1 files changed, 120 insertions, 0 deletions
diff --git a/gnu/lib/libgmp/mpf/tests/t-conv.c b/gnu/lib/libgmp/mpf/tests/t-conv.c
new file mode 100644
index 00000000000..00d461d064c
--- /dev/null
+++ b/gnu/lib/libgmp/mpf/tests/t-conv.c
@@ -0,0 +1,120 @@
+/* Test mpf_get_str and mpf_set_str.
+
+Copyright (C) 1996 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library.
+
+The GNU MP Library is free software; you can redistribute it and/or modify
+it under the terms of the GNU Library General Public License as published by
+the Free Software Foundation; either version 2 of the License, or (at your
+option) any later version.
+
+The GNU MP Library 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 Library General Public
+License for more details.
+
+You should have received a copy of the GNU Library General Public License
+along with the GNU MP Library; see the file COPYING.LIB.  If not, write to
+the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+MA 02111-1307, USA. */
+
+#include <stdio.h>
+#include "gmp.h"
+#include "gmp-impl.h"
+#include "urandom.h"
+
+#ifndef SIZE
+#define SIZE 10
+#endif
+
+#ifndef EXPO
+#define EXPO 20
+#endif
+
+main (argc, argv)
+     int argc;
+     char **argv;
+{
+  mpf_t x, y;
+  int reps = 20000;
+  int i;
+  mp_size_t bprec = 100;
+  mpf_t d, rerr, max_rerr, limit_rerr;
+  char *str;
+  long bexp;
+  long size, exp;
+  int base;
+  char buf[SIZE * BITS_PER_MP_LIMB + 5];
+
+  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_set_ui (limit_rerr, 1);
+  mpf_div_2exp (limit_rerr, limit_rerr, bprec);
+#if VERBOSE
+  mpf_dump (limit_rerr);
+#endif
+  mpf_init (rerr);
+  mpf_init_set_ui (max_rerr, 0);
+
+  mpf_init (x);
+  mpf_init (y);
+  mpf_init (d);
+
+  for (i = 0; i < reps; i++)
+    {
+      size = urandom () % (2 * SIZE) - SIZE;
+      exp = urandom () % EXPO;
+      mpf_random2 (x, size, exp);
+
+      base = urandom () % 35 + 2;
+
+      str = mpf_get_str (0, &bexp, base, 0, x);
+
+      if (str[0] == '-')
+	sprintf (buf, "-0.%s@%ld", str + 1, bexp);
+      else
+	sprintf (buf, "0.%s@%ld", str, bexp);
+
+      mpf_set_str (y, buf, -base);
+      free (str);
+
+      mpf_reldiff (rerr, x, y);
+      if (mpf_cmp (rerr, max_rerr) > 0)
+	{
+	  mpf_set (max_rerr, rerr);
+#if VERBOSE
+	  mpf_dump (max_rerr);
+#endif
+	  if (mpf_cmp (rerr, limit_rerr) > 0)
+	    {
+	      printf ("ERROR after %d tests\n", i);
+	      printf ("base = %d\n", base);
+	      printf ("   x = "); mpf_dump (x);
+	      printf ("   y = "); mpf_dump (y);
+	      abort ();
+	    }
+	}
+    }
+
+  exit (0);
+}
+
+oo (x)
+     mpf_t x;
+{
+  int i;
+  printf (" exp = %ld\n", x->_mp_exp);
+  printf ("size = %d\n", x->_mp_size);
+  for (i = ABS (x->_mp_size) - 1; i >= 0; i--)
+    printf ("%08lX ", x->_mp_d[i]);
+  printf ("\n");
+  mpf_dump (x);
+}