Return the current position in a stream: how to use ftell : File Pointer « File « C / ANSI-C

1. C / ANSI-C
2. File
3. File Pointer

Return the current position in a stream: how to use ftell

#include <stdio.h>

int main ()
{
  FILE *file;
  long size;

  file = fopen ("my.txt","rb");
  
  if (file == NULL) 
      perror ("Error reading my.txt.");
  else {
    fseek (file, 0, SEEK_END);
    size = ftell(file);
    
    fclose (file);
    printf ("Size of my.txt is %ld bytes.\n",size);
  }
  return 0;
}


           
       

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