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mark constructor of BinaryHeap as const fn

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coekjan 2023-10-28 21:30:43 +08:00
parent 615d0f2400
commit 4dd7568a97
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1 changed files with 4 additions and 2 deletions
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6
library/alloc/src/collections/binary_heap/mod.rs
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@ -434,8 +434,9 @@ impl<T: Ord> BinaryHeap<T> {
/// heap.push(4);
/// ```
#[stable(feature = "rust1", since = "1.0.0")]
#[rustc_const_unstable(feature = "const_binary_heap_constructor", issue = "112353")]
#[must_use]
pub fn new() -> BinaryHeap<T> {
pub const fn new() -> BinaryHeap<T> {
BinaryHeap { data: vec![] }
}
@ -477,8 +478,9 @@ impl<T: Ord, A: Allocator> BinaryHeap<T, A> {
/// heap.push(4);
/// ```
#[unstable(feature = "allocator_api", issue = "32838")]
#[rustc_const_unstable(feature = "const_binary_heap_constructor", issue = "112353")]
#[must_use]
pub fn new_in(alloc: A) -> BinaryHeap<T, A> {
pub const fn new_in(alloc: A) -> BinaryHeap<T, A> {
BinaryHeap { data: Vec::new_in(alloc) }
}