new arithmetic functions with a double argument

git-svn-id: svn://scm.gforge.inria.fr/svn/mpfr/trunk@4832 280ebfd0-de03-0410-8827-d642c229c3f4

1 files changed, 79 insertions, 0 deletions

diff --git a/tests/tmul_d.c b/tests/tmul_d.c
new file mode 100644
index 000000000..19e61953b
--- /dev/null
+++ b/tests/tmul_d.c
@@ -0,0 +1,79 @@
+/* Test file for mpfr_mul_d
+
+Copyright 2007 Free Software Foundation, Inc.
+Contributed by the Arenaire and Cacao projects, INRIA.
+
+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., 51 Franklin St, Fifth Floor, Boston,
+MA 02110-1301, USA. */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <float.h>
+
+#include "mpfr-test.h"
+
+static void
+check_nans (void)
+{
+  mpfr_t  x, y;
+
+  mpfr_init2 (x, 123);
+  mpfr_init2 (y, 123);
+
+  /* nan * 1.0 is nan */
+  mpfr_set_nan (x);
+  mpfr_mul_d (y, x, 1.0, GMP_RNDN);
+  MPFR_ASSERTN (mpfr_nan_p (y));
+
+  /* +inf * 1.0 == +inf */
+  mpfr_set_inf (x, 1);
+  mpfr_mul_d (y, x, 1.0, GMP_RNDN);
+  MPFR_ASSERTN (mpfr_inf_p (y));
+  MPFR_ASSERTN (mpfr_sgn (y) > 0);
+
+  /* +inf * 0.0 is nan */
+  mpfr_mul_d (y, x, 0.0, GMP_RNDN);
+  MPFR_ASSERTN (mpfr_nan_p (y));
+
+  /* -inf * 1.0 == -inf */
+  mpfr_set_inf (x, -1);
+  mpfr_mul_d (y, x, 1.0, GMP_RNDN);
+  MPFR_ASSERTN (mpfr_inf_p (y));
+  MPFR_ASSERTN (mpfr_sgn (y) < 0);
+
+  mpfr_clear (x);
+  mpfr_clear (y);
+}
+
+#define TEST_FUNCTION mpfr_mul_d
+#define DOUBLE_ARG2
+#define RAND_FUNCTION(x) mpfr_random2(x, MPFR_LIMB_SIZE (x), 1)
+#include "tgeneric.c"
+
+int
+main (int argc, char *argv[])
+{
+  MPFR_TEST_USE_RANDS ();
+  tests_start_mpfr ();
+
+  check_nans ();
+
+  test_generic (2, 1000, 100);
+
+  tests_end_mpfr ();
+  return 0;
+}