// This test checks that `VecDeque::front[_mut]()` and `VecDeque::back[_mut]()` can't panic. | |
// compile-flags: -O | |
// ignore-debug: the debug assertions get in the way | |
#![crate_type = "lib"] | |
use std::collections::VecDeque; | |
// CHECK-LABEL: @dont_panic | |
#[no_mangle] | |
pub fn dont_panic(v: &mut VecDeque<usize>) { | |
// CHECK-NOT: expect | |
// CHECK-NOT: panic | |
v.front(); | |
v.front_mut(); | |
v.back(); | |
v.back_mut(); | |
} |