21 lines
682 B
Rust
21 lines
682 B
Rust
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// check-pass
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#![feature(intrinsics, staged_api, const_intrinsic_copy)]
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#![stable(feature = "core", since = "1.6.0")]
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#[stable(feature = "rust1", since = "1.0.0")]
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#[rustc_const_unstable(feature = "const_intrinsic_copy", issue = "80697")]
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#[inline]
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pub const unsafe fn copy<T>(src: *const T, dst: *mut T, count: usize) {
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extern "rust-intrinsic" {
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fn copy<T>(src: *const T, dst: *mut T, count: usize);
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}
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// Even though the `copy` intrinsic lacks stability attributes, this works, because it
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// inherits its stability attributes from its parent. That includes `rustc_const_(un)stable`
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// attributes.
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unsafe { copy(src, dst, count) }
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}
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fn main() {}
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