Add Chromium-only Blender WebEngine parity work

blender-5.2.0/extern/gmp-source/tests/mpf/t-muldiv.c

@@ -0,0 +1,158 @@
+/* Test mpf_mul, mpf_div, mpf_ui_div, and mpf_div_ui.
+
+Copyright 1996, 2000, 2001, 2003 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"
+
+#ifndef SIZE
+#define SIZE 16
+#endif
+
+int
+main (int argc, char **argv)
+{
+  mp_size_t size;
+  mp_exp_t exp;
+  int reps = 10000;
+  int i;
+  mpf_t u, v, w, x;
+  mp_size_t bprec = SIZE * GMP_LIMB_BITS;
+  mpf_t rerr, limit_rerr;
+  unsigned long ulimb, vlimb;
+  int single_flag;
+
+  tests_start ();
+
+  if (argc > 1)
+    {
+      reps = strtol (argv[1], 0, 0);
+      if (argc > 2)
+	bprec = strtol (argv[2], 0, 0);
+    }
+
+  mpf_set_default_prec (bprec);
+
+  mpf_init (rerr);
+  mpf_init (limit_rerr);
+
+  mpf_init (u);
+  mpf_init (v);
+  mpf_init (w);
+  mpf_init (x);
+
+  for (i = 0; i < reps; i++)
+    {
+      mp_size_t res_prec;
+
+      res_prec = urandom () % bprec + 1;
+      mpf_set_prec (w, res_prec);
+      mpf_set_prec (x, res_prec);
+
+      mpf_set_ui (limit_rerr, 1);
+      mpf_div_2exp (limit_rerr, limit_rerr, res_prec - 1);
+
+      single_flag = 0;
+
+      if ((urandom () & 1) != 0)
+	{
+	  size = urandom () % (2 * SIZE) - SIZE;
+	  exp = urandom () % SIZE;
+	  mpf_random2 (u, size, exp);
+	}
+      else
+	{
+	  ulimb = urandom ();
+	  mpf_set_ui (u, ulimb);
+	  single_flag = 1;
+	}
+
+      if ((urandom () & 1) != 0)
+	{
+	  size = urandom () % (2 * SIZE) - SIZE;
+	  exp = urandom () % SIZE;
+	  mpf_random2 (v, size, exp);
+	}
+      else
+	{
+	  vlimb = urandom ();
+	  mpf_set_ui (v, vlimb);
+	  single_flag = 2;
+	}
+
+      if (mpf_sgn (v) == 0)
+	continue;
+
+      mpf_div (w, u, v);
+      mpf_mul (x, w, v);
+      mpf_reldiff (rerr, u, x);
+      if (mpf_cmp (rerr, limit_rerr) > 0)
+	{
+	  printf ("ERROR in mpf_mul or mpf_div after %d tests\n", i);
+	  printf ("   u = "); mpf_dump (u);
+	  printf ("   v = "); mpf_dump (v);
+	  printf ("   x = "); mpf_dump (x);
+	  printf ("   w = "); mpf_dump (w);
+	  abort ();
+	}
+
+      if (single_flag == 2)
+	{
+	  mpf_div_ui (x, u, vlimb);
+	  mpf_reldiff (rerr, w, x);
+	  if (mpf_cmp (rerr, limit_rerr) > 0)
+	    {
+	      printf ("ERROR in mpf_div or mpf_div_ui after %d tests\n", i);
+	      printf ("   u = "); mpf_dump (u);
+	      printf ("   v = "); mpf_dump (v);
+	      printf ("   x = "); mpf_dump (x);
+	      printf ("   w = "); mpf_dump (w);
+	      abort ();
+	    }
+	}
+
+      if (single_flag == 1)
+	{
+	  mpf_ui_div (x, ulimb, v);
+	  mpf_reldiff (rerr, w, x);
+	  if (mpf_cmp (rerr, limit_rerr) > 0)
+	    {
+	      printf ("ERROR in mpf_div or mpf_ui_div after %d tests\n", i);
+	      printf ("   u = "); mpf_dump (u);
+	      printf ("   v = "); mpf_dump (v);
+	      printf ("   x = "); mpf_dump (x);
+	      printf ("   w = "); mpf_dump (w);
+	      abort ();
+	    }
+	}
+    }
+
+  mpf_clear (rerr);
+  mpf_clear (limit_rerr);
+
+  mpf_clear (u);
+  mpf_clear (v);
+  mpf_clear (w);
+  mpf_clear (x);
+
+  tests_end ();
+  exit (0);
+}