1 files changed, 53 insertions, 0 deletions
diff --git a/contrib/libgmp/mpq/canonicalize.c b/contrib/libgmp/mpq/canonicalize.c
new file mode 100644
index 0000000..901e6eb
--- /dev/null
+++ b/contrib/libgmp/mpq/canonicalize.c
@@ -0,0 +1,53 @@
+/* mpq_canonicalize(op) -- Remove common factors of the denominator and
+   numerator in OP.
+
+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_canonicalize (MP_RAT *op)
+#else
+mpq_canonicalize (op)
+     MP_RAT *op;
+#endif
+{
+  mpz_t gcd;
+  TMP_DECL (marker);
+
+  TMP_MARK (marker);
+
+  /* ??? Dunno if the 1+ is needed.  */
+  MPZ_TMP_INIT (gcd, 1 + MAX (ABS (op->_mp_num._mp_size),
+			      ABS (op->_mp_den._mp_size)));
+
+  mpz_gcd (gcd, &(op->_mp_num), &(op->_mp_den));
+  mpz_divexact (&(op->_mp_num), &(op->_mp_num), gcd);
+  mpz_divexact (&(op->_mp_den), &(op->_mp_den), gcd);
+
+  if (op->_mp_den._mp_size < 0)
+    {
+      op->_mp_num._mp_size = -op->_mp_num._mp_size;
+      op->_mp_den._mp_size = -op->_mp_den._mp_size;
+    }
+  TMP_FREE (marker);
+}