Revert "Remove gmp from AOS"
This reverts commit f37c97684f0910a3f241394549392f00145ab0f7.
We need gmp for SymEngine for symbolicmanipultion in C++
Change-Id: Ia13216d1715cf96944f7b4f422b7a799f921d4a4
Signed-off-by: Austin Schuh <austin.linux@gmail.com>
diff --git a/third_party/gmp/mini-gmp/tests/t-reuse.c b/third_party/gmp/mini-gmp/tests/t-reuse.c
new file mode 100644
index 0000000..5ac9e11
--- /dev/null
+++ b/third_party/gmp/mini-gmp/tests/t-reuse.c
@@ -0,0 +1,663 @@
+/* Test that routines allow reusing a source variable as destination.
+
+Copyright 1996, 1999-2002, 2009, 2012 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 <string.h>
+
+#include "testutils.h"
+
+#define COUNT 100
+
+void dump3 (const char *, mpz_t, mpz_t, mpz_t);
+void mpz_check_format (const mpz_t);
+
+typedef void (*dss_func) (mpz_t, const mpz_t, const mpz_t);
+typedef void (*dsi_func) (mpz_t, const mpz_t, unsigned long int);
+typedef unsigned long int (*dsi_div_func) (mpz_t, const mpz_t, unsigned long int);
+typedef unsigned long int (*ddsi_div_func) (mpz_t, mpz_t, const mpz_t, unsigned long int);
+typedef void (*ddss_div_func) (mpz_t, mpz_t, const mpz_t, const mpz_t);
+typedef void (*ds_func) (mpz_t, const mpz_t);
+
+
+void
+mpz_xinvert (mpz_t r, const mpz_t a, const mpz_t b)
+{
+ int res;
+ res = mpz_invert (r, a, b);
+ if (res == 0)
+ mpz_set_ui (r, 0);
+}
+
+dss_func dss_funcs[] =
+{
+ mpz_add, mpz_sub, mpz_mul,
+ mpz_cdiv_q, mpz_cdiv_r, mpz_fdiv_q, mpz_fdiv_r, mpz_tdiv_q, mpz_tdiv_r,
+ mpz_xinvert,
+ mpz_gcd, mpz_lcm, mpz_and, mpz_ior, mpz_xor
+};
+const char *dss_func_names[] =
+{
+ "mpz_add", "mpz_sub", "mpz_mul",
+ "mpz_cdiv_q", "mpz_cdiv_r", "mpz_fdiv_q", "mpz_fdiv_r", "mpz_tdiv_q", "mpz_tdiv_r",
+ "mpz_xinvert",
+ "mpz_gcd", "mpz_lcm", "mpz_and", "mpz_ior", "mpz_xor"
+};
+char dss_func_division[] = {0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0};
+
+dsi_func dsi_funcs[] =
+{
+ /* Don't change order here without changing the code in main(). */
+ mpz_add_ui, mpz_mul_ui, mpz_sub_ui,
+ mpz_fdiv_q_2exp, mpz_fdiv_r_2exp,
+ mpz_cdiv_q_2exp, mpz_cdiv_r_2exp,
+ mpz_tdiv_q_2exp, mpz_tdiv_r_2exp,
+ mpz_mul_2exp,
+ mpz_pow_ui
+};
+const char *dsi_func_names[] =
+{
+ "mpz_add_ui", "mpz_mul_ui", "mpz_sub_ui",
+ "mpz_fdiv_q_2exp", "mpz_fdiv_r_2exp",
+ "mpz_cdiv_q_2exp", "mpz_cdiv_r_2exp",
+ "mpz_tdiv_q_2exp", "mpz_tdiv_r_2exp",
+ "mpz_mul_2exp",
+ "mpz_pow_ui"
+};
+
+dsi_div_func dsi_div_funcs[] =
+{
+ mpz_cdiv_q_ui, mpz_cdiv_r_ui,
+ mpz_fdiv_q_ui, mpz_fdiv_r_ui,
+ mpz_tdiv_q_ui, mpz_tdiv_r_ui
+};
+const char *dsi_div_func_names[] =
+{
+ "mpz_cdiv_q_ui", "mpz_cdiv_r_ui",
+ "mpz_fdiv_q_ui", "mpz_fdiv_r_ui",
+ "mpz_tdiv_q_ui", "mpz_tdiv_r_ui"
+};
+
+ddsi_div_func ddsi_div_funcs[] =
+{
+ mpz_cdiv_qr_ui,
+ mpz_fdiv_qr_ui,
+ mpz_tdiv_qr_ui
+};
+const char *ddsi_div_func_names[] =
+{
+ "mpz_cdiv_qr_ui",
+ "mpz_fdiv_qr_ui",
+ "mpz_tdiv_qr_ui"
+};
+
+ddss_div_func ddss_div_funcs[] =
+{
+ mpz_cdiv_qr,
+ mpz_fdiv_qr,
+ mpz_tdiv_qr
+};
+const char *ddss_div_func_names[] =
+{
+ "mpz_cdiv_qr",
+ "mpz_fdiv_qr",
+ "mpz_tdiv_qr"
+};
+
+ds_func ds_funcs[] =
+{
+ mpz_abs, mpz_com, mpz_neg, mpz_sqrt
+};
+const char *ds_func_names[] =
+{
+ "mpz_abs", "mpz_com", "mpz_neg", "mpz_sqrt"
+};
+
+
+#define FAIL(class,indx,op1,op2,op3) \
+ do { \
+ class##_funcs[indx] = 0; \
+ dump3 (class##_func_names[indx], op1, op2, op3); \
+ failures++; \
+ } while (0)
+#define FAIL2(fname,op1,op2,op3) \
+ do { \
+ dump3 (#fname, op1, op2, op3); \
+ failures++; \
+ } while (0)
+
+void
+testmain (int argc, char **argv)
+{
+ unsigned i;
+ int pass, reps = COUNT;
+ mpz_t in1, in2, in3;
+ unsigned long int in2i;
+ mp_size_t size;
+ mpz_t res1, res2, res3;
+ mpz_t ref1, ref2, ref3;
+ mpz_t t;
+ unsigned long int r1, r2;
+ long failures = 0;
+ mpz_t bs;
+ unsigned long bsi, size_range;
+
+ mpz_init (bs);
+
+ mpz_init (in1);
+ mpz_init (in2);
+ mpz_init (in3);
+ mpz_init (ref1);
+ mpz_init (ref2);
+ mpz_init (ref3);
+ mpz_init (res1);
+ mpz_init (res2);
+ mpz_init (res3);
+ mpz_init (t);
+
+ for (pass = 1; pass <= reps; pass++)
+ {
+ mini_urandomb (bs, 32);
+ size_range = mpz_get_ui (bs) % 12 + 2;
+
+ mini_urandomb (bs, size_range);
+ size = mpz_get_ui (bs);
+ mini_rrandomb (in1, size);
+
+ mini_urandomb (bs, size_range);
+ size = mpz_get_ui (bs);
+ mini_rrandomb (in2, size);
+
+ mini_urandomb (bs, size_range);
+ size = mpz_get_ui (bs);
+ mini_rrandomb (in3, size);
+
+ mini_urandomb (bs, 3);
+ bsi = mpz_get_ui (bs);
+ if ((bsi & 1) != 0)
+ mpz_neg (in1, in1);
+ if ((bsi & 2) != 0)
+ mpz_neg (in2, in2);
+ if ((bsi & 4) != 0)
+ mpz_neg (in3, in3);
+
+ for (i = 0; i < sizeof (dss_funcs) / sizeof (dss_func); i++)
+ {
+ if (dss_funcs[i] == 0)
+ continue;
+ if (dss_func_division[i] && mpz_sgn (in2) == 0)
+ continue;
+
+ (dss_funcs[i]) (ref1, in1, in2);
+ mpz_check_format (ref1);
+
+ mpz_set (res1, in1);
+ (dss_funcs[i]) (res1, res1, in2);
+ mpz_check_format (res1);
+ if (mpz_cmp (ref1, res1) != 0)
+ FAIL (dss, i, in1, in2, NULL);
+
+ mpz_set (res1, in2);
+ (dss_funcs[i]) (res1, in1, res1);
+ mpz_check_format (res1);
+ if (mpz_cmp (ref1, res1) != 0)
+ FAIL (dss, i, in1, in2, NULL);
+ }
+
+ for (i = 0; i < sizeof (ddss_div_funcs) / sizeof (ddss_div_func); i++)
+ {
+ if (ddss_div_funcs[i] == 0)
+ continue;
+ if (mpz_sgn (in2) == 0)
+ continue;
+
+ (ddss_div_funcs[i]) (ref1, ref2, in1, in2);
+ mpz_check_format (ref1);
+ mpz_check_format (ref2);
+
+ mpz_set (res1, in1);
+ (ddss_div_funcs[i]) (res1, res2, res1, in2);
+ mpz_check_format (res1);
+ mpz_check_format (res2);
+ if (mpz_cmp (ref1, res1) != 0 || mpz_cmp (ref2, res2) != 0)
+ FAIL (ddss_div, i, in1, in2, NULL);
+
+ mpz_set (res2, in1);
+ (ddss_div_funcs[i]) (res1, res2, res2, in2);
+ mpz_check_format (res1);
+ mpz_check_format (res2);
+ if (mpz_cmp (ref1, res1) != 0 || mpz_cmp (ref2, res2) != 0)
+ FAIL (ddss_div, i, in1, in2, NULL);
+
+ mpz_set (res1, in2);
+ (ddss_div_funcs[i]) (res1, res2, in1, res1);
+ mpz_check_format (res1);
+ mpz_check_format (res2);
+ if (mpz_cmp (ref1, res1) != 0 || mpz_cmp (ref2, res2) != 0)
+ FAIL (ddss_div, i, in1, in2, NULL);
+
+ mpz_set (res2, in2);
+ (ddss_div_funcs[i]) (res1, res2, in1, res2);
+ mpz_check_format (res1);
+ mpz_check_format (res2);
+ if (mpz_cmp (ref1, res1) != 0 || mpz_cmp (ref2, res2) != 0)
+ FAIL (ddss_div, i, in1, in2, NULL);
+ }
+
+ for (i = 0; i < sizeof (ds_funcs) / sizeof (ds_func); i++)
+ {
+ if (ds_funcs[i] == 0)
+ continue;
+ if (strcmp (ds_func_names[i], "mpz_sqrt") == 0
+ && mpz_sgn (in1) < 0)
+ continue;
+
+ (ds_funcs[i]) (ref1, in1);
+ mpz_check_format (ref1);
+
+ mpz_set (res1, in1);
+ (ds_funcs[i]) (res1, res1);
+ mpz_check_format (res1);
+ if (mpz_cmp (ref1, res1) != 0)
+ FAIL (ds, i, in1, in2, NULL);
+ }
+
+ in2i = mpz_get_ui (in2);
+
+ for (i = 0; i < sizeof (dsi_funcs) / sizeof (dsi_func); i++)
+ {
+ if (dsi_funcs[i] == 0)
+ continue;
+ if (strcmp (dsi_func_names[i], "mpz_fdiv_q_2exp") == 0)
+ /* Limit exponent to something reasonable for the division
+ functions. Without this, we'd normally shift things off
+ the end and just generate the trivial values 1, 0, -1. */
+ in2i %= 0x1000;
+ if (strcmp (dsi_func_names[i], "mpz_mul_2exp") == 0)
+ /* Limit exponent more for mpz_mul_2exp to save time. */
+ in2i %= 0x100;
+ if (strcmp (dsi_func_names[i], "mpz_pow_ui") == 0)
+ /* Limit exponent yet more for mpz_pow_ui to save time. */
+ in2i %= 0x10;
+
+ (dsi_funcs[i]) (ref1, in1, in2i);
+ mpz_check_format (ref1);
+
+ mpz_set (res1, in1);
+ (dsi_funcs[i]) (res1, res1, in2i);
+ mpz_check_format (res1);
+ if (mpz_cmp (ref1, res1) != 0)
+ FAIL (dsi, i, in1, in2, NULL);
+ }
+
+ if (in2i != 0) /* Don't divide by 0. */
+ {
+ for (i = 0; i < sizeof (dsi_div_funcs) / sizeof (dsi_div_funcs); i++)
+ {
+ r1 = (dsi_div_funcs[i]) (ref1, in1, in2i);
+ mpz_check_format (ref1);
+
+ mpz_set (res1, in1);
+ r2 = (dsi_div_funcs[i]) (res1, res1, in2i);
+ mpz_check_format (res1);
+ if (mpz_cmp (ref1, res1) != 0 || r1 != r2)
+ FAIL (dsi_div, i, in1, in2, NULL);
+ }
+
+ for (i = 0; i < sizeof (ddsi_div_funcs) / sizeof (ddsi_div_funcs); i++)
+ {
+ r1 = (ddsi_div_funcs[i]) (ref1, ref2, in1, in2i);
+ mpz_check_format (ref1);
+
+ mpz_set (res1, in1);
+ r2 = (ddsi_div_funcs[i]) (res1, res2, res1, in2i);
+ mpz_check_format (res1);
+ if (mpz_cmp (ref1, res1) != 0 || mpz_cmp (ref2, res2) != 0 || r1 != r2)
+ FAIL (ddsi_div, i, in1, in2, NULL);
+
+ mpz_set (res2, in1);
+ (ddsi_div_funcs[i]) (res1, res2, res2, in2i);
+ mpz_check_format (res1);
+ if (mpz_cmp (ref1, res1) != 0 || mpz_cmp (ref2, res2) != 0 || r1 != r2)
+ FAIL (ddsi_div, i, in1, in2, NULL);
+ }
+ }
+
+ if (mpz_sgn (in1) >= 0)
+ {
+ mpz_sqrtrem (ref1, ref2, in1);
+ mpz_check_format (ref1);
+ mpz_check_format (ref2);
+
+ mpz_set (res1, in1);
+ mpz_sqrtrem (res1, res2, res1);
+ mpz_check_format (res1);
+ mpz_check_format (res2);
+ if (mpz_cmp (ref1, res1) != 0 || mpz_cmp (ref2, res2) != 0)
+ FAIL2 (mpz_sqrtrem, in1, NULL, NULL);
+
+ mpz_set (res2, in1);
+ mpz_sqrtrem (res1, res2, res2);
+ mpz_check_format (res1);
+ mpz_check_format (res2);
+ if (mpz_cmp (ref1, res1) != 0 || mpz_cmp (ref2, res2) != 0)
+ FAIL2 (mpz_sqrtrem, in1, NULL, NULL);
+ }
+
+ if (mpz_sgn (in1) >= 0)
+ {
+ mpz_root (ref1, in1, in2i % 0x1000 + 1);
+ mpz_check_format (ref1);
+
+ mpz_set (res1, in1);
+ mpz_root (res1, res1, in2i % 0x1000 + 1);
+ mpz_check_format (res1);
+ if (mpz_cmp (ref1, res1) != 0)
+ FAIL2 (mpz_root, in1, in2, NULL);
+ }
+
+ if (mpz_sgn (in1) >= 0)
+ {
+ mpz_rootrem (ref1, ref2, in1, in2i % 0x1000 + 1);
+ mpz_check_format (ref1);
+ mpz_check_format (ref2);
+
+ mpz_set (res1, in1);
+ mpz_rootrem (res1, res2, res1, in2i % 0x1000 + 1);
+ mpz_check_format (res1);
+ mpz_check_format (res2);
+ if (mpz_cmp (ref1, res1) != 0 || mpz_cmp (ref2, res2) != 0)
+ FAIL2 (mpz_rootrem, in1, in2, NULL);
+
+ mpz_set (res2, in1);
+ mpz_rootrem (res1, res2, res2, in2i % 0x1000 + 1);
+ mpz_check_format (res1);
+ mpz_check_format (res2);
+ if (mpz_cmp (ref1, res1) != 0 || mpz_cmp (ref2, res2) != 0)
+ FAIL2 (mpz_rootrem, in1, in2, NULL);
+ }
+
+ if (pass < reps / 2) /* run fewer tests since gcdext lots of time */
+ {
+ mpz_gcdext (ref1, ref2, ref3, in1, in2);
+ mpz_check_format (ref1);
+ mpz_check_format (ref2);
+ mpz_check_format (ref3);
+
+ mpz_set (res1, in1);
+ mpz_gcdext (res1, res2, res3, res1, in2);
+ mpz_check_format (res1);
+ mpz_check_format (res2);
+ mpz_check_format (res3);
+ if (mpz_cmp (ref1, res1) != 0 || mpz_cmp (ref2, res2) != 0
+ || mpz_cmp (ref3, res3) != 0)
+ FAIL2 (mpz_gcdext, in1, in2, NULL);
+
+ mpz_set (res2, in1);
+ mpz_gcdext (res1, res2, res3, res2, in2);
+ mpz_check_format (res1);
+ mpz_check_format (res2);
+ mpz_check_format (res3);
+ if (mpz_cmp (ref1, res1) != 0 || mpz_cmp (ref2, res2) != 0
+ || mpz_cmp (ref3, res3) != 0)
+ FAIL2 (mpz_gcdext, in1, in2, NULL);
+
+ mpz_set (res3, in1);
+ mpz_gcdext (res1, res2, res3, res3, in2);
+ mpz_check_format (res1);
+ mpz_check_format (res2);
+ mpz_check_format (res3);
+ if (mpz_cmp (ref1, res1) != 0 || mpz_cmp (ref2, res2) != 0
+ || mpz_cmp (ref3, res3) != 0)
+ FAIL2 (mpz_gcdext, in1, in2, NULL);
+
+ mpz_set (res1, in2);
+ mpz_gcdext (res1, res2, res3, in1, res1);
+ mpz_check_format (res1);
+ mpz_check_format (res2);
+ mpz_check_format (res3);
+ if (mpz_cmp (ref1, res1) != 0 || mpz_cmp (ref2, res2) != 0
+ || mpz_cmp (ref3, res3) != 0)
+ FAIL2 (mpz_gcdext, in1, in2, NULL);
+
+ mpz_set (res2, in2);
+ mpz_gcdext (res1, res2, res3, in1, res2);
+ mpz_check_format (res1);
+ mpz_check_format (res2);
+ mpz_check_format (res3);
+ if (mpz_cmp (ref1, res1) != 0 || mpz_cmp (ref2, res2) != 0
+ || mpz_cmp (ref3, res3) != 0)
+ FAIL2 (mpz_gcdext, in1, in2, NULL);
+
+ mpz_set (res3, in2);
+ mpz_gcdext (res1, res2, res3, in1, res3);
+ mpz_check_format (res1);
+ mpz_check_format (res2);
+ mpz_check_format (res3);
+ if (mpz_cmp (ref1, res1) != 0 || mpz_cmp (ref2, res2) != 0
+ || mpz_cmp (ref3, res3) != 0)
+ FAIL2 (mpz_gcdext, in1, in2, NULL);
+
+ mpz_set (res1, in1);
+ mpz_gcdext (res1, res2, NULL, res1, in2);
+ mpz_check_format (res1);
+ mpz_check_format (res2);
+ if (mpz_cmp (ref1, res1) != 0 || mpz_cmp (ref2, res2) != 0
+ || mpz_cmp (ref3, res3) != 0)
+ FAIL2 (mpz_gcdext, in1, in2, NULL);
+
+ mpz_set (res2, in1);
+ mpz_gcdext (res1, res2, NULL, res2, in2);
+ mpz_check_format (res1);
+ mpz_check_format (res2);
+ if (mpz_cmp (ref1, res1) != 0 || mpz_cmp (ref2, res2) != 0
+ || mpz_cmp (ref3, res3) != 0)
+ FAIL2 (mpz_gcdext, in1, in2, NULL);
+
+ mpz_set (res1, in2);
+ mpz_gcdext (res1, res2, NULL, in1, res1);
+ mpz_check_format (res1);
+ mpz_check_format (res2);
+ if (mpz_cmp (ref1, res1) != 0 || mpz_cmp (ref2, res2) != 0
+ || mpz_cmp (ref3, res3) != 0)
+ FAIL2 (mpz_gcdext, in1, in2, NULL);
+
+ mpz_set (res2, in2);
+ mpz_gcdext (res1, res2, NULL, in1, res2);
+ mpz_check_format (res1);
+ mpz_check_format (res2);
+ if (mpz_cmp (ref1, res1) != 0 || mpz_cmp (ref2, res2) != 0
+ || mpz_cmp (ref3, res3) != 0)
+ FAIL2 (mpz_gcdext, in1, in2, NULL);
+ }
+
+ /* Don't run mpz_powm for huge exponents or when undefined. */
+ if (mpz_sizeinbase (in2, 2) < 250 && mpz_sgn (in3) != 0
+ && (mpz_sgn (in2) >= 0 || mpz_invert (t, in1, in3)))
+ {
+ mpz_powm (ref1, in1, in2, in3);
+ mpz_check_format (ref1);
+
+ mpz_set (res1, in1);
+ mpz_powm (res1, res1, in2, in3);
+ mpz_check_format (res1);
+ if (mpz_cmp (ref1, res1) != 0)
+ FAIL2 (mpz_powm, in1, in2, in3);
+
+ mpz_set (res1, in2);
+ mpz_powm (res1, in1, res1, in3);
+ mpz_check_format (res1);
+ if (mpz_cmp (ref1, res1) != 0)
+ FAIL2 (mpz_powm, in1, in2, in3);
+
+ mpz_set (res1, in3);
+ mpz_powm (res1, in1, in2, res1);
+ mpz_check_format (res1);
+ if (mpz_cmp (ref1, res1) != 0)
+ FAIL2 (mpz_powm, in1, in2, in3);
+ }
+
+ /* Don't run mpz_powm_ui when undefined. */
+ if (mpz_sgn (in3) != 0)
+ {
+ mpz_powm_ui (ref1, in1, in2i, in3);
+ mpz_check_format (ref1);
+
+ mpz_set (res1, in1);
+ mpz_powm_ui (res1, res1, in2i, in3);
+ mpz_check_format (res1);
+ if (mpz_cmp (ref1, res1) != 0)
+ FAIL2 (mpz_powm_ui, in1, in2, in3);
+
+ mpz_set (res1, in3);
+ mpz_powm_ui (res1, in1, in2i, res1);
+ mpz_check_format (res1);
+ if (mpz_cmp (ref1, res1) != 0)
+ FAIL2 (mpz_powm_ui, in1, in2, in3);
+ }
+
+ {
+ r1 = mpz_gcd_ui (ref1, in1, in2i);
+ mpz_check_format (ref1);
+
+ mpz_set (res1, in1);
+ r2 = mpz_gcd_ui (res1, res1, in2i);
+ mpz_check_format (res1);
+ if (mpz_cmp (ref1, res1) != 0)
+ FAIL2 (mpz_gcd_ui, in1, in2, NULL);
+ }
+#if 0
+ if (mpz_cmp_ui (in2, 1L) > 0 && mpz_sgn (in1) != 0)
+ {
+ /* Test mpz_remove */
+ mpz_remove (ref1, in1, in2);
+ mpz_check_format (ref1);
+
+ mpz_set (res1, in1);
+ mpz_remove (res1, res1, in2);
+ mpz_check_format (res1);
+ if (mpz_cmp (ref1, res1) != 0)
+ FAIL2 (mpz_remove, in1, in2, NULL);
+
+ mpz_set (res1, in2);
+ mpz_remove (res1, in1, res1);
+ mpz_check_format (res1);
+ if (mpz_cmp (ref1, res1) != 0)
+ FAIL2 (mpz_remove, in1, in2, NULL);
+ }
+#endif
+ if (mpz_sgn (in2) != 0)
+ {
+ /* Test mpz_divexact */
+ mpz_mul (t, in1, in2);
+ mpz_divexact (ref1, t, in2);
+ mpz_check_format (ref1);
+
+ mpz_set (res1, t);
+ mpz_divexact (res1, res1, in2);
+ mpz_check_format (res1);
+ if (mpz_cmp (ref1, res1) != 0)
+ FAIL2 (mpz_divexact, t, in2, NULL);
+
+ mpz_set (res1, in2);
+ mpz_divexact (res1, t, res1);
+ mpz_check_format (res1);
+ if (mpz_cmp (ref1, res1) != 0)
+ FAIL2 (mpz_divexact, t, in2, NULL);
+ }
+
+#if 0
+ if (mpz_sgn (in2) > 0)
+ {
+ /* Test mpz_divexact_gcd, same as mpz_divexact */
+ mpz_mul (t, in1, in2);
+ mpz_divexact_gcd (ref1, t, in2);
+ mpz_check_format (ref1);
+
+ mpz_set (res1, t);
+ mpz_divexact_gcd (res1, res1, in2);
+ mpz_check_format (res1);
+ if (mpz_cmp (ref1, res1) != 0)
+ FAIL2 (mpz_divexact_gcd, t, in2, NULL);
+
+ mpz_set (res1, in2);
+ mpz_divexact_gcd (res1, t, res1);
+ mpz_check_format (res1);
+ if (mpz_cmp (ref1, res1) != 0)
+ FAIL2 (mpz_divexact_gcd, t, in2, NULL);
+ }
+#endif
+ }
+
+ if (failures != 0)
+ {
+ fprintf (stderr, "mpz/reuse: %ld error%s\n", failures, "s" + (failures == 1));
+ exit (1);
+ }
+
+ mpz_clear (bs);
+ mpz_clear (in1);
+ mpz_clear (in2);
+ mpz_clear (in3);
+ mpz_clear (ref1);
+ mpz_clear (ref2);
+ mpz_clear (ref3);
+ mpz_clear (res1);
+ mpz_clear (res2);
+ mpz_clear (res3);
+ mpz_clear (t);
+}
+
+void
+dump3 (const char *name, mpz_t in1, mpz_t in2, mpz_t in3)
+{
+ printf ("failure in %s (", name);
+ mpz_out_str (stdout, -16, in1);
+ if (in2 != NULL)
+ {
+ printf (" ");
+ mpz_out_str (stdout, -16, in2);
+ }
+ if (in3 != NULL)
+ {
+ printf (" ");
+ mpz_out_str (stdout, -16, in3);
+ }
+ printf (")\n");
+}
+
+void
+mpz_check_format (const mpz_t x)
+{
+ mp_size_t n = x ->_mp_size;
+ if (n < 0)
+ n = - n;
+
+ if (n > x->_mp_alloc)
+ {
+ fprintf (stderr, "mpz_t size exceeds allocation!\n");
+ abort ();
+ }
+
+ if (n > 0 && x->_mp_d[n-1] == 0)
+ {
+ fprintf (stderr, "Unnormalized mpz_t!\n");
+ abort ();
+ }
+}