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/tests/mpz/t-addsub.c b/third_party/gmp/tests/mpz/t-addsub.c
new file mode 100644
index 0000000..aaa3188
--- /dev/null
+++ b/third_party/gmp/tests/mpz/t-addsub.c
@@ -0,0 +1,121 @@
+/* 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 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 <stdio.h>
+#include <stdlib.h>
+
+#include "gmp-impl.h"
+#include "longlong.h"
+#include "tests.h"
+
+void debug_mp (mpz_t, int);
+void dump_abort (int, const 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, const 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);
+}