. * strtod/strtod_l.c: New file. * strtod/mpn2flt128.c: New file. * strtod/grouping.h: New file. * strtod/tens_in_limb.c: New file. * gdtoa/arith.h: Removed. * gdtoa/gd_qnan.h: Removed. * gdtoa/gdtoa_fltrnds.h: Removed. * gdtoa/gdtoa.h: Removed. * gdtoa/gdtoaimp.h: Removed. * gdtoa/gethex.c: Removed. * gdtoa/gmisc.c: Removed. * gdtoa/hd_init.c: Removed. * gdtoa/hexnan.c: Removed. * gdtoa/makefile: Removed. * gdtoa/misc.c: Removed. * gdtoa/README.gdtoa: Removed. * gdtoa/smisc.c: Removed. * gdtoa/strtodg.c: Removed. * gdtoa/strtopQ.c: Removed. * gdtoa/sum.c: Removed. * quadmath.h (FLT128_DIG, FLT128_MIN_10_EXP, FLT128_MAX_10_EXP): Define. * Makefile.am (libquadmath_la_SOURCES): Remove gdtoa/*, add strtod/strtoflt128.c, strtod/mpn2flt128.c and strtod/tens_in_limb.c. * config.h.in: Regenerated. * configure: Regenerated. * Makefile.in: Regenerated. From-SVN: r170254
2011-02-17 20:57:18 +01:00
#include <config.h>
re PR fortran/47642 (real(kind=16) - libquadmath - segfault on amd64 FreeBSD) PR fortran/47642 * libquadmath.texi (quadmath_snprintf): Document. (quadmath_flt128tostr): Remove. * Makefile.am (libquadmath_la_SOURCES): Add printf/*.c. Remove quadmath_io.c, gdtoa/gdtoa.c, gdtoa/g__fmt.c, gdtoa/g_Qfmt.c, gdtoa/dmisc.c and gdtoa/ulp.c. * quadmath.h (quadmath_snprintf): New prototype. (quadmath_flt128tostr): Remove. * quadmath_weak.h (quadmath_snprintf): Add. (quadmath_flt128tostr): Remove. * configure.ac: New AC_CHECK_HEADERS headers: langinfo.h, wchar.h, wctype.h, limits.h, ctype.h, printf.h, errno.h. (AC_USE_SYSTEM_EXTENSIONS): Add. (HAVE_HIDDEN_VISIBILITY, HAVE_PRINTF_HOOKS, USE_LOCALE_SUPPORT, USE_I18N_NUMBER_H): New checks. * quadmath.map (QUADMATH_1.0): Add quadmath_snprintf. Remove quadmath_flt128tostr. * printf/printf_fphex.c: New file. * printf/_itowa.h: New file. * printf/mul_n.c: New file. * printf/quadmath-printf.h: New file. * printf/submul_1.c: New file. * printf/quadmath-printf.c: New file. * printf/gmp-impl.h: New file. * printf/lshift.c: New file. * printf/fpioconst.h: New file. * printf/add_n.c: New file. * printf/cmp.c: New file. * printf/sub_n.c: New file. * printf/mul.c: New file. * printf/divrem.c: New file. * printf/addmul_1.c: New file. * printf/printf_fp.c: New file. * printf/_itoa.h: New file. * printf/fpioconst.c: New file. * printf/_i18n_number.h: New file. * printf/flt1282mpn.c: New file. * printf/rshift.c: New file. * printf/mul_1.c: New file. * quadmath_io.c: Removed. * gdtoa/gdtoa.c: Removed. * gdtoa/g__fmt.c: Removed. * gdtoa/g_Qfmt.c: Removed. * gdtoa/dmisc.c: Removed. * gdtoa/ulp.c: Removed. * config.h.in: Regenerated. * configure: Regenerated. * Makefile.in: Regenerated. * io/write_float.def (DTOAQ): Use quadmath_snprintf instead of quadmath_flt128tostr. * io/transfer128.c (tmp2): Initialize to quadmath_snprintf instead of quadmath_flt128tostr. From-SVN: r170135
2011-02-14 16:34:44 +01:00
#include "gmp-impl.h"
/* Compare OP1_PTR/OP1_SIZE with OP2_PTR/OP2_SIZE.
There are no restrictions on the relative sizes of
the two arguments.
Return 1 if OP1 > OP2, 0 if they are equal, and -1 if OP1 < OP2. */
int
#if __STDC__
mpn_cmp (mp_srcptr op1_ptr, mp_srcptr op2_ptr, mp_size_t size)
#else
mpn_cmp (op1_ptr, op2_ptr, size)
mp_srcptr op1_ptr;
mp_srcptr op2_ptr;
mp_size_t size;
#endif
{
mp_size_t i;
mp_limb_t op1_word, op2_word;
for (i = size - 1; i >= 0; i--)
{
op1_word = op1_ptr[i];
op2_word = op2_ptr[i];
if (op1_word != op2_word)
goto diff;
}
return 0;
diff:
/* This can *not* be simplified to
op2_word - op2_word
since that expression might give signed overflow. */
return (op1_word > op2_word) ? 1 : -1;
}