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Module std::ptr

Raw, unsafe pointers, *const T, and *mut T.

See also the pointer primitive types.

Structs

Shared [
Experimental
]

A wrapper around a raw *mut T that indicates that the possessor of this wrapper has shared ownership of the referent. Useful for building abstractions like Rc<T>, Arc<T>, or doubly-linked lists, which internally use aliased raw pointers to manage the memory that they own.
Unique [
Experimental
]

A wrapper around a raw non-null *mut T that indicates that the possessor of this wrapper owns the referent. Useful for building abstractions like Box<T>, Vec<T>, String, and HashMap<K, V>.

Functions

copy⚠

Copies count * size_of<T> bytes from src to dst. The source and destination may overlap.
copy_nonoverlapping⚠

Copies count * size_of<T> bytes from src to dst. The source and destination may not overlap.
drop_in_place⚠

Executes the destructor (if any) of the pointed-to value.
eq

Compare raw pointers for equality.
null

Creates a null raw pointer.
null_mut

Creates a null mutable raw pointer.
read⚠

Reads the value from src without moving it. This leaves the memory in src unchanged.
read_unaligned⚠

Reads the value from src without moving it. This leaves the memory in src unchanged.
read_volatile⚠

Performs a volatile read of the value from src without moving it. This leaves the memory in src unchanged.
replace⚠

Replaces the value at dest with src, returning the old value, without dropping either.
swap⚠

Swaps the values at two mutable locations of the same type, without deinitializing either. They may overlap, unlike mem::swap which is otherwise equivalent.
write⚠

Overwrites a memory location with the given value without reading or dropping the old value.
write_bytes⚠

Invokes memset on the specified pointer, setting count * size_of::<T>() bytes of memory starting at dst to val.
write_unaligned⚠

Overwrites a memory location with the given value without reading or dropping the old value.
write_volatile⚠

Performs a volatile write of a memory location with the given value without reading or dropping the old value.
swap_nonoverlapping⚠ [
Experimental
]

Swaps a sequence of values at two mutable locations of the same type.

© 2010 The Rust Project Developers
Licensed under the Apache License, Version 2.0 or the MIT license, at your option.
https://doc.rust-lang.org/std/ptr/index.html