#include <stdio.h>
#include <fcntl.h>
#include <io.h>

void main( void )
{
    FILE *fp;
    long count;

    fp = fopen( "file", "rb" );
    if( fp != NULL ) {
        setmode( fileno( fp ), O_BINARY );
        count = 0L;
        while( fgetc( fp ) != EOF ) ++count;
        printf( "File contains %lu characters\n",
                count );
        fclose( fp );
    }
}