Add libgmp 6.2.0 to third_party
Don't build it yet. That will come in the next review.
Change-Id: Idf3266558165e5ab45f4a41c98cc8c838c8244d5
diff --git a/third_party/gmp/mini-gmp/tests/t-sub.c b/third_party/gmp/mini-gmp/tests/t-sub.c
new file mode 100644
index 0000000..e230fda
--- /dev/null
+++ b/third_party/gmp/mini-gmp/tests/t-sub.c
@@ -0,0 +1,71 @@
+/*
+
+Copyright 2012, 2013 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library test suite.
+
+The GNU MP Library test suite is free software; you can redistribute it
+and/or modify it under the terms of the GNU 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 test suite 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 a copy of the GNU General Public License along with
+the GNU MP Library test suite. If not, see https://www.gnu.org/licenses/. */
+
+#include <stdlib.h>
+#include <stdio.h>
+
+#include "testutils.h"
+
+#define MAXBITS 400
+#define COUNT 10000
+
+void
+testmain (int argc, char **argv)
+{
+ unsigned i;
+ mpz_t a, b, res, res_ui, ref;
+
+ mpz_init (a);
+ mpz_init (b);
+ mpz_init (res);
+ mpz_init (res_ui);
+ mpz_init (ref);
+
+ for (i = 0; i < COUNT; i++)
+ {
+ mini_random_op3 (OP_SUB, MAXBITS, a, b, ref);
+ mpz_sub (res, a, b);
+ if (mpz_cmp (res, ref))
+ {
+ fprintf (stderr, "mpz_sub failed:\n");
+ dump ("a", a);
+ dump ("b", b);
+ dump ("r", res);
+ dump ("ref", ref);
+ abort ();
+ }
+ if (mpz_fits_ulong_p (a)) {
+ mpz_ui_sub (res_ui, mpz_get_ui (a), b);
+ if (mpz_cmp (res_ui, ref))
+ {
+ fprintf (stderr, "mpz_ui_sub failed:\n");
+ dump ("a", a);
+ dump ("b", b);
+ dump ("r", res_ui);
+ dump ("ref", ref);
+ abort ();
+ }
+ }
+ }
+ mpz_clear (a);
+ mpz_clear (b);
+ mpz_clear (res);
+ mpz_clear (res_ui);
+ mpz_clear (ref);
+}