Add mpfr_cmp_ld and its test

git-svn-id: svn://scm.gforge.inria.fr/svn/mpfr/trunk@2826 280ebfd0-de03-0410-8827-d642c229c3f4

1 files changed, 74 insertions, 0 deletions

diff --git a/tests/tcmp_ld.c b/tests/tcmp_ld.c
new file mode 100644
index 000000000..51810d6ba
--- /dev/null
+++ b/tests/tcmp_ld.c
@@ -0,0 +1,74 @@
+/* Test file for mpfr_cmp_ld.
+
+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;
+
+  tests_start_mpfr ();
+
+  mpfr_init2(x, MPFR_LDBL_MANT_DIG);
+  
+  mpfr_set_ld (x, 2.34763465, GMP_RNDN);
+  if (mpfr_cmp_ld(x, 2.34763465)!=0) {
+    printf("Error in mpfr_cmp_ld 2.34763465 and ");
+    mpfr_out_str(stdout, 10, 0, x, GMP_RNDN); putchar('\n');
+    exit(1);
+  }
+  if (mpfr_cmp_ld(x, 2.345)<=0) {
+    printf("Error in mpfr_cmp_ld 2.345 and ");
+    mpfr_out_str(stdout, 10, 0, x, GMP_RNDN); putchar('\n');
+    exit(1);
+  }
+  if (mpfr_cmp_ld(x, 2.4)>=0) {
+    printf("Error in mpfr_cmp_ld 2.4 and ");
+    mpfr_out_str(stdout, 10, 0, x, GMP_RNDN); putchar('\n');
+    exit(1);
+  }
+
+  mpfr_set_ui (x, 0, GMP_RNDZ);
+  mpfr_neg (x, x, GMP_RNDZ);
+  if (mpfr_cmp_ld (x, 0.0)) {
+    printf("Error in mpfr_cmp_ld 0.0 and ");
+    mpfr_out_str(stdout, 10, 0, x, GMP_RNDN); putchar('\n');
+    exit(1);
+  }
+
+  mpfr_set_ui (x, 0, GMP_RNDN);
+  mpfr_ui_div (x, 1, x, GMP_RNDU);
+  if (mpfr_cmp_ld (x, 0.0) == 0)
+    {
+      printf ("Error in mpfr_cmp_ld (Inf, 0)\n");
+      exit (1);
+    }
+
+  mpfr_clear(x);
+
+  tests_end_mpfr ();
+  return 0;
+}
+
+