File: vtkRequireLargeFilesSupport.cxx

package info (click to toggle)
vtk6 6.1.0+dfsg2-6
  • links: PTS, VCS
  • area: main
  • in suites: jessie, jessie-kfreebsd
  • size: 165,164 kB
  • ctags: 226,428
  • sloc: cpp: 1,354,490; ansic: 730,748; python: 227,134; tcl: 48,285; xml: 8,290; yacc: 4,832; java: 3,827; perl: 3,108; lex: 1,809; sh: 1,437; asm: 471; makefile: 229
file content (27 lines) | stat: -rw-r--r-- 635 bytes parent folder | download | duplicates (19)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
#define _LARGEFILE_SOURCE
#define _LARGE_FILES
#define _FILE_OFFSET_BITS 64
#include <sys/types.h>
#include <sys/stat.h>
#include <assert.h>
#include <stdio.h>

int main( int, char **argv )
{
  // check that off_t can hold 2^63 - 1 and perform basic operations...
#define OFF_T_64 (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62))
  if (OFF_T_64 % 2147483647 != 1)
    return 1;

  // stat breaks on SCO OpenServer
  struct stat buf;
  stat( argv[0], &buf );
  if (!S_ISREG(buf.st_mode))
    return 2;

  FILE *file = fopen( argv[0], "r" );
  off_t offset = ftello( file );
  fseek( file, offset, SEEK_CUR );
  fclose( file );
  return 0;
}