Struct GlobalAllocatorWrapper 

pub struct GlobalAllocatorWrapper;

A wrapper for the global allocator that implements the GlobalAlloc trait.

Trait Implementations

impl GlobalAlloc for GlobalAllocatorWrapper

unsafe fn alloc(&self, layout: Layout) -> *mut u8

Allocates memory from the global bump allocator.

Safety

This function is unsafe because it involves raw pointer manipulation.

Parameters

• layout: The layout of the memory to be allocated.

Returns

A pointer to the allocated memory.

unsafe fn dealloc(&self, ptr: *mut u8, layout: Layout)

Deallocates a previously allocated block of memory in the global allocator.

Safety

This function is unsafe because it involves raw pointer manipulation.

Parameters

• ptr: A pointer to the memory to be deallocated.
• layout: The layout of the memory to be deallocated.

unsafe fn alloc_zeroed(&self, layout: Layout) -> *mut u8

Behaves like alloc, but also ensures that the contents are set to zero before being returned.

unsafe fn realloc( &self, ptr: *mut u8, layout: Layout, new_size: usize, ) -> *mut u8

Shrinks or grows a block of memory to the given new_size in bytes. The block is described by the given ptr pointer and layout.