1/* Test file for internal debugging-out functions:
2   mpfr_dump, mpfr_print_binary, mpfr_print_rnd_mode.
3
4Copyright 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
5Contributed by the Arenaire and Cacao projects, INRIA.
6
7This file is part of the GNU MPFR Library.
8
9The GNU MPFR Library is free software; you can redistribute it and/or modify
10it under the terms of the GNU Lesser General Public License as published by
11the Free Software Foundation; either version 3 of the License, or (at your
12option) any later version.
13
14The GNU MPFR Library is distributed in the hope that it will be useful, but
15WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
16or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
17License for more details.
18
19You should have received a copy of the GNU Lesser General Public License
20along with the GNU MPFR Library; see the file COPYING.LESSER.  If not, see
21http://www.gnu.org/licenses/ or write to the Free Software Foundation, Inc.,
2251 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. */
23
24#include <stdlib.h>
25#include "mpfr-test.h"
26
27/* We output stdout to a file to check if it is correct
28   Is it a good idea?
29   We can't use tmpname since it is insecure */
30#define FILE_NAME "dummy.tmp"
31
32static const char Buffer[] =
33"@NaN@\n"
34"-@Inf@\n"
35"-0\n"
36"0.10101010101011111001000110001100010000100000000000000E32\n";
37
38int
39main (void)
40{
41  mpfr_t x;
42  FILE *f;
43  int i;
44
45  tests_start_mpfr ();
46
47  /* Check RND_MODE */
48  if (strcmp (mpfr_print_rnd_mode(MPFR_RNDN), "MPFR_RNDN"))
49    {
50      printf ("Error for printing MPFR_RNDN\n");
51      exit (1);
52    }
53  if (strcmp (mpfr_print_rnd_mode(MPFR_RNDU), "MPFR_RNDU"))
54    {
55      printf ("Error for printing MPFR_RNDU\n");
56      exit (1);
57    }
58  if (strcmp (mpfr_print_rnd_mode(MPFR_RNDD), "MPFR_RNDD"))
59    {
60      printf ("Error for printing MPFR_RNDD\n");
61      exit (1);
62    }
63  if (strcmp (mpfr_print_rnd_mode(MPFR_RNDZ), "MPFR_RNDZ"))
64    {
65      printf ("Error for printing MPFR_RNDZ\n");
66      exit (1);
67    }
68  if (mpfr_print_rnd_mode ((mpfr_rnd_t) -1) != NULL ||
69      mpfr_print_rnd_mode (MPFR_RND_MAX) != NULL)
70    {
71      printf ("Error for illegal rounding mode values.\n");
72      exit (1);
73    }
74
75  /* Reopen stdout to a file. All errors will be put to stderr
76     Can't use tmpname since it is unsecure */
77  if (freopen (FILE_NAME, "w", stdout) == NULL)
78    {
79      printf ("Error can't redirect stdout\n");
80      exit (1);
81    }
82  mpfr_init (x);
83  mpfr_set_nan (x);
84  mpfr_dump (x);
85  mpfr_set_inf (x, -1);
86  mpfr_dump (x);
87  MPFR_SET_ZERO (x); MPFR_SET_NEG (x);
88  mpfr_dump (x);
89  mpfr_set_str_binary (x, "0.101010101010111110010001100011000100001E32");
90  mpfr_dump (x);
91  mpfr_print_mant_binary ("x=",MPFR_MANT(x), MPFR_PREC(x));
92
93
94  mpfr_clear (x);
95  fclose (stdout);
96  /* Open it and check for it */
97  f = fopen (FILE_NAME, "r");
98  if (f == NULL)
99    {
100      fprintf (stderr, "Can't reopen file!\n");
101      exit (1);
102    }
103  for(i = 0 ; i < sizeof(Buffer)-1 ; i++)
104    {
105      if (feof (f))
106        {
107          fprintf (stderr, "Error EOF\n");
108          exit (1);
109        }
110      if (Buffer[i] != fgetc (f))
111        {
112          fprintf (stderr, "Character mismatch for i=%d / %lu\n",
113                  i, (unsigned long) sizeof(Buffer));
114          exit (1);
115        }
116    }
117  fclose (f);
118
119  remove (FILE_NAME);
120  tests_end_mpfr ();
121  return 0;
122}
123