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error: incorrect function inside `extern` block
--> $DIR/extern-ffi-fn-with-body.rs:2:8
|
LL | extern "C" {
| ---------- `extern` blocks define existing foreign functions and functions inside of them cannot have a body
LL | fn foo() -> i32 {
| ________^^^__________-
| | |
| | cannot have a body
LL | | return 0;
LL | | }
| |_____- help: remove the invalid body: `;`
|
= help: you might have meant to write a function accessible through FFI, which can be done by writing `extern fn` outside of the `extern` block
= note: for more information, visit https://doc.rust-lang.org/std/keyword.extern.html
error: aborting due to 1 previous error
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