Files renamed (constants).

git-svn-id: svn://scm.gforge.inria.fr/svn/mpfr/trunk@1631 280ebfd0-de03-0410-8827-d642c229c3f4

1 files changed, 90 insertions, 0 deletions

diff --git a/tests/tconst_euler.c b/tests/tconst_euler.c
new file mode 100644
index 000000000..ab9f74321
--- /dev/null
+++ b/tests/tconst_euler.c
@@ -0,0 +1,90 @@
+/* Test file for mpfr_const_euler.
+
+Copyright (C) 2001 Free Software Foundation.
+
+This file is part of the MPFR Library.
+
+The MPFR Library is free software; you can redistribute it and/or modify
+it under the terms of the GNU Lesser General Public License as published by
+the Free Software Foundation; either version 2.1 of the License, or (at your
+option) any later version.
+
+The MPFR 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 Lesser General Public
+License for more details.
+
+You should have received a copy of the GNU Lesser General Public License
+along with the MPFR 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 <stdlib.h>
+#include "gmp.h"
+#include "mpfr.h"
+#include "mpfr-impl.h"
+
+int
+main (int argc, char *argv[])
+{
+  mpfr_t gamma, y, z, t;
+  unsigned int err, prec, yprec, p0 = 2, p1 = 200;
+  mp_rnd_t rnd;
+
+  prec = (argc < 2) ? 53 : atoi(argv[1]);
+
+  if (argc > 1)
+    {
+      mpfr_init2 (gamma, prec);
+      mpfr_const_euler (gamma, GMP_RNDN);
+      printf("gamma="); mpfr_out_str (stdout, 10, 0, gamma, GMP_RNDD);
+      putchar ('\n');
+      mpfr_clear (gamma);
+      return 0;
+    }
+
+  mpfr_init (y);
+  mpfr_init (z);
+  mpfr_init (t);
+
+  for (prec = p0; prec <= p1; prec++)
+    {
+      mpfr_set_prec (z, prec);
+      mpfr_set_prec (t, prec);
+      yprec = prec + 10;
+
+      for (rnd=0; rnd<4; rnd++)
+	{
+	  mpfr_set_prec (y, yprec);
+	  mpfr_const_euler (y, rnd);
+	  err = (rnd == GMP_RNDN) ? yprec + 1 : yprec;
+	  if (mpfr_can_round (y, err, rnd, rnd, prec))
+	    {
+	      mpfr_set (t, y, rnd);
+	      mpfr_const_euler (z, rnd);
+	      if (mpfr_cmp (t, z))
+		{
+		  printf ("results differ for prec=%u rnd_mode=%s\n", prec,
+			  mpfr_print_rnd_mode (rnd));
+		  printf ("   got      ");
+		  mpfr_out_str (stdout, 2, prec, z, GMP_RNDN);
+		  putchar ('\n');
+		  printf ("   expected ");
+		  mpfr_out_str (stdout, 2, prec, t, GMP_RNDN);
+		  putchar ('\n');
+		  printf ("   approximation was ");
+		  mpfr_print_binary (y);
+		  putchar ('\n');
+		  exit (1);
+		}
+	    }
+	}
+    }
+
+  mpfr_clear (y);
+  mpfr_clear (z);
+  mpfr_clear (t);
+
+  return 0;
+}