31 lines
534 B
Rust
31 lines
534 B
Rust
#![feature(const_type_id)]
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#![feature(generic_const_exprs)]
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#![feature(core_intrinsics)]
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#![allow(incomplete_features)]
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use std::any::TypeId;
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struct If<const B: bool>;
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pub trait True {}
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impl True for If<true> {}
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fn consume<T: 'static>(_val: T)
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where
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If<{ TypeId::of::<T>() != TypeId::of::<()>() }>: True,
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//~^ ERROR: can't compare
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{
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}
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fn test<T: 'static>()
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where
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If<{ TypeId::of::<T>() != TypeId::of::<()>() }>: True,
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//~^ ERROR: can't compare
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{
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}
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fn main() {
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let a = ();
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consume(0i32);
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consume(a);
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}
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