Imported gcc-4.4.3

[msp430-gcc.git] / gmp / tests / mpz / t-gcd_ui.c

diff --git a/gmp/tests/mpz/t-gcd_ui.c b/gmp/tests/mpz/t-gcd_ui.c
new file mode 100644 (file)
index 0000000..ac6431c
--- /dev/null
+++ b/gmp/tests/mpz/t-gcd_ui.c
@@ -0,0 +1,63 @@
+/* Test mpz_gcd_ui.
+
+Copyright 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 <stdio.h>
+#include <stdlib.h>
+
+#include "gmp.h"
+#include "gmp-impl.h"
+#include "tests.h"
+
+/* Check mpz_gcd_ui doesn't try to return a value out of range.
+   This was wrong in gmp 4.1.2 with a long long limb.  */
+static void
+check_ui_range (void)
+{
+  unsigned long  got;
+  mpz_t  x;
+  int  i;
+
+  mpz_init_set_ui (x, ULONG_MAX);
+
+  for (i = 0; i < 20; i++)
+    {
+      mpz_mul_2exp (x, x, 1L);
+      got = mpz_gcd_ui (NULL, x, 0L);
+      if (got != 0)
+        {
+          printf ("mpz_gcd_ui (ULONG_MAX*2^%d, 0)\n", i);
+          printf ("   return %#lx\n", got);
+          printf ("   should be 0\n");
+          abort ();
+        }
+    }
+
+  mpz_clear (x);
+}
+
+int
+main (void)
+{
+  tests_start ();
+
+  check_ui_range ();
+
+  tests_end ();
+  exit (0);
+}