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34 lines
1015 B
Rust
34 lines
1015 B
Rust
//@ [full] check-pass
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//@ revisions: full min
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#![cfg_attr(full, feature(generic_const_exprs))]
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#![cfg_attr(full, allow(incomplete_features))]
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pub struct IsLessOrEqual<const LHS: u32, const RHS: u32>;
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pub struct Condition<const CONDITION: bool>;
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pub trait True {}
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impl<const LHS: u32, const RHS: u32> True for IsLessOrEqual<LHS, RHS> where
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Condition<{ LHS <= RHS }>: True
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//[min]~^ ERROR generic parameters may not be used in const operations
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//[min]~| ERROR generic parameters may not be used in const operations
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{
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}
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impl True for Condition<true> {}
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struct S<const I: u32, const J: u32>;
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impl<const I: u32, const J: u32> S<I, J>
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where
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IsLessOrEqual<I, 8>: True,
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IsLessOrEqual<J, 8>: True,
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IsLessOrEqual<{ 8 - I }, { 8 - J }>: True,
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//[min]~^ ERROR generic parameters may not be used in const operations
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//[min]~| ERROR generic parameters may not be used in const operations
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// Condition<{ 8 - I <= 8 - J }>: True,
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{
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fn print() {
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println!("I {} J {}", I, J);
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}
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}
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fn main() {}
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