rust/src/test/compile-fail/tstate-while-loop-unsat-constriants.rs
Niko Matsakis 0d3811e275 improve liveness so it reports unused vars / dead assignments
doesn't warn about pattern bindings yet though
2012-05-24 09:52:16 -07:00

17 lines
352 B
Rust

// error-pattern:unsatisfied precondition constraint (for example, even(y
fn print_even(y: int) : even(y) { log(debug, y); }
pure fn even(y: int) -> bool { true }
fn main() {
let mut y: int = 42;
let mut x: int = 1;
check (even(y));
loop {
print_even(y);
while true { while true { while true { y += x; } } }
}
}