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Annotation of OpenXM_contrib/gmp/mpq/abs.c, Revision 1.1.1.1

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: }