src/tools/miri/tests/run-pass/rust-lang-org.rs

   1 // This code is editable and runnable!
   2 fn main() {
   3     // A simple integer calculator:
   4     // `+` or `-` means add or subtract by 1
   5     // `*` or `/` means multiply or divide by 2
   6
   7     let program = "+ + * - /";
   8     let mut accumulator = 0;
   9
  10     for token in program.chars() {
  11         match token {
  12             '+' => accumulator += 1,
  13             '-' => accumulator -= 1,
  14             '*' => accumulator *= 2,
  15             '/' => accumulator /= 2,
  16             _ => { /* ignore everything else */ }
  17         }
  18     }
  19
  20     assert_eq!(accumulator, 1);
  21 }