1 /* This file is part of GNU Pies testsuite.
2 Copyright (C) 2019-2020 Sergey Poznyakoff
3
4 GNU Pies is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 3, or (at your option)
7 any later version.
8
9 GNU Pies is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
13
14 You should have received a copy of the GNU General Public License
15 along with GNU Pies. If not, see <http://www.gnu.org/licenses/>. */
16
17 #include <stdio.h>
18
19 int
main(int argc,char ** argv)20 main (int argc, char **argv)
21 {
22 char *progname = argv[0];
23 FILE *fp;
24 int c;
25 unsigned count;
26
27 if (argc != 2)
28 {
29 fprintf (stderr, "usage: %s FILE\n", progname);
30 fprintf (stderr, "Prints number of lines in FILE.\n");
31 return 1;
32 }
33
34 fp = fopen (argv[1], "r");
35 if (!fp)
36 {
37 perror (argv[1]);
38 return 2;
39 }
40
41 count = 0;
42 while ((c = fgetc (fp)) != EOF)
43 if (c == '\n')
44 count++;
45 fclose (fp);
46 printf ("%u\n", count);
47 return 0;
48 }
49