1 /* open_datafile.c -- Set up datafile context.
2
3 Usage: Before including this template file in your source file,
4 #define the prototype of the function under test in the CALL
5 symbol, see tadd_tmpl.c for an example.
6
7 Copyright (C) 2012, 2013 INRIA
8
9 This file is part of GNU MPC.
10
11 GNU MPC is free software; you can redistribute it and/or modify it under
12 the terms of the GNU Lesser General Public License as published by the
13 Free Software Foundation; either version 3 of the License, or (at your
14 option) any later version.
15
16 GNU MPC is distributed in the hope that it will be useful, but WITHOUT ANY
17 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
18 FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for
19 more details.
20
21 You should have received a copy of the GNU Lesser General Public License
22 along with this program. If not, see http://www.gnu.org/licenses/ .
23 */
24
25 #include <string.h>
26 #include "mpc-tests.h"
27
28 void
open_datafile(mpc_datafile_context_t * datafile_context,const char * data_filename)29 open_datafile (mpc_datafile_context_t* datafile_context,
30 const char * data_filename)
31 {
32 char *src_dir;
33 char default_srcdir[] = ".";
34
35 src_dir = getenv ("srcdir");
36 if (src_dir == NULL)
37 src_dir = default_srcdir;
38
39 datafile_context->pathname =
40 (char *) malloc ((strlen (src_dir)) + strlen (data_filename) + 2);
41 if (datafile_context->pathname == NULL)
42 {
43 fprintf (stderr, "Cannot allocate memory\n");
44 exit (1);
45 }
46 sprintf (datafile_context->pathname, "%s/%s", src_dir, data_filename);
47 datafile_context->fd = fopen (datafile_context->pathname, "r");
48 if (datafile_context->fd == NULL)
49 {
50 fprintf (stderr, "Unable to open %s\n", datafile_context->pathname);
51 exit (1);
52 }
53
54 datafile_context->line_number = 1;
55 datafile_context->nextchar = getc (datafile_context->fd);
56 tpl_skip_whitespace_comments (datafile_context);
57 }
58