1/* Test mpf_inp_str.
2
3Copyright 2001, 2002 Free Software Foundation, Inc.
4
5This file is part of the GNU MP Library.
6
7The GNU MP Library is free software; you can redistribute it and/or modify
8it under the terms of the GNU Lesser General Public License as published by
9the Free Software Foundation; either version 3 of the License, or (at your
10option) any later version.
11
12The GNU MP Library is distributed in the hope that it will be useful, but
13WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
14or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
15License for more details.
16
17You should have received a copy of the GNU Lesser General Public License
18along with the GNU MP Library.  If not, see http://www.gnu.org/licenses/.  */
19
20#include "config.h"
21
22#include <stdio.h>
23#include <stdlib.h>
24#include <string.h>
25#if HAVE_UNISTD_H
26#include <unistd.h>		/* for unlink */
27#endif
28
29#include "gmp.h"
30#include "gmp-impl.h"
31#include "tests.h"
32
33
34#define FILENAME  "t-inp_str.tmp"
35
36
37void
38check_data (void)
39{
40  static const struct {
41    const char  *inp;
42    int         base;
43    const char  *want;
44    int         want_nread;
45
46  } data[] = {
47
48    { "0",   10, "0", 1 },
49
50    { "abc", 10, "0", 0 },
51    { "ghi", 16, "0", 0 },
52
53    { "125",    10, "125",  3 },
54    { "125e1",  10, "1250", 5 },
55    { "125e-1", 10, "12.5", 6 },
56
57    {  "ff", 16,  "255", 2 },
58    { "-ff", 16, "-255", 3 },
59    {  "FF", 16,  "255", 2 },
60    { "-FF", 16, "-255", 3 },
61
62    { "100",     16, "256",  3 },
63    { "100@1",   16, "4096", 5 },
64    { "100@10",  16, "4722366482869645213696", 6 },
65    { "100@10", -16, "281474976710656",        6 },
66    { "100@-1",  16, "16",   6 },
67    { "10000000000000000@-10",  16, "1", 21 },
68    { "10000000000@-10",       -16, "1", 15 },
69
70    { "z", 36, "35", 1 },
71    { "Z", 36, "35", 1 },
72    { "z@1", 36, "1260", 3 },
73    { "Z@1", 36, "1260", 3 },
74
75    {  "0",      0,   "0", 1 },
76  };
77
78  mpf_t  got, want;
79  long   ftell_nread;
80  int    i, pre, post, j, got_nread, want_nread;
81  FILE   *fp;
82
83  mpf_init (got);
84  mpf_init (want);
85
86  for (i = 0; i < numberof (data); i++)
87    {
88      for (pre = 0; pre <= 3; pre++)
89        {
90          for (post = 0; post <= 2; post++)
91            {
92              mpf_set_str_or_abort (want, data[i].want, 10);
93              MPF_CHECK_FORMAT (want);
94
95              /* create the file new each time to ensure its length is what
96                 we want */
97              fp = fopen (FILENAME, "w+");
98              ASSERT_ALWAYS (fp != NULL);
99              for (j = 0; j < pre; j++)
100                putc (' ', fp);
101              fputs (data[i].inp, fp);
102              for (j = 0; j < post; j++)
103                putc (' ', fp);
104              fflush (fp);
105              ASSERT_ALWAYS (! ferror(fp));
106
107              rewind (fp);
108              got_nread = mpf_inp_str (got, fp, data[i].base);
109
110              if (got_nread != 0)
111                {
112                  ftell_nread = ftell (fp);
113                  if (got_nread != ftell_nread)
114                    {
115                      printf ("mpf_inp_str nread wrong\n");
116                      printf ("  inp          \"%s\"\n", data[i].inp);
117                      printf ("  base         %d\n", data[i].base);
118                      printf ("  pre          %d\n", pre);
119                      printf ("  post         %d\n", post);
120                      printf ("  got_nread    %d\n", got_nread);
121                      printf ("  ftell_nread  %ld\n", ftell_nread);
122                      abort ();
123                    }
124                }
125
126              /* if data[i].inp is a whole string to read and there's no post
127                 whitespace then expect to have EOF */
128              if (post == 0 && data[i].want_nread == strlen(data[i].inp))
129                {
130                  int  c = getc(fp);
131                  if (c != EOF)
132                    {
133                      printf ("mpf_inp_str didn't read to EOF\n");
134                      printf ("  inp   \"%s\"\n", data[i].inp);
135                      printf ("  base  %d\n", data[i].base);
136                      printf ("  pre   %d\n", pre);
137                      printf ("  post  %d\n", post);
138                      printf ("  c     '%c' %#x\n", c, c);
139                      abort ();
140                    }
141                }
142
143              /* only expect "pre" included in the count when non-zero */
144              want_nread = data[i].want_nread;
145              if (want_nread != 0)
146                want_nread += pre;
147
148              if (got_nread != want_nread)
149                {
150                  printf ("mpf_inp_str nread wrong\n");
151                  printf ("  inp         \"%s\"\n", data[i].inp);
152                  printf ("  base        %d\n", data[i].base);
153                  printf ("  pre         %d\n", pre);
154                  printf ("  post        %d\n", post);
155                  printf ("  got_nread   %d\n", got_nread);
156                  printf ("  want_nread  %d\n", want_nread);
157                  abort ();
158                }
159
160              MPF_CHECK_FORMAT (got);
161
162              if (mpf_cmp (got, want) != 0)
163                {
164                  printf ("mpf_inp_str wrong result\n");
165                  printf ("  inp   \"%s\"\n", data[i].inp);
166                  printf ("  base  %d\n", data[i].base);
167                  mpf_trace ("  got ",  got);
168                  mpf_trace ("  want", want);
169                  abort ();
170                }
171
172              ASSERT_ALWAYS (fclose (fp) == 0);
173            }
174        }
175    }
176
177  mpf_clear (got);
178  mpf_clear (want);
179}
180
181int
182main (void)
183{
184  tests_start ();
185
186  check_data ();
187
188  unlink (FILENAME);
189  tests_end ();
190  exit (0);
191}
192