Imported gcc-4.4.3

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

diff --git a/gmp/mpq/equal.c b/gmp/mpq/equal.c
new file mode 100644 (file)
index 0000000..e5c5f8e
--- /dev/null
+++ b/gmp/mpq/equal.c
@@ -0,0 +1,58 @@
+/* mpq_equal(u,v) -- Compare U, V.  Return non-zero if they are equal, zero
+   if they are non-equal.
+
+Copyright 1996, 2001, 2002 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"
+
+int
+mpq_equal (mpq_srcptr op1, mpq_srcptr op2)
+{
+  mp_size_t  num1_size, num2_size, den1_size, den2_size, i;
+  mp_srcptr  num1_ptr,  num2_ptr,  den1_ptr,  den2_ptr;
+
+  /* need fully canonical for correct results */
+  ASSERT_MPQ_CANONICAL (op1);
+  ASSERT_MPQ_CANONICAL (op2);
+
+  num1_size = op1->_mp_num._mp_size;
+  num2_size = op2->_mp_num._mp_size;
+  if (num1_size != num2_size)
+    return 0;
+
+  num1_ptr = op1->_mp_num._mp_d;
+  num2_ptr = op2->_mp_num._mp_d;
+  num1_size = ABS (num1_size);
+  for (i = 0; i < num1_size; i++)
+    if (num1_ptr[i] != num2_ptr[i])
+      return 0;
+
+  den1_size = op1->_mp_den._mp_size;
+  den2_size = op2->_mp_den._mp_size;
+  if (den1_size != den2_size)
+    return 0;
+
+  den1_ptr = op1->_mp_den._mp_d;
+  den2_ptr = op2->_mp_den._mp_d;
+  for (i = 0; i < den1_size; i++)
+    if (den1_ptr[i] != den2_ptr[i])
+      return 0;
+
+  return 1;
+}