rust/tests/compile-fail/cast_fn_ptr.rs

fn main() {
    fn f() {}

    let g = unsafe {
        std::mem::transmute::<fn(), fn(i32)>(f)
    };

    g(42) //~ ERROR constant evaluation error
    //~^ NOTE tried to call a function with sig fn() through a function pointer of type fn(i32)
}
Update for changes in rustc. 2016-08-27 02:44:46 -05:00			`fn main() {`
forbid calling functions through pointers of a different type 2016-06-14 03:34:54 -05:00			`fn f() {}`

change the block and stmt position after a function call returns previously we moved to the target block before calling a function, so when inspecting the stack, it appeared as if we were in the first statement of the next block. 2016-07-06 10:55:05 -05:00			`let g = unsafe {`
forbid calling functions through pointers of a different type 2016-06-14 03:34:54 -05:00			`std::mem::transmute::<fn(), fn(i32)>(f)`
			`};`

make sure we show error messages even when we cannot show span 2018-07-15 04:21:56 -05:00			`g(42) //~ ERROR constant evaluation error`
Convert some of the tests to the new format 2018-05-09 10:45:16 -05:00			`//~^ NOTE tried to call a function with sig fn() through a function pointer of type fn(i32)`
forbid calling functions through pointers of a different type 2016-06-14 03:34:54 -05:00			`}`