+ Add mpfr_add1sp which provides addition when all the operands have the same precision.

+ Add new test files for mpfr_copysign and mpfr_min and mpfr_max.
+ Add test for mpfr_exp10 in tests/texp.c
+ Improve coverage of div_2ui.c and mul_2ui.c
+ Add a forgotten ASSERT in mpfr_sqrt


git-svn-id: svn://scm.gforge.inria.fr/svn/mpfr/trunk@2686 280ebfd0-de03-0410-8827-d642c229c3f4

1 files changed, 170 insertions, 0 deletions

diff --git a/tests/tminmax.c b/tests/tminmax.c
new file mode 100644
index 000000000..2592c420e
--- /dev/null
+++ b/tests/tminmax.c
@@ -0,0 +1,170 @@
+/* Test file for mpfr_min & mpfr_max.
+
+Copyright 2004 Free Software Foundation, Inc.
+
+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 "mpfr-test.h"
+
+int
+main (void)
+{
+  mpfr_t x, y, z;
+
+  tests_start_mpfr ();
+
+  mpfr_init (x);
+  mpfr_init (y);
+  mpfr_init (z);
+
+  /* case x=NaN && y=NAN */
+  mpfr_set_nan (x);
+  mpfr_set_nan (y);
+  mpfr_min (z, x, y, GMP_RNDN);
+  if (!mpfr_nan_p (z))
+    {
+      printf ("Error in mpfr_min (NaN, NaN)\n");
+      exit (1);
+    }
+  mpfr_max (z, x, y, GMP_RNDN);
+  if (!mpfr_nan_p (z))
+    {
+      printf ("Error in mpfr_max (NaN, NaN)\n");
+      exit (1);
+    }
+  /* case x=NaN */
+  mpfr_set_nan (x);
+  mpfr_set_ui (y, 0, GMP_RNDN);
+  mpfr_min (z, x, y, GMP_RNDN);
+  if (mpfr_cmp_ui (z, 0))
+    {
+      printf ("Error in mpfr_min (NaN, 0)\n");
+      exit (1);
+    }
+  mpfr_min (z, y, x, GMP_RNDN);
+  if (mpfr_cmp_ui (z, 0))
+    {
+      printf ("Error in mpfr_min (0, NaN)\n");
+      exit (1);
+    }
+  mpfr_max (z, x, y, GMP_RNDN);
+  if (mpfr_cmp_ui (z, 0))
+    {
+      printf ("Error in mpfr_max (NaN, 0)\n");
+      exit (1);
+    }
+  mpfr_max (z, y, x, GMP_RNDN);
+  if (mpfr_cmp_ui (z, 0))
+    {
+      printf ("Error in mpfr_max (0, NaN)\n");
+      exit (1);
+    }
+  /* Case x=0+ and x=0- */
+  mpfr_set_ui (x, 0, GMP_RNDN); 
+  mpfr_set_ui (y, 0, GMP_RNDN); MPFR_SET_NEG(y);
+  mpfr_max (z, x, y, GMP_RNDN);
+  if (!MPFR_IS_ZERO(z) || MPFR_IS_NEG(z))
+    {
+      printf ("Error in mpfr_max (0+, 0-)\n");
+      exit (1);
+    }
+  mpfr_min (z, x, y, GMP_RNDN);
+  if (!MPFR_IS_ZERO(z) || MPFR_IS_POS(z))
+    {
+      printf ("Error in mpfr_min (0+, 0-)\n");
+      exit (1);
+    }
+  /* Case x=0- and y=0+ */
+  mpfr_set_ui (x, 0, GMP_RNDN); MPFR_SET_NEG(x);
+  mpfr_set_ui (y, 0, GMP_RNDN);
+  mpfr_max (z, x, y, GMP_RNDN);
+  if (!MPFR_IS_ZERO(z) || MPFR_IS_NEG(z))
+    {
+      printf ("Error in mpfr_max (0+, 0-)\n");
+      exit (1);
+    }
+  mpfr_min (z, x, y, GMP_RNDN);
+  if (!MPFR_IS_ZERO(z) || MPFR_IS_POS(z))
+    {
+      printf ("Error in mpfr_min (0+, 0-)\n");
+      exit (1);
+    }
+
+  /* case x=+Inf */
+  mpfr_set_inf (x, 1);
+  mpfr_set_si (y, -12, GMP_RNDN);
+  mpfr_min (z, x, y, GMP_RNDN);
+  if ( mpfr_cmp_si (z, -12) )
+    {
+      printf ("Error in mpfr_min (+Inf, -12)\n");
+      exit (1);
+    }
+  mpfr_max (z, x, y, GMP_RNDN);
+  if ( !MPFR_IS_INF(z) || MPFR_IS_NEG(z) )
+    {
+      printf ("Error in mpfr_max (+Inf, 12)\n");
+      exit (1);
+    }
+  /* case x=-Inf */
+  mpfr_set_inf (x, -1);
+  mpfr_set_ui (y, 12, GMP_RNDN);
+  mpfr_max (z, x, y, GMP_RNDN);
+  if ( mpfr_cmp_ui (z, 12) )
+    {
+      printf ("Error in mpfr_max (-Inf, 12)\n");
+      exit (1);
+    }
+  mpfr_min (z, x, y, GMP_RNDN);
+  if ( !MPFR_IS_INF(z) || MPFR_IS_POS(z) )
+    {
+      printf ("Error in mpfr_min (-Inf, 12)\n");
+      exit (1);
+    }
+
+  /* case x=17 and y=42 */
+  mpfr_set_ui (x, 17, GMP_RNDN);
+  mpfr_set_ui (y, 42, GMP_RNDN);
+  mpfr_max (z, x, y, GMP_RNDN);
+  if ( mpfr_cmp_ui (z, 42) )
+    {
+      printf ("Error in mpfr_max (17, 42)\n");
+      exit (1);
+    }
+  mpfr_max (z, y, x, GMP_RNDN);
+  if ( mpfr_cmp_ui (z, 42) )
+    {
+      printf ("Error in mpfr_max (42, 17)\n");
+      exit (1);
+    }
+  mpfr_min (z, y, x, GMP_RNDN);
+  if ( mpfr_cmp_ui (z, 17) )
+    {
+      printf ("Error in mpfr_min (42, 17)\n");
+      exit (1);
+    }
+
+  mpfr_clear (x);
+  mpfr_clear (y);
+  mpfr_clear (z);
+
+  tests_end_mpfr ();
+  return 0;
+}