Add Chromium-only Blender WebEngine parity work

blender-5.2.0/extern/gmp-source/tests/mpz/t-cong.c

@@ -0,0 +1,226 @@
+/* test mpz_congruent_p and mpz_congruent_ui_p
+
+Copyright 2001, 2002, 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 <stdio.h>
+#include <stdlib.h>
+#include "gmp-impl.h"
+#include "tests.h"
+
+
+void
+check_one (mpz_srcptr a, mpz_srcptr c, mpz_srcptr d, int want)
+{
+  int   got;
+  int   swap;
+
+  for (swap = 0; swap <= 1; swap++)
+    {
+      got = (mpz_congruent_p (a, c, d) != 0);
+      if (want != got)
+	{
+	  printf ("mpz_congruent_p wrong\n");
+	  printf ("   expected %d got %d\n", want, got);
+	  mpz_trace ("	 a", a);
+	  mpz_trace ("	 c", c);
+	  mpz_trace ("	 d", d);
+	  mp_trace_base = -16;
+	  mpz_trace ("	 a", a);
+	  mpz_trace ("	 c", c);
+	  mpz_trace ("	 d", d);
+	  abort ();
+	}
+
+      if (mpz_fits_ulong_p (c) && mpz_fits_ulong_p (d))
+	{
+	  unsigned long	 uc = mpz_get_ui (c);
+	  unsigned long	 ud = mpz_get_ui (d);
+	  got = (mpz_congruent_ui_p (a, uc, ud) != 0);
+	  if (want != got)
+	    {
+	      printf	("mpz_congruent_ui_p wrong\n");
+	      printf	("   expected %d got %d\n", want, got);
+	      mpz_trace ("   a", a);
+	      printf	("   c=%lu\n", uc);
+	      printf	("   d=%lu\n", ud);
+	      mp_trace_base = -16;
+	      mpz_trace ("   a", a);
+	      printf	("   c=0x%lX\n", uc);
+	      printf	("   d=0x%lX\n", ud);
+	      abort ();
+	    }
+	}
+
+      MPZ_SRCPTR_SWAP (a, c);
+    }
+}
+
+
+void
+check_data (void)
+{
+  static const struct {
+    const char *a;
+    const char *c;
+    const char *d;
+    int        want;
+
+  } data[] = {
+
+    /* strict equality mod 0 */
+    { "0", "0", "0", 1 },
+    { "11", "11", "0", 1 },
+    { "3", "11", "0", 0 },
+
+    /* anything congruent mod 1 */
+    { "0", "0", "1", 1 },
+    { "1", "0", "1", 1 },
+    { "0", "1", "1", 1 },
+    { "123", "456", "1", 1 },
+    { "0x123456789123456789", "0x987654321987654321", "1", 1 },
+
+    /* csize==1, dsize==2 changing to 1 after stripping 2s */
+    { "0x3333333333333333",  "0x33333333",
+      "0x180000000", 1 },
+    { "0x33333333333333333333333333333333", "0x3333333333333333",
+      "0x18000000000000000", 1 },
+
+    /* another dsize==2 becoming 1, with opposite signs this time */
+    {  "0x444444441",
+      "-0x22222221F",
+       "0x333333330", 1 },
+    {  "0x44444444444444441",
+      "-0x2222222222222221F",
+       "0x33333333333333330", 1 },
+  };
+
+  mpz_t   a, c, d;
+  int     i;
+
+  mpz_init (a);
+  mpz_init (c);
+  mpz_init (d);
+
+  for (i = 0; i < numberof (data); i++)
+    {
+      mpz_set_str_or_abort (a, data[i].a, 0);
+      mpz_set_str_or_abort (c, data[i].c, 0);
+      mpz_set_str_or_abort (d, data[i].d, 0);
+      check_one (a, c, d, data[i].want);
+    }
+
+  mpz_clear (a);
+  mpz_clear (c);
+  mpz_clear (d);
+}
+
+
+void
+check_random (int argc, char *argv[])
+{
+  gmp_randstate_ptr rands = RANDS;
+  mpz_t   a, c, d, ra, rc;
+  int     i;
+  int     want;
+  int     reps = 10000;
+  mpz_t bs;
+  unsigned long size_range, size;
+
+  if (argc >= 2)
+    reps = atoi (argv[1]);
+
+  mpz_init (bs);
+
+  mpz_init (a);
+  mpz_init (c);
+  mpz_init (d);
+  mpz_init (ra);
+  mpz_init (rc);
+
+  for (i = 0; i < reps; i++)
+    {
+      mpz_urandomb (bs, rands, 32);
+      size_range = mpz_get_ui (bs) % 16 + 1; /* 0..65536 bit operands */
+
+      mpz_urandomb (bs, rands, size_range);
+      size = mpz_get_ui (bs);
+      mpz_rrandomb (a, rands, size);
+
+      mpz_urandomb (bs, rands, 32);
+      size_range = mpz_get_ui (bs) % 16 + 1; /* 0..65536 bit operands */
+
+      mpz_urandomb (bs, rands, size_range);
+      size = mpz_get_ui (bs);
+      mpz_rrandomb (c, rands, size);
+
+      do
+	{
+	  mpz_urandomb (bs, rands, 32);
+	  size_range = mpz_get_ui (bs) % 16 + 1; /* 0..65536 bit operands */
+
+	  mpz_urandomb (bs, rands, size_range);
+	  size = mpz_get_ui (bs);
+	  mpz_rrandomb (d, rands, size);
+	}
+      while (SIZ(d) == 0);
+
+      mpz_negrandom (a, rands);
+      MPZ_CHECK_FORMAT (a);
+      mpz_negrandom (c, rands);
+      MPZ_CHECK_FORMAT (c);
+      mpz_negrandom (d, rands);
+
+      mpz_fdiv_r (ra, a, d);
+      mpz_fdiv_r (rc, c, d);
+
+      want = (mpz_cmp (ra, rc) == 0);
+      check_one (a, c, d, want);
+
+      mpz_sub (ra, ra, rc);
+      mpz_sub (a, a, ra);
+      MPZ_CHECK_FORMAT (a);
+      check_one (a, c, d, 1);
+
+      if (! mpz_pow2abs_p (d))
+        {
+	  refmpz_combit (a, urandom() % (8*GMP_LIMB_BITS));
+	  check_one (a, c, d, 0);
+        }
+    }
+
+  mpz_clear (bs);
+
+  mpz_clear (a);
+  mpz_clear (c);
+  mpz_clear (d);
+  mpz_clear (ra);
+  mpz_clear (rc);
+}
+
+
+int
+main (int argc, char *argv[])
+{
+  tests_start ();
+
+  check_data ();
+  check_random (argc, argv);
+
+  tests_end ();
+  exit (0);
+}