#include <stdio.h> int main () { FILE * pFile; long n = 0; pFile = fopen ("my.txt","rb"); if (pFile==NULL) perror ("Error opening file: my.txt"); else { while (!feof(pFile)) { fgetc (pFile); n++; } fclose (pFile); printf ("Total number of bytes in my.txt: %d\n",n); } return 0; }