Guillaume Boisseau e3c0158788 Rollup merge of #120504 - kornelski:try_with_capacity, r=Amanieu ... Vec::try_with_capacity Related to #91913 Implements try_with_capacity for `Vec`, `VecDeque`, and `String`. I can follow it up with more collections if desired. `Vec::try_with_capacity()` is functionally equivalent to the current stable: ```rust let mut v = Vec::new(); v.try_reserve_exact(n)? ``` However, `try_reserve` calls non-inlined `finish_grow`, which requires old and new `Layout`, and is designed to reallocate memory. There is benefit to using `try_with_capacity`, besides syntax convenience, because it generates much smaller code at the call site with a direct call to the allocator. There's codegen test included. It's also a very desirable functionality for users of `no_global_oom_handling` (Rust-for-Linux), since it makes a very commonly used function available in that environment (`with_capacity` is used much more frequently than all `(try_)reserve(_exact)`).		2024-03-09 21:40:06 +01:00
..
binary_heap	Add rustc_confusables annotations to some stdlib APIs	2024-02-22 18:04:55 +00:00
btree	Add #[inline] to BTreeMap::new constructor	2024-03-06 19:14:03 +01:00
linked_list	s/drain_filter/extract_if/ for Vec, Btree{Map,Set} and LinkedList	2023-06-14 09:28:54 +02:00
vec_deque	try_with_capacity for Vec, VecDeque, String	2024-03-01 18:24:02 +00:00
linked_list.rs	Add rustc_confusables annotations to some stdlib APIs	2024-02-22 18:04:55 +00:00
mod.rs	Add proper cfgs	2023-11-28 09:02:34 +08:00