add new test file for hyperbolic function

git-svn-id: svn://scm.gforge.inria.fr/svn/mpfr/trunk@1060 280ebfd0-de03-0410-8827-d642c229c3f4

1 files changed, 96 insertions, 0 deletions

diff --git a/tests/tasinh.c b/tests/tasinh.c
new file mode 100644
index 000000000..de1667a4c
--- /dev/null
+++ b/tests/tasinh.c
@@ -0,0 +1,96 @@
+/* Test file for mpfr_asinh.
+
+Copyright (C) 2001 Free Software Foundation.
+Adapted from tarctan.c.
+
+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 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 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 Library General Public
+License for more details.
+
+You should have received a copy of the GNU Library 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>
+
+#define TEST_FUNCTION mpfr_asinh
+
+int
+main (int argc, char *argv[])
+{
+  unsigned int prec, err, yprec, n, p0 = 1, p1 = 100, N = 100;
+  mp_rnd_t rnd;
+  mpfr_t x, y, z, t;
+
+  mpfr_init (x);
+  mpfr_init (y);
+  mpfr_init (z);
+  mpfr_init (t);
+
+  /* tasinh prec - perform one random computation with precision prec */
+  if (argc >= 2)
+    {
+      p0 = p1 = atoi (argv[1]);
+      N = 1;
+    }
+
+  for (prec = p0; prec <= p1; prec++)
+    {
+      mpfr_set_prec (x, prec);
+      mpfr_set_prec (z, prec);
+      mpfr_set_prec (t, prec);
+      yprec = prec + 10;
+
+      for (n=0; n<N; n++)
+	{
+	  mpfr_random (x);
+          if (random() % 2)
+	    mpfr_neg (x, x, GMP_RNDN);
+	  rnd = random () % 4;
+	  mpfr_set_prec (y, yprec);
+	  TEST_FUNCTION (y, x, rnd);
+	  err = (rnd == GMP_RNDN) ? yprec + 1 : yprec;
+	  if (mpfr_can_round (y, err, rnd, rnd, prec))
+	    {
+	      mpfr_set (t, y, rnd);
+	      TEST_FUNCTION (z, x, rnd);
+	      if (mpfr_cmp (t, z))
+		{
+		  printf ("results differ for x=");
+		  mpfr_out_str (stdout, 10, prec, x, GMP_RNDN);
+		  printf (" 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_raw (y);
+		  putchar ('\n');
+		  exit (1);
+		}
+	    }
+	}
+    }
+
+  mpfr_clear (x);
+  mpfr_clear (y);
+  mpfr_clear (z);
+  mpfr_clear (t);
+
+  return 0;
+}