28 lines
574 B
Rust
28 lines
574 B
Rust
// This assumes the packed and non-packed structs are different sizes.
|
|
|
|
// the error points to the start of the file, not the line with the
|
|
// transmute
|
|
|
|
// error-pattern: cannot transmute between types of different sizes, or dependently-sized types
|
|
|
|
use std::mem;
|
|
|
|
#[repr(packed)]
|
|
struct Foo<T,S> {
|
|
bar: T,
|
|
baz: S
|
|
}
|
|
|
|
struct Oof<T, S> {
|
|
rab: T,
|
|
zab: S
|
|
}
|
|
|
|
fn main() {
|
|
let foo = Foo { bar: [1u8, 2, 3, 4, 5], baz: 10i32 };
|
|
unsafe {
|
|
let oof: Oof<[u8; 5], i32> = mem::transmute(foo);
|
|
println!("{:?} {:?}", &oof.rab[..], oof.zab);
|
|
}
|
|
}
|