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Add a debug_assert to Vec::set_len

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Scott McMurray 2018-12-14 21:41:18 -08:00
parent a16e1a781d
commit 1fd971c3b9
1 changed files with 2 additions and 0 deletions
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2
src/liballoc/vec.rs
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@ -819,6 +819,8 @@ impl<T> Vec<T> {
#[inline] #[inline]
#[stable(feature = "rust1", since = "1.0.0")] #[stable(feature = "rust1", since = "1.0.0")]
pub unsafe fn set_len(&mut self, new_len: usize) { pub unsafe fn set_len(&mut self, new_len: usize) {
debug_assert!(new_len <= self.capacity());
self.len = new_len; self.len = new_len;
} }