extern fns require named parameters

durka · durka · commit fae33352721c · 2016-07-27T13:58:51.000-04:00
Not sure the example is going to stay, but I can try to pass Travis for the bragging rights.
diff --git a/src/doc/book/ffi.md b/src/doc/book/ffi.md
@@ -600,7 +600,7 @@ use std::os::raw::c_int;
 
 extern "C" {
     /// Register the callback.
-    fn register(Option<extern "C" fn(Option<extern "C" fn(c_int) -> c_int>, c_int) -> c_int>);
+    fn register(cb: Option<extern "C" fn(Option<extern "C" fn(c_int) -> c_int>, c_int) -> c_int>);
 }
 
 /// This fairly useless function receives a function pointer and an integer

Original file line number	Diff line number	Diff line change
`@@ -600,7 +600,7 @@ use std::os::raw::c_int;`
`600`	`600`
`601`	`601`	`extern "C" {`
`602`	`602`	`/// Register the callback.`
`603`		`- fn register(Option<extern "C" fn(Option<extern "C" fn(c_int) -> c_int>, c_int) -> c_int>);`
	`603`	`+ fn register(cb: Option<extern "C" fn(Option<extern "C" fn(c_int) -> c_int>, c_int) -> c_int>);`
`604`	`604`	`}`
`605`	`605`
`606`	`606`	`/// This fairly useless function receives a function pointer and an integer`