{{keywords>wiki library source code example reference}}
===== ftell =====

<code c>
    long int ftell(FILE *stream);
</code>
Returns current file position for stream stream, or -1 on error.


===== C Sourcecode Example =====
<code c>
#include <stdio.h> /* including standard library */
//#include <windows.h> /* uncomment this for Windows */

 
int main( void )
{
    FILE *stream;
    int c;
 
    if((stream=fopen("test.txt","r"))==NULL) {
        printf("Cannot open file.\n");
        return 1;
      }
 
    while((c = fgetc(stream) ) != EOF) {
        printf("position of pointer in the stream is %i on character %c\n", ftell(stream), c);
    }
    fclose(stream);
    return 0;
}
</code>

=== content of test.txt ===

<code c>
Test 1234
</code>

==== output ====
    output:  ./ftell 
    position of pointer in the stream is 1 on character T
    position of pointer in the stream is 2 on character E
    position of pointer in the stream is 3 on character s
    position of pointer in the stream is 4 on character t
    position of pointer in the stream is 5 on character 
    position of pointer in the stream is 6 on character 1
    position of pointer in the stream is 7 on character 2
    position of pointer in the stream is 8 on character 3
    position of pointer in the stream is 9 on character 4