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TypeLayout

Struct TypeLayout 

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pub struct TypeLayout {
    pub size_bits: u64,
    pub field_alignment_bits: u64,
    pub pointer_alignment_bits: u64,
    pub required_alignment_bits: u64,
}
Expand description

The computed layout of a type.

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§size_bits: u64

The size of the type in bits.

This is the value returned by sizeof and C and std::mem::size_of in Rust (but in bits instead of bytes). This is a multiple of pointer_alignment_bits.

§field_alignment_bits: u64

The alignment of the type, in bits, when used as a field in a record.

This is usually the value returned by _Alignof in C, but there are some edge cases in GCC where _Alignof returns a smaller value.

§pointer_alignment_bits: u64

The alignment, in bits, of valid pointers to this type.

This is the value returned by std::mem::align_of in Rust (but in bits instead of bytes). size_bits is a multiple of this value.

§required_alignment_bits: u64

The required alignment of the type in bits.

This value is only used by MSVC targets. It is 8 on all other targets. On MSVC targets, this value restricts the effects of #pragma pack except in some cases involving bit-fields.

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impl Clone for TypeLayout

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fn clone(&self) -> TypeLayout

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl Copy for TypeLayout

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impl Debug for TypeLayout

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

Formats the value using the given formatter. Read more
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impl Default for TypeLayout

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fn default() -> TypeLayout

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

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impl Into<()> for TypeLayout

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fn into(self)

Converts this type into the (usually inferred) input type.
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impl Layout for TypeLayout

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type TypeLayout = TypeLayout

The type used to encode the layout of the type itself.
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type FieldLayout = FieldLayout

The type used to encode the layout of a field in a record.
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type OpaqueLayout = TypeLayout

The type used to encode the layout of an opaque type.
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impl PartialEq for TypeLayout

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

Equality operator ==. Read more
1.0.0 (const: unstable) · Source§

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

Inequality operator !=. Read more
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impl StructuralPartialEq for TypeLayout

Auto Trait Implementations§

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.