mirror of https://github.com/rust-lang/rust
14 lines
719 B
Rust
14 lines
719 B
Rust
#![allow(incomplete_features)]
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#![feature(adt_const_params)]
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fn check(_: impl std::marker::ConstParamTy) {}
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fn main() {
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check(main); //~ error: `fn() {main}` can't be used as a const parameter type
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check(|| {}); //~ error: `{closure@$DIR/const_param_ty_bad.rs:8:11: 8:13}` can't be used as a const parameter type
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check(main as fn()); //~ error: `fn()` can't be used as a const parameter type
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check(&mut ()); //~ error: `&mut ()` can't be used as a const parameter type
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check(&mut () as *mut ()); //~ error: `*mut ()` can't be used as a const parameter type
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check(&() as *const ()); //~ error: `*const ()` can't be used as a const parameter type
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}
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