mirror of https://github.com/rust-lang/rust
20 lines
761 B
Plaintext
20 lines
761 B
Plaintext
error[E0277]: expected a `Fn()` closure, found `extern "C" fn() {f}`
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--> $DIR/extern-wrong-value-type.rs:9:11
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LL | is_fn(f);
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| ----- ^ expected an `Fn()` closure, found `extern "C" fn() {f}`
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| required by a bound introduced by this call
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= help: the trait `Fn<()>` is not implemented for fn item `extern "C" fn() {f}`
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= note: wrap the `extern "C" fn() {f}` in a closure with no arguments: `|| { /* code */ }`
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note: required by a bound in `is_fn`
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--> $DIR/extern-wrong-value-type.rs:4:28
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LL | fn is_fn<F>(_: F) where F: Fn() {}
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| ^^^^ required by this bound in `is_fn`
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error: aborting due to 1 previous error
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For more information about this error, try `rustc --explain E0277`.
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