56 lines
2.2 KiB
Rust
56 lines
2.2 KiB
Rust
use crate::simd::SimdElement;
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/// Supporting trait for `Simd::cast`. Typically doesn't need to be used directly.
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///
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/// # Safety
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/// Implementing this trait asserts that the type is a valid vector element for the `simd_cast` or
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/// `simd_as` intrinsics.
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pub unsafe trait SimdCast: SimdElement {}
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// Safety: primitive number types can be cast to other primitive number types
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unsafe impl SimdCast for i8 {}
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// Safety: primitive number types can be cast to other primitive number types
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unsafe impl SimdCast for i16 {}
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// Safety: primitive number types can be cast to other primitive number types
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unsafe impl SimdCast for i32 {}
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// Safety: primitive number types can be cast to other primitive number types
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unsafe impl SimdCast for i64 {}
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// Safety: primitive number types can be cast to other primitive number types
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unsafe impl SimdCast for isize {}
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// Safety: primitive number types can be cast to other primitive number types
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unsafe impl SimdCast for u8 {}
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// Safety: primitive number types can be cast to other primitive number types
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unsafe impl SimdCast for u16 {}
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// Safety: primitive number types can be cast to other primitive number types
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unsafe impl SimdCast for u32 {}
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// Safety: primitive number types can be cast to other primitive number types
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unsafe impl SimdCast for u64 {}
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// Safety: primitive number types can be cast to other primitive number types
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unsafe impl SimdCast for usize {}
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// Safety: primitive number types can be cast to other primitive number types
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unsafe impl SimdCast for f32 {}
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// Safety: primitive number types can be cast to other primitive number types
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unsafe impl SimdCast for f64 {}
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/// Supporting trait for `Simd::cast_ptr`. Typically doesn't need to be used directly.
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///
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/// # Safety
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/// Implementing this trait asserts that the type is a valid vector element for the `simd_cast_ptr`
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/// intrinsic.
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pub unsafe trait SimdCastPtr<T> {}
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// Safety: pointers can be cast to other pointer types
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unsafe impl<T, U> SimdCastPtr<T> for *const U
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where
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U: core::ptr::Pointee,
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T: core::ptr::Pointee<Metadata = U::Metadata>,
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{
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}
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// Safety: pointers can be cast to other pointer types
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unsafe impl<T, U> SimdCastPtr<T> for *mut U
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where
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U: core::ptr::Pointee,
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T: core::ptr::Pointee<Metadata = U::Metadata>,
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{
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}
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