wasmtime_environ::__core::simd::prelude

Trait SimdConstPtr

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pub trait SimdConstPtr: Copy + Sealed {
    type Usize;
    type Isize;
    type CastPtr<T>;
    type MutPtr;
    type Mask;

    // Required methods
    fn is_null(self) -> Self::Mask;
    fn cast<T>(self) -> Self::CastPtr<T>;
    fn cast_mut(self) -> Self::MutPtr;
    fn addr(self) -> Self::Usize;
    fn with_addr(self, addr: Self::Usize) -> Self;
    fn expose_provenance(self) -> Self::Usize;
    fn with_exposed_provenance(addr: Self::Usize) -> Self;
    fn wrapping_offset(self, offset: Self::Isize) -> Self;
    fn wrapping_add(self, count: Self::Usize) -> Self;
    fn wrapping_sub(self, count: Self::Usize) -> Self;
}
🔬This is a nightly-only experimental API. (portable_simd)
Expand description

Operations on SIMD vectors of constant pointers.

Required Associated Types§

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type Usize

🔬This is a nightly-only experimental API. (portable_simd)

Vector of usize with the same number of elements.

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type Isize

🔬This is a nightly-only experimental API. (portable_simd)

Vector of isize with the same number of elements.

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type CastPtr<T>

🔬This is a nightly-only experimental API. (portable_simd)

Vector of const pointers with the same number of elements.

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type MutPtr

🔬This is a nightly-only experimental API. (portable_simd)

Vector of mutable pointers to the same type.

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type Mask

🔬This is a nightly-only experimental API. (portable_simd)

Mask type used for manipulating this SIMD vector type.

Required Methods§

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fn is_null(self) -> Self::Mask

🔬This is a nightly-only experimental API. (portable_simd)

Returns true for each element that is null.

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fn cast<T>(self) -> Self::CastPtr<T>

🔬This is a nightly-only experimental API. (portable_simd)

Casts to a pointer of another type.

Equivalent to calling pointer::cast on each element.

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fn cast_mut(self) -> Self::MutPtr

🔬This is a nightly-only experimental API. (portable_simd)

Changes constness without changing the type.

Equivalent to calling pointer::cast_mut on each element.

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fn addr(self) -> Self::Usize

🔬This is a nightly-only experimental API. (portable_simd)

Gets the “address” portion of the pointer.

This method discards pointer semantic metadata, so the result cannot be directly cast into a valid pointer.

This method semantically discards provenance and address-space information. To properly restore that information, use Self::with_addr.

Equivalent to calling pointer::addr on each element.

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fn with_addr(self, addr: Self::Usize) -> Self

🔬This is a nightly-only experimental API. (portable_simd)

Creates a new pointer with the given address.

This performs the same operation as a cast, but copies the address-space and provenance of self to the new pointer.

Equivalent to calling pointer::with_addr on each element.

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fn expose_provenance(self) -> Self::Usize

🔬This is a nightly-only experimental API. (portable_simd)

Exposes the “provenance” part of the pointer for future use in Self::with_exposed_provenance and returns the “address” portion.

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fn with_exposed_provenance(addr: Self::Usize) -> Self

🔬This is a nightly-only experimental API. (portable_simd)

Converts an address back to a pointer, picking up a previously “exposed” provenance.

Equivalent to calling core::ptr::with_exposed_provenance on each element.

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fn wrapping_offset(self, offset: Self::Isize) -> Self

🔬This is a nightly-only experimental API. (portable_simd)

Calculates the offset from a pointer using wrapping arithmetic.

Equivalent to calling pointer::wrapping_offset on each element.

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fn wrapping_add(self, count: Self::Usize) -> Self

🔬This is a nightly-only experimental API. (portable_simd)

Calculates the offset from a pointer using wrapping arithmetic.

Equivalent to calling pointer::wrapping_add on each element.

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fn wrapping_sub(self, count: Self::Usize) -> Self

🔬This is a nightly-only experimental API. (portable_simd)

Calculates the offset from a pointer using wrapping arithmetic.

Equivalent to calling pointer::wrapping_sub on each element.

Object Safety§

This trait is not object safe.

Implementors§