Global in std::alloc - Rust (original) (raw)
pub struct Global;🔬This is a nightly-only experimental API. (allocator_api #32838)
Expand description
The global memory allocator.
This type implements the Allocator trait by forwarding calls to the allocator registered with the #[global_allocator] attribute if there is one, or the std crate’s default.
Note: while this type is unstable, the functionality it provides can be accessed through the free functions in alloc.
🔬This is a nightly-only experimental API. (allocator_api #32838)
Attempts to allocate a block of memory. Read more
🔬This is a nightly-only experimental API. (allocator_api #32838)
Behaves like allocate, but also ensures that the returned memory is zero-initialized. Read more
🔬This is a nightly-only experimental API. (allocator_api #32838)
Deallocates the memory referenced by ptr. Read more
🔬This is a nightly-only experimental API. (allocator_api #32838)
Attempts to extend the memory block. Read more
🔬This is a nightly-only experimental API. (allocator_api #32838)
Behaves like grow, but also ensures that the new contents are set to zero before being returned. Read more
🔬This is a nightly-only experimental API. (allocator_api #32838)
Attempts to shrink the memory block. Read more
🔬This is a nightly-only experimental API. (allocator_api #32838)
Creates a “by reference” adapter for this instance of Allocator. Read more