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authortege <tege@gmplib.org>1996-05-08 09:10:48 +0200
committertege <tege@gmplib.org>1996-05-08 09:10:48 +0200
commitc6d715868f53b08c62a129ffd77fb585fd89c43b (patch)
tree82f36d2d8cbe7e07ad3e18d5c6e047e8796d861e /mpq/set_den.c
downloadgmp-c6d715868f53b08c62a129ffd77fb585fd89c43b.tar.gz
Initial revision
Diffstat (limited to 'mpq/set_den.c')
-rw-r--r--mpq/set_den.c42
1 files changed, 42 insertions, 0 deletions
diff --git a/mpq/set_den.c b/mpq/set_den.c
new file mode 100644
index 000000000..4586c89f6
--- /dev/null
+++ b/mpq/set_den.c
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+/* mpq_set_den(dest,den) -- Set the denominator of DEST from DEN.
+
+Copyright (C) 1991, 1994, 1995, 1996 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 Library General Public License as published by
+the Free Software Foundation; either version 2 of the License, 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 Library General Public
+License for more details.
+
+You should have received a copy of the GNU Library General Public License
+along with the GNU MP Library; see the file COPYING.LIB. If not, write to
+the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+MA 02111-1307, USA. */
+
+#include "gmp.h"
+#include "gmp-impl.h"
+
+void
+#if __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_t size = den->_mp_size;
+ mp_size_t abs_size = ABS (size);
+
+ if (dest->_mp_den._mp_alloc < abs_size)
+ _mpz_realloc (&(dest->_mp_den), abs_size);
+
+ MPN_COPY (dest->_mp_den._mp_d, den->_mp_d, abs_size);
+ dest->_mp_den._mp_size = abs_size;
+}