Imported gcc-4.4.3

[msp430-gcc.git] / gmp / mpq / set_ui.c

diff --git a/gmp/mpq/set_ui.c b/gmp/mpq/set_ui.c
new file mode 100644 (file)
index 0000000..8f0a9cd
--- /dev/null
+++ b/gmp/mpq/set_ui.c
@@ -0,0 +1,50 @@
+/* mpq_set_ui(dest,ulong_num,ulong_den) -- Set DEST to the rational number
+   ULONG_NUM/ULONG_DEN.
+
+Copyright 1991, 1994, 1995, 2001, 2002, 2003 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 Lesser General Public License as published by
+the Free Software Foundation; either version 3 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 Lesser General Public
+License for more details.
+
+You should have received a copy of the GNU Lesser General Public License
+along with the GNU MP Library.  If not, see http://www.gnu.org/licenses/.  */
+
+#include "gmp.h"
+#include "gmp-impl.h"
+
+void
+mpq_set_ui (MP_RAT *dest, unsigned long int num, unsigned long int den)
+{
+  if (GMP_NUMB_BITS < BITS_PER_ULONG)
+    {
+      if (num == 0)  /* Canonicalize 0/d to 0/1.  */
+        den = 1;
+      mpz_set_ui (mpq_numref (dest), num);
+      mpz_set_ui (mpq_denref (dest), den);
+      return;
+    }
+
+  if (num == 0)
+    {
+      /* Canonicalize 0/n to 0/1.  */
+      den = 1;
+      dest->_mp_num._mp_size = 0;
+    }
+  else
+    {
+      dest->_mp_num._mp_d[0] = num;
+      dest->_mp_num._mp_size = 1;
+    }
+
+  dest->_mp_den._mp_d[0] = den;
+  dest->_mp_den._mp_size = (den != 0);
+}