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Make lround the alias of llround for wordsize-64
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H.J. Lu
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@ -1,3 +1,12 @@
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2012-03-16 H.J. Lu <hongjiu.lu@intel.com>
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* sysdeps/ieee754/dbl-64/wordsize-64/s_lround.c: Moved to ...
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* sysdeps/ieee754/dbl-64/wordsize-64/s_llround.c: This.
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(__lround): Renamed to ...
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(__llround): This. Replace long int with long long int.
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Define lround functions as aliases of llround functions.
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* sysdeps/ieee754/dbl-64/wordsize-64/s_lround.c: Empty file.
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2012-03-16 H.J. Lu <hongjiu.lu@intel.com>
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* sysdeps/unix/sysv/linux/x86_64/makecontext.c (__makecontext):
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@ -1 +1,79 @@
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/* The code is the same as lround. Use an alias, see l_round.c. */
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/* Round double value to long long int.
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Copyright (C) 1997-2012 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, see
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<http://www.gnu.org/licenses/>. */
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#define lround __hidden_lround
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#define __lround __hidden___lround
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#include <math.h>
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#include <math_private.h>
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long long int
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__llround (double x)
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{
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int32_t j0;
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int64_t i0;
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long long int result;
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int sign;
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EXTRACT_WORDS64 (i0, x);
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j0 = ((i0 >> 52) & 0x7ff) - 0x3ff;
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sign = i0 < 0 ? -1 : 1;
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i0 &= UINT64_C(0xfffffffffffff);
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i0 |= UINT64_C(0x10000000000000);
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if (j0 < (int32_t) (8 * sizeof (long long int)) - 1)
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{
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if (j0 < 0)
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return j0 < -1 ? 0 : sign;
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else if (j0 >= 52)
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result = i0 << (j0 - 52);
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else
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{
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i0 += UINT64_C(0x8000000000000) >> j0;
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result = i0 >> (52 - j0);
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}
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}
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else
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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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return (long long int) x;
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}
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return sign * result;
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}
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weak_alias (__llround, llround)
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#ifdef NO_LONG_DOUBLE
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strong_alias (__llround, __lroundl)
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weak_alias (__llround, lroundl)
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#endif
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/* long has the same width as long long on 64-bit machines. */
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#undef lround
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#undef __lround
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strong_alias (__llround, __lround)
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weak_alias (__llround, lround)
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#ifdef NO_LONG_DOUBLE
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strong_alias (__llround, __llroundl)
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weak_alias (__llround, llroundl)
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#endif
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@ -1,79 +1 @@
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/* Round double value to long int.
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Copyright (C) 1997, 2004, 2009 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, see
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<http://www.gnu.org/licenses/>. */
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#define llround __hidden_llround
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#define __llround __hidden___llround
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#include <math.h>
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#include <math_private.h>
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long int
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__lround (double x)
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{
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int32_t j0;
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int64_t i0;
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long int result;
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int sign;
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EXTRACT_WORDS64 (i0, x);
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j0 = ((i0 >> 52) & 0x7ff) - 0x3ff;
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sign = i0 < 0 ? -1 : 1;
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i0 &= UINT64_C(0xfffffffffffff);
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i0 |= UINT64_C(0x10000000000000);
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if (j0 < (int32_t) (8 * sizeof (long int)) - 1)
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{
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if (j0 < 0)
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return j0 < -1 ? 0 : sign;
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else if (j0 >= 52)
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result = i0 << (j0 - 52);
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else
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{
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i0 += UINT64_C(0x8000000000000) >> j0;
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result = i0 >> (52 - j0);
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}
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}
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else
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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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return (long int) x;
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}
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return sign * result;
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}
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weak_alias (__lround, lround)
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#ifdef NO_LONG_DOUBLE
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strong_alias (__lround, __lroundl)
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weak_alias (__lround, lroundl)
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#endif
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/* long long has the same width as long on 64-bit machines. */
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#undef llround
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#undef __llround
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strong_alias (__lround, __llround)
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weak_alias (__lround, llround)
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#ifdef NO_LONG_DOUBLE
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strong_alias (__lround, __llroundl)
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weak_alias (__lround, llroundl)
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#endif
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/* The code is the same as llround. Use an alias, see s_llround.c. */
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