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/mpq/t-equal.c b/third_party/gmp/tests/mpq/t-equal.c
new file mode 100644
index 0000000..671c530
--- /dev/null
+++ b/third_party/gmp/tests/mpq/t-equal.c
@@ -0,0 +1,146 @@
+/* Test mpq_equal.
+
+Copyright 2001 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 "tests.h"
+
+
+void
+check_one (mpq_srcptr x, mpq_srcptr y, int want)
+{
+ int got;
+
+ MPQ_CHECK_FORMAT (x);
+ MPQ_CHECK_FORMAT (y);
+
+ got = mpq_equal (x, y);
+ if ((got != 0) != (want != 0))
+ {
+ printf ("mpq_equal got %d want %d\n", got, want);
+ mpq_trace ("x", x);
+ mpq_trace ("y", y);
+ abort ();
+ }
+}
+
+
+void
+check_all (mpq_ptr x, mpq_ptr y, int want)
+{
+ check_one (x, y, want);
+ check_one (y, x, want);
+
+ mpq_neg (x, x);
+ mpq_neg (y, y);
+
+ check_one (x, y, want);
+ check_one (y, x, want);
+}
+
+
+#define SET4Z(z, size,l3,l2,l1,l0) \
+ SIZ(z) = size; PTR(z)[3] = l3; PTR(z)[2] = l2; PTR(z)[1] = l1; PTR(z)[0] = l0
+
+#define SET4(q, nsize,n3,n2,n1,n0, dsize,d3,d2,d1,d0) \
+ SET4Z (mpq_numref(q), nsize,n3,n2,n1,n0); \
+ SET4Z (mpq_denref(q), dsize,d3,d2,d1,d0)
+
+
+/* Exercise various combinations of same and slightly different values. */
+
+void
+check_various (void)
+{
+ mpq_t x, y;
+
+ mpq_init (x);
+ mpq_init (y);
+
+ mpz_realloc (mpq_numref(x), (mp_size_t) 20);
+ mpz_realloc (mpq_denref(x), (mp_size_t) 20);
+ mpz_realloc (mpq_numref(y), (mp_size_t) 20);
+ mpz_realloc (mpq_denref(y), (mp_size_t) 20);
+
+ /* 0 == 0 */
+ SET4 (x, 0,13,12,11,10, 1,23,22,21,1);
+ SET4 (y, 0,33,32,31,30, 1,43,42,41,1);
+ check_all (x, y, 1);
+
+ /* 83/99 == 83/99 */
+ SET4 (x, 1,13,12,11,83, 1,23,22,21,99);
+ SET4 (y, 1,33,32,31,83, 1,43,42,41,99);
+ check_all (x, y, 1);
+
+ /* 1:2:3:4/5:6:7 == 1:2:3:4/5:6:7 */
+ SET4 (x, 4,1,2,3,4, 3,88,5,6,7);
+ SET4 (y, 4,1,2,3,4, 3,99,5,6,7);
+ check_all (x, y, 1);
+
+ /* various individual changes making != */
+ SET4 (x, 4,1,2,3,667, 3,88,5,6,7);
+ SET4 (y, 4,1,2,3,4, 3,99,5,6,7);
+ check_all (x, y, 0);
+ SET4 (x, 4,1,2,666,4, 3,88,5,6,7);
+ SET4 (y, 4,1,2,3,4, 3,99,5,6,7);
+ check_all (x, y, 0);
+ SET4 (x, 4,1,666,3,4, 3,88,5,6,7);
+ SET4 (y, 4,1,2,3,4, 3,99,5,6,7);
+ check_all (x, y, 0);
+#if GMP_NUMB_BITS != 62
+ SET4 (x, 4,667,2,3,4, 3,88,5,6,7);
+ SET4 (y, 4,1,2,3,4, 3,99,5,6,7);
+ check_all (x, y, 0);
+#endif
+ SET4 (x, 4,1,2,3,4, 3,88,5,6,667);
+ SET4 (y, 4,1,2,3,4, 3,99,5,6,7);
+ check_all (x, y, 0);
+ SET4 (x, 4,1,2,3,4, 3,88,5,667,7);
+ SET4 (y, 4,1,2,3,4, 3,99,5,6,7);
+ check_all (x, y, 0);
+ SET4 (x, 4,1,2,3,4, 3,88,666,6,7);
+ SET4 (y, 4,1,2,3,4, 3,99,5,6,7);
+ check_all (x, y, 0);
+ SET4 (x, -4,1,2,3,4, 3,88,5,6,7);
+ SET4 (y, 4,1,2,3,4, 3,99,5,6,7);
+ check_all (x, y, 0);
+ SET4 (x, 1,1,2,3,4, 3,88,5,6,7);
+ SET4 (y, 4,1,2,3,4, 3,99,5,6,7);
+ check_all (x, y, 0);
+ SET4 (x, 4,1,2,3,4, 3,88,5,6,7);
+ SET4 (y, 4,1,2,3,4, 2,99,5,6,7);
+ check_all (x, y, 0);
+
+ mpq_clear (x);
+ mpq_clear (y);
+}
+
+
+int
+main (void)
+{
+ tests_start ();
+ mp_trace_base = -16;
+
+ check_various ();
+
+ tests_end ();
+ exit (0);
+}