source: CIVL/examples/io/fscanf.cvl

/* This file is to demonstrate the file I/O function fscanf.
 * A file has unconstrained length by default. If you want to
 * specify the length of a file, you need to use the system 
 * function $textFileLength() provided by civl-stdio.cvh.
 *
 * This program has no violation.
 */
#include<civlc.cvh>
#include<stdio.h>
#include<civl-stdio.cvh>

int fooLength = $text_file_length("foo");

$assume(fooLength == 5);

void main(){
  FILE *file = fopen("foo", "r");
  int a[5];
  int i = 0;
  
  while($true){
    int count = fscanf(file, "%d", &a[i]);
    
    if(count == EOF)
      break;
    i++;
  } 
   $free(file);
}