/**
 Loops/Nested in Neko
 Tectonics:
   nekoc loops-nested.neko
   neko loops-nested.neko
*/

var random = $loader.loadprim("std@random_new", 0)();
var random_int = $loader.loadprim("std@random_int", 2);

var values = $amake(10);
var row = 0;
var col = 0;

while row < 10 {
  values[row] = $amake(10);
  col = 0;
  while col < 10 {
    values[row][col] = random_int(random, 20) + 1;
    col += 1;
  }
  row += 1;
}

/* Look for a 20 */
/*
 To break out of nested loops, (without using labels and $goto),
   Neko needs the value of the inner loop(s).
 The break statement sets the return value of a loop expression.
 Without a break, the value of a loop expression is unspecified.
*/
var inner;
row = 0;
while row < 10 {
  col = 0;
  inner = while col < 10 {
    $print("values[", row, "][", col, "] = ", values[row][col], "\n");
    if values[row][col] == 20 break true;
    col += 1;
  }
  if $istrue(inner) break;
  row += 1;
}