Struct alloc::alloc::Global[][src]

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.

Trait Implementations

🔬 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” adaptor for this instance of Allocator. Read more

Returns a copy of the value. Read more

Performs copy-assignment from source. Read more

Formats the value using the given formatter. Read more

Returns the “default value” for a type. Read more

Auto Trait Implementations

Blanket Implementations

Gets the TypeId of self. Read more

Immutably borrows from an owned value. Read more

Mutably borrows from an owned value. Read more

Performs the conversion.

Performs the conversion.

The resulting type after obtaining ownership.

Creates owned data from borrowed data, usually by cloning. Read more

🔬 This is a nightly-only experimental API. (toowned_clone_into #41263)

recently added

Uses borrowed data to replace owned data, usually by cloning. Read more

The type returned in the event of a conversion error.

Performs the conversion.

The type returned in the event of a conversion error.

Performs the conversion.