1 extern "C" {
f1(mut arg: u8)2 fn f1(mut arg: u8); //~ ERROR patterns aren't allowed in foreign function declarations
f2(&arg: u8)3 fn f2(&arg: u8); //~ ERROR patterns aren't allowed in foreign function declarations
f3(arg @ _: u8)4 fn f3(arg @ _: u8); //~ ERROR patterns aren't allowed in foreign function declarations
g1(arg: u8)5 fn g1(arg: u8); // OK
g2(_: u8)6 fn g2(_: u8); // OK
7 // fn g3(u8); // Not yet
8 }
9
10 type A1 = fn(mut arg: u8); //~ ERROR patterns aren't allowed in function pointer types
11 type A2 = fn(&arg: u8); //~ ERROR patterns aren't allowed in function pointer types
12 type B1 = fn(arg: u8); // OK
13 type B2 = fn(_: u8); // OK
14 type B3 = fn(u8); // OK
15
main()16 fn main() {}
17