rust/src/test/run-fail/str-overrun.rs

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// -*- rust -*-
// error-pattern:bounds check
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fn main() {
let str s = "hello";
let int x = 0;
assert (s.(x) == (0x68 as u8));
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// NB: at the moment a string always has a trailing NULL,
// so the largest index value on the string above is 5, not
// 4. Possibly change this.
// Bounds-check failure.
assert (s.(x + 6) == (0x0 as u8));
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}