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12 lines
227 B
Rust
12 lines
227 B
Rust
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// Check that safe fns are not a subtype of unsafe fns.
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fn foo(x: Option<fn(i32)>) -> Option<unsafe fn(i32)> {
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x //~ ERROR mismatched types
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}
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fn bar(x: fn(i32)) -> unsafe fn(i32) {
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x // OK, coercion!
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}
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fn main() { }
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