2018-08-08 14:28:26 +02:00
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error[E0308]: mismatched types
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2018-12-25 08:56:47 -07:00
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--> $DIR/unsafe-subtyping.rs:4:5
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2018-08-08 14:28:26 +02:00
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LL | fn foo(x: Option<fn(i32)>) -> Option<unsafe fn(i32)> {
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| ---------------------- expected `std::option::Option<unsafe fn(i32)>` because of return type
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LL | x //~ ERROR mismatched types
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| ^ expected unsafe fn, found normal fn
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= note: expected type `std::option::Option<unsafe fn(i32)>`
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found type `std::option::Option<fn(i32)>`
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error: aborting due to previous error
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For more information about this error, try `rustc --explain E0308`.
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