# 1.28.0[−][src]Module alloc::alloc

Memory allocation APIs

## Structs

AllocError | Experimental The `AllocError` error indicates an allocation failure that may be due to resource exhaustion or to something wrong when combining the given input arguments with this allocator.
Global | Experimental The global memory allocator.
Layout | Layout of a block of memory.
LayoutError | The parameters given to `Layout::from_size_align` or some other `Layout` constructor do not satisfy its documented constraints.

## Traits

Allocator | Experimental An implementation of `Allocator` can allocate, grow, shrink, and deallocate arbitrary blocks of data described via `Layout`.
GlobalAlloc | A memory allocator that can be registered as the standard library’s default through the `#[global_allocator]` attribute.

## Functions

alloc⚠ | Allocate memory with the global allocator.
alloc_zeroed⚠ | Allocate zero-initialized memory with the global allocator.
dealloc⚠ | Deallocate memory with the global allocator.
handle_alloc_error | Abort on memory allocation error or failure.
realloc⚠ | Reallocate memory with the global allocator.

## Type Definitions

LayoutErr | Deprecation planned