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25 lines
467 B
Rust
25 lines
467 B
Rust
// run-pass
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// Test that we use the elaborated predicates from traits
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// to satisfy const evaluatable predicates.
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#![feature(generic_const_exprs)]
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#![allow(incomplete_features)]
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use std::mem::size_of;
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trait Foo: Sized
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where
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[(); size_of::<Self>()]: Sized,
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{
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}
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impl Foo for u64 {}
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impl Foo for u32 {}
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fn foo<T: Foo>() -> [u8; size_of::<T>()] {
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[0; size_of::<T>()]
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}
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fn main() {
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assert_eq!(foo::<u32>(), [0; 4]);
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assert_eq!(foo::<u64>(), [0; 8]);
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}
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