bjoernager/rust
bjoernager/rust
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add max value from iterator

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This commit is contained in:
Matthew Piziak 2016-11-02 10:11:53 -04:00
parent dd6e8c5f18
commit 8f19d5c3f6
2 changed files with 4 additions and 0 deletions
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2
src/test/run-pass/iter-step-overflow-debug.rs
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@ -15,12 +15,14 @@ use std::panic;
fn main() { fn main() {
let r = panic::catch_unwind(|| { let r = panic::catch_unwind(|| {
let mut it = u8::max_value()..; let mut it = u8::max_value()..;
it.next().unwrap(); // 255
it.next().unwrap(); it.next().unwrap();
}); });
assert!(r.is_err()); assert!(r.is_err());
let r = panic::catch_unwind(|| { let r = panic::catch_unwind(|| {
let mut it = i8::max_value()..; let mut it = i8::max_value()..;
it.next().unwrap(); // 127
it.next().unwrap(); it.next().unwrap();
}); });
assert!(r.is_err()); assert!(r.is_err());

2
src/test/run-pass/iter-step-overflow-ndebug.rs
View file

@ -12,8 +12,10 @@
fn main() { fn main() {
let mut it = u8::max_value()..; let mut it = u8::max_value()..;
assert_eq!(it.next().unwrap(), 255);
assert_eq!(it.next().unwrap(), u8::min_value()); assert_eq!(it.next().unwrap(), u8::min_value());
let mut it = i8::max_value()..; let mut it = i8::max_value()..;
assert_eq!(it.next().unwrap(), 127);
assert_eq!(it.next().unwrap(), i8::min_value()); assert_eq!(it.next().unwrap(), i8::min_value());
} }