Struct AbiAndPrefAlign

pub struct AbiAndPrefAlign {
    pub abi: Align,
    pub pref: Align,
}

A pair of alignments, ABI-mandated and preferred.

The “preferred” alignment is an LLVM concept that is virtually meaningless to Rust code: it is not exposed semantically to programmers nor can they meaningfully affect it. The only concern for us is that preferred alignment must not be less than the mandated alignment and thus in practice the two values are almost always identical.

An example of a rare thing actually affected by preferred alignment is aligning of statics. It is of effectively no consequence for layout in structs and on the stack.

Fields

abi: Align

pref: Align

Implementations

impl AbiAndPrefAlign

pub fn new(align: Align) -> AbiAndPrefAlign

pub fn min(self, other: AbiAndPrefAlign) -> AbiAndPrefAlign

pub fn max(self, other: AbiAndPrefAlign) -> AbiAndPrefAlign

Trait Implementations

impl Clone for AbiAndPrefAlign

fn clone(&self) -> AbiAndPrefAlign

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for AbiAndPrefAlign

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Hash for AbiAndPrefAlign

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl<__CTX> HashStable<__CTX> for AbiAndPrefAlign

where __CTX: HashStableContext,

fn hash_stable(&self, __hcx: &mut __CTX, __hasher: &mut StableHasher)

impl PartialEq for AbiAndPrefAlign

fn eq(&self, other: &AbiAndPrefAlign) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for AbiAndPrefAlign

impl Eq for AbiAndPrefAlign

impl StructuralPartialEq for AbiAndPrefAlign

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 2 bytes