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author | markm <markm@FreeBSD.org> | 1995-11-12 14:40:41 +0000 |
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committer | markm <markm@FreeBSD.org> | 1995-11-12 14:40:41 +0000 |
commit | d938bb78837327b46dc34873a6eb60c002605808 (patch) | |
tree | d720c213b0c2f268c17d14276e809e876bd37dc8 /gnu/lib/libgmp/mpq_set_den.c | |
parent | 7e662b2efdf7b11bed05bdd944746d7b7d0e56af (diff) | |
download | FreeBSD-src-d938bb78837327b46dc34873a6eb60c002605808.zip FreeBSD-src-d938bb78837327b46dc34873a6eb60c002605808.tar.gz |
GNU MP (Multiprecision) library. This is needed by secure RPC (being
done by Bill Paul) and various other BSD programs.
Obtained from:FSF
Diffstat (limited to 'gnu/lib/libgmp/mpq_set_den.c')
-rw-r--r-- | gnu/lib/libgmp/mpq_set_den.c | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/gnu/lib/libgmp/mpq_set_den.c b/gnu/lib/libgmp/mpq_set_den.c new file mode 100644 index 0000000..d532f1a --- /dev/null +++ b/gnu/lib/libgmp/mpq_set_den.c @@ -0,0 +1,46 @@ +/* mpq_set_den(dest,den) -- Set the denominator of DEST from DEN. + If DEN < 0 change the sign of the numerator of DEST. + +Copyright (C) 1991 Free Software Foundation, Inc. + +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 General Public License as published by +the Free Software Foundation; either version 2, 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 General Public License for more details. + +You should have received a copy of the GNU General Public License +along with the GNU MP Library; see the file COPYING. If not, write to +the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ + +#include "gmp.h" +#include "gmp-impl.h" + +void +#ifdef __STDC__ +mpq_set_den (MP_RAT *dest, const MP_INT *den) +#else +mpq_set_den (dest, den) + MP_RAT *dest; + const MP_INT *den; +#endif +{ + mp_size size = den->size; + mp_size abs_size = ABS (size); + + if (dest->den.alloc < abs_size) + _mpz_realloc (&(dest->den), abs_size); + + MPN_COPY (dest->den.d, den->d, abs_size); + dest->den.size = abs_size; + + /* The denominator is always positive; move the sign to the numerator. */ + if (size < 0) + dest->num.size = -dest->num.size; +} |