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Annotation of OpenXM_contrib/gmp/mpq/abs.c, Revision 1.1

1.1     ! ohara       1: /* mpq_abs -- absolute value of a rational.
        !             2:
        !             3: Copyright 2000, 2001 Free Software Foundation, Inc.
        !             4:
        !             5: This file is part of the GNU MP Library.
        !             6:
        !             7: The GNU MP Library is free software; you can redistribute it and/or modify
        !             8: it under the terms of the GNU Lesser General Public License as published by
        !             9: the Free Software Foundation; either version 2.1 of the License, or (at your
        !            10: option) any later version.
        !            11:
        !            12: The GNU MP Library is distributed in the hope that it will be useful, but
        !            13: WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
        !            14: or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
        !            15: License for more details.
        !            16:
        !            17: You should have received a copy of the GNU Lesser General Public License
        !            18: along with the GNU MP Library; see the file COPYING.LIB.  If not, write to
        !            19: the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
        !            20: MA 02111-1307, USA. */
        !            21:
        !            22: #define __GMP_FORCE_mpq_abs 1
        !            23:
        !            24: #include "gmp.h"
        !            25: #include "gmp-impl.h"
        !            26:
        !            27:
        !            28: void
        !            29: mpq_abs (mpq_ptr dst, mpq_srcptr src)
        !            30: {
        !            31:   mp_size_t  num_size = src->_mp_num._mp_size;
        !            32:   mp_size_t  num_abs_size = ABS (num_size);
        !            33:
        !            34:   if (dst != src)
        !            35:     {
        !            36:       mp_size_t  den_size = src->_mp_den._mp_size;
        !            37:
        !            38:       MPZ_REALLOC (mpq_numref(dst), num_abs_size);
        !            39:       MPZ_REALLOC (mpq_denref(dst), den_size);
        !            40:
        !            41:       MPN_COPY (dst->_mp_num._mp_d, src->_mp_num._mp_d, num_abs_size);
        !            42:       MPN_COPY (dst->_mp_den._mp_d, src->_mp_den._mp_d, den_size);
        !            43:
        !            44:       dst->_mp_den._mp_size = den_size;
        !            45:     }
        !            46:
        !            47:   dst->_mp_num._mp_size = num_abs_size;
        !            48: }