"Fossies" - the Fresh Open Source Software Archive

Member "gmp-6.2.1/mpq/abs.c" (14 Nov 2020, 1544 Bytes) of package /linux/misc/gmp-6.2.1.tar.xz:


As a special service "Fossies" has tried to format the requested source page into HTML format using (guessed) C and C++ source code syntax highlighting (style: standard) with prefixed line numbers and code folding option. Alternatively you can here view or download the uninterpreted source code file. For more information about "abs.c" see the Fossies "Dox" file reference documentation and the last Fossies "Diffs" side-by-side code changes report: 6.1.2_vs_6.2.0.

    1 /* mpq_abs -- absolute value of a rational.
    2 
    3 Copyright 2000, 2001, 2012 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 either:
    9 
   10   * the GNU Lesser General Public License as published by the Free
   11     Software Foundation; either version 3 of the License, or (at your
   12     option) any later version.
   13 
   14 or
   15 
   16   * the GNU General Public License as published by the Free Software
   17     Foundation; either version 2 of the License, or (at your option) any
   18     later version.
   19 
   20 or both in parallel, as here.
   21 
   22 The GNU MP Library is distributed in the hope that it will be useful, but
   23 WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
   24 or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
   25 for more details.
   26 
   27 You should have received copies of the GNU General Public License and the
   28 GNU Lesser General Public License along with the GNU MP Library.  If not,
   29 see https://www.gnu.org/licenses/.  */
   30 
   31 #define __GMP_FORCE_mpq_abs 1
   32 
   33 #include "gmp-impl.h"
   34 
   35 
   36 void
   37 mpq_abs (mpq_ptr dst, mpq_srcptr src)
   38 {
   39   mp_size_t  num_abs_size = ABSIZ(NUM(src));
   40 
   41   if (dst != src)
   42     {
   43       mp_size_t  den_size = SIZ(DEN(src));
   44       mp_ptr dp;
   45 
   46       dp = MPZ_NEWALLOC (NUM(dst), num_abs_size);
   47       MPN_COPY (dp, PTR(NUM(src)), num_abs_size);
   48 
   49       dp = MPZ_NEWALLOC (DEN(dst), den_size);
   50       SIZ(DEN(dst)) = den_size;
   51       MPN_COPY (dp, PTR(DEN(src)), den_size);
   52     }
   53 
   54   SIZ(NUM(dst)) = num_abs_size;
   55 }