rust/tests/compile-fail/fn_ptr_offset.rs

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2017-06-21 23:54:42 -05:00
use std::mem;
fn f() {}
fn main() {
let x : fn() = f;
let y : *mut u8 = unsafe { mem::transmute(x) };
let y = y.wrapping_offset(1);
let x : fn() = unsafe { mem::transmute(y) };
x(); //~ ERROR: tried to use an integer pointer or a dangling pointer as a function pointer
}