Module core::mem1.0.0 [−] [src]

Basic functions for dealing with memory.

This module contains functions for querying the size and alignment of types, initializing and manipulating memory.

Re-exports

pub use intrinsics::transmute;

Discriminant	Opaque type representing the discriminant of an enum.
Pin	[ Experimental ] A pinned reference.

align_of	Returns the ABI-required minimum alignment of a type.
align_of_val	Returns the ABI-required minimum alignment of the type of the value that `val` points to.
discriminant	Returns a value uniquely identifying the enum variant in `v`.
drop	Disposes of a value.
forget	Leaks a value: takes ownership and "forgets" about the value without running its destructor.
min_align_of	[ Deprecated ] Returns the ABI-required minimum alignment of a type.
min_align_of_val	[ Deprecated ] Returns the ABI-required minimum alignment of the type of the value that `val` points to.
needs_drop	Returns whether dropping values of type `T` matters.
replace	Replaces the value at a mutable location with a new one, returning the old value, without deinitializing either one.
size_of	Returns the size of a type in bytes.
size_of_val	Returns the size of the pointed-to value in bytes.
swap	Swaps the values at two mutable locations, without deinitializing either one.
transmute_copy ^⚠	Interprets `src` as having type `&U`, and then reads `src` without moving the contained value.
uninitialized ^⚠	Bypasses Rust's normal memory-initialization checks by pretending to produce a value of type `T`, while doing nothing at all.
zeroed ^⚠	Creates a value whose bytes are all zero.
unreachable ^⚠	[ Experimental ] Tells LLVM that this point in the code is not reachable, enabling further optimizations.

A wrapper to inhibit compiler from automatically calling T’s destructor.