Imported gcc-4.4.3

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

diff --git a/gmp/tests/mpz/t-addsub.c b/gmp/tests/mpz/t-addsub.c
new file mode 100644 (file)
index 0000000..815a839
--- /dev/null
+++ b/gmp/tests/mpz/t-addsub.c
@@ -0,0 +1,122 @@
+/* Test mpz_add, mpz_sub, mpz_add_ui, mpz_sub_ui, and mpz_ui_sub.
+
+Copyright 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 <stdio.h>
+#include <stdlib.h>
+
+#include "gmp.h"
+#include "gmp-impl.h"
+#include "longlong.h"
+#include "tests.h"
+
+void debug_mp __GMP_PROTO ((mpz_t, int));
+void dump_abort __GMP_PROTO ((int, char *, mpz_t, mpz_t));
+
+int
+main (int argc, char **argv)
+{
+  mpz_t op1, op2, r1, r2;
+  mp_size_t op1n, op2n;
+  unsigned long int op2long;
+  int i;
+  int reps = 100000;
+  gmp_randstate_ptr rands;
+  mpz_t bs;
+  unsigned long bsi, size_range;
+
+  tests_start ();
+  rands = RANDS;
+
+  mpz_init (bs);
+
+  if (argc == 2)
+     reps = atoi (argv[1]);
+
+  mpz_init (op1);
+  mpz_init (op2);
+  mpz_init (r1);
+  mpz_init (r2);
+
+  for (i = 0; i < reps; i++)
+    {
+      mpz_urandomb (bs, rands, 32);
+      size_range = mpz_get_ui (bs) % 10 + 2;
+
+      mpz_urandomb (bs, rands, size_range);
+      op1n = mpz_get_ui (bs);
+      mpz_rrandomb (op1, rands, op1n);
+
+      mpz_urandomb (bs, rands, size_range);
+      op2n = mpz_get_ui (bs);
+      mpz_rrandomb (op2, rands, op2n);
+
+      mpz_urandomb (bs, rands, 2);
+      bsi = mpz_get_ui (bs);
+      if ((bsi & 1) != 0)
+       mpz_neg (op1, op1);
+      if ((bsi & 2) != 0)
+       mpz_neg (op2, op2);
+
+      /* printf ("%ld %ld\n", SIZ (multiplier), SIZ (multiplicand)); */
+
+      mpz_add (r1, op1, op2);
+      mpz_sub (r2, r1, op2);
+      if (mpz_cmp (r2, op1) != 0)
+       dump_abort (i, "mpz_add or mpz_sub incorrect", op1, op2);
+
+      if (mpz_fits_ulong_p (op2))
+       {
+         op2long = mpz_get_ui (op2);
+         mpz_add_ui (r1, op1, op2long);
+         mpz_sub_ui (r2, r1, op2long);
+         if (mpz_cmp (r2, op1) != 0)
+           dump_abort (i, "mpz_add_ui or mpz_sub_ui incorrect", op1, op2);
+
+         mpz_ui_sub (r1, op2long, op1);
+         mpz_sub_ui (r2, op1, op2long);
+         mpz_neg (r2, r2);
+         if (mpz_cmp (r1, r2) != 0)
+           dump_abort (i, "mpz_add_ui or mpz_ui_sub incorrect", op1, op2);
+       }
+    }
+
+  mpz_clear (bs);
+  mpz_clear (op1);
+  mpz_clear (op2);
+  mpz_clear (r1);
+  mpz_clear (r2);
+
+  tests_end ();
+  exit (0);
+}
+
+void
+dump_abort (int i, char *s, mpz_t op1, mpz_t op2)
+{
+  fprintf (stderr, "ERROR: %s in test %d\n", s, i);
+  fprintf (stderr, "op1 = "); debug_mp (op1, -16);
+  fprintf (stderr, "op2 = "); debug_mp (op2, -16);
+  abort();
+}
+
+void
+debug_mp (mpz_t x, int base)
+{
+  mpz_out_str (stderr, base, x); fputc ('\n', stderr);
+}