Expand description
Basic functions for dealing with memory.
This module contains functions for querying the size and alignment of types, initializing and manipulating memory.
Macros§
- Expands to the offset in bytes of a field from the beginning of the given type.
Structs§
- Opaque type representing the discriminant of an enum.
- A wrapper to inhibit the compiler from automatically calling
T’s destructor. This wrapper is 0-cost. - Assume
Experimental Configurable proof assumptions ofTransmuteFrom.
Traits§
- Transmute
From Experimental Marks thatSrcis transmutable intoSelf.
Functions§
- Returns the ABI-required minimum alignment of a type in bytes.
- Returns the ABI-required minimum alignment of the type of the value that
valpoints to in bytes. - Returns a value uniquely identifying the enum variant in
v. - Disposes of 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 in bytes. - min_
align_ of_ val Deprecated Returns the ABI-required minimum alignment of the type of the value thatvalpoints to in bytes. - Returns
trueif dropping values of typeTmatters. - Moves
srcinto the referenceddest, returning the previousdestvalue. - Returns the size of a type in bytes.
- Returns the size of the pointed-to value in bytes.
- Swaps the values at two mutable locations, without deinitializing either one.
- Replaces
destwith the default value ofT, returning the previousdestvalue. - Reinterprets the bits of a value of one type as another type.
- Interprets
srcas having type&Dst, and then readssrcwithout moving the contained value. - uninitialized⚠
Deprecated Bypasses Rust’s normal memory-initialization checks by pretending to produce a value of typeT, while doing nothing at all. - Returns the value of type
Trepresented by the all-zero byte-pattern. - align_
of_ ⚠val_ raw Experimental Returns the ABI-required minimum alignment of the type of the value thatvalpoints to in bytes. - copy
Experimental Bitwise-copies a value. - forget_
unsized Experimental Likeforget, but also accepts unsized values. - size_
of_ ⚠val_ raw Experimental Returns the size of the pointed-to value in bytes. - variant_
count Experimental Returns the number of variants in the enum typeT.
Unions§
- A wrapper type to construct uninitialized instances of
T.