🔬 This is a nightly-only experimental API. (
allocator_api #32838)
The global memory allocator.
This type implements the Alloc trait by forwarding calls
to the allocator registered with the #[global_allocator] attribute
if there is one, or the std crate’s default.
Formats the value using the given formatter. Read more
Performs copy-assignment from source. Read more
🔬 This is a nightly-only experimental API. (
allocator_api #32838)
Returns a pointer meeting the size and alignment guarantees of layout. Read more
🔬 This is a nightly-only experimental API. (
allocator_api #32838)
Deallocate the memory referenced by ptr. Read more
🔬 This is a nightly-only experimental API. (
allocator_api #32838)
Returns a pointer suitable for holding data described by a new layout with layout’s alginment and a size given by new_size. To accomplish this, this may extend or shrink the allocation referenced by ptr to fit the new layout. Read more
🔬 This is a nightly-only experimental API. (
allocator_api #32838)
Behaves like alloc, but also ensures that the contents are set to zero before being returned. Read more
🔬 This is a nightly-only experimental API. (
allocator_api #32838)
Returns bounds on the guaranteed usable size of a successful allocation created with the specified layout. Read more
🔬 This is a nightly-only experimental API. (
allocator_api #32838)
Behaves like alloc, but also returns the whole size of the returned block. For some layout inputs, like arrays, this may include extra storage usable for additional data. Read more
🔬 This is a nightly-only experimental API. (
allocator_api #32838)
Behaves like realloc, but also returns the whole size of the returned block. For some layout inputs, like arrays, this may include extra storage usable for additional data. Read more
🔬 This is a nightly-only experimental API. (
allocator_api #32838)
Attempts to extend the allocation referenced by ptr to fit new_size. Read more
🔬 This is a nightly-only experimental API. (
allocator_api #32838)
Attempts to shrink the allocation referenced by ptr to fit new_size. Read more
🔬 This is a nightly-only experimental API. (
allocator_api #32838)
Allocates a block suitable for holding an instance of T. Read more
🔬 This is a nightly-only experimental API. (
allocator_api #32838)
Deallocates a block suitable for holding an instance of T. Read more
🔬 This is a nightly-only experimental API. (
allocator_api #32838)
Allocates a block suitable for holding n instances of T. Read more
🔬 This is a nightly-only experimental API. (
allocator_api #32838)
Reallocates a block previously suitable for holding n_old instances of T, returning a block suitable for holding n_new instances of T. Read more
🔬 This is a nightly-only experimental API. (
allocator_api #32838)
Deallocates a block suitable for holding n instances of T. Read more
Returns the "default value" for a type. Read more