1 files changed, 61 insertions, 0 deletions
diff --git a/gmp-6.3.0/mpq/canonicalize.c b/gmp-6.3.0/mpq/canonicalize.c
new file mode 100644
index 0000000..7ac2331
--- /dev/null
+++ b/gmp-6.3.0/mpq/canonicalize.c
@@ -0,0 +1,61 @@
+/* mpq_canonicalize(op) -- Remove common factors of the denominator and
+   numerator in OP.
+
+Copyright 1991, 1994-1996, 2000, 2001, 2005, 2014 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 either:
+
+  * the GNU Lesser General Public License as published by the Free
+    Software Foundation; either version 3 of the License, or (at your
+    option) any later version.
+
+or
+
+  * the GNU General Public License as published by the Free Software
+    Foundation; either version 2 of the License, or (at your option) any
+    later version.
+
+or both in parallel, as here.
+
+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 copies of the GNU General Public License and the
+GNU Lesser General Public License along with the GNU MP Library.  If not,
+see https://www.gnu.org/licenses/.  */
+
+#include "gmp-impl.h"
+
+void
+mpq_canonicalize (mpq_ptr op)
+{
+  mpz_t gcd;
+  TMP_DECL;
+
+  if (SIZ(DEN(op)) < 0)
+    {
+      SIZ(NUM(op)) = -SIZ(NUM(op));
+      SIZ(DEN(op)) = -SIZ(DEN(op));
+    }
+  else if (UNLIKELY (SIZ(DEN(op)) == 0))
+    DIVIDE_BY_ZERO;
+
+  TMP_MARK;
+
+  /* ??? Dunno if the 1+ is needed.  */
+  MPZ_TMP_INIT (gcd, 1 + MAX (ABSIZ(NUM(op)),
+			      SIZ(DEN(op))));
+
+  mpz_gcd (gcd, NUM(op), DEN(op));
+  if (! MPZ_EQUAL_1_P (gcd))
+    {
+      mpz_divexact_gcd (NUM(op), NUM(op), gcd);
+      mpz_divexact_gcd (DEN(op), DEN(op), gcd);
+    }
+  TMP_FREE;
+}