例如,使用jemalloc内存分配器来分配内存,如下这样设置之后,使用Box::new()分配的内存就是jemalloc分配出来的了 usejemallocator::Jemalloc;#[global_allocator]staticGLOBAL:Jemalloc=Jemalloc;fnmain(){} 如果想使用自己写的全局分配器,可以实现GlobalAlloc trait,它和Allocator trait的区别,主要在于是否允许分配长度为零的...
Of course, you can still download and install the VSIX from GitHub Releases. Fixes #17203fix OOM caused by term search. #17227hash file contents to verify it actually changed. #17225interleave function-like and attribute macro expansion in "Expand macro recursively". #17220improve confusing litera...
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Rust is in the process of formalizing better support for fallible allocations, with anexperimental allocator in nightlyallowingfailed allocationsto be handled by the implementation. There is also the unstable cfg flag foralloccalledno_global_oom_handlingwhich removes the infallible methods, ensuring they...
@@ -3209,7 +3209,7 @@ impl<T, A: Allocator> From<Box<[T], A>> for Vec<T, A> { } } // note: test pulls in libstd, which causes errors here // note: test pulls in std, which causes errors here #[cfg(not(no_global_oom_handling))] #[cfg(not(test))] #[stable(featur...
#[cfg(not(no_global_oom_handling))] @@ -483,7 +477,11 @@ impl<A: Allocator> RawVecInner<A> { // Allocators currently return a `NonNull<[u8]>` whose length // matches the size requested. If that ever changes, the capacity // here should change to `ptr.len() / mem::size_...
not(no_global_oom_handling), not(no_rc), not(no_sync), target_has_atomic = "ptr" ))] #![no_std] #![needs_allocator] // To run alloc tests without x.py without ending up with two copies of alloc, Miri needs to be // able to "empty" this crate. See <https://github.com...
#![cfg_attr(not(no_global_oom_handling), feature(alloc_c_string))] #![feature(alloc_layout_extra)] #![feature(allocator_api)] #![feature(array_chunks)] #![feature(array_into_iter_constructors)] #![feature(array_methods)] #![feature(array_windows)] #![feature(assert_matches)] #!