rust/src/test/run-pass/packed-tuple-struct-size.rs
Alex Crichton ade807c6dc rustc: Obsolete the @ syntax entirely
This removes all remnants of `@` pointers from rustc. Additionally, this removes
the `GC` structure from the prelude as it seems odd exporting an experimental
type in the prelude by default.

Closes #14193
[breaking-change]
2014-06-14 10:45:37 -07:00

49 lines
1.1 KiB
Rust

// Copyright 2013 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
#![feature(managed_boxes)]
use std::gc::Gc;
use std::mem;
#[packed]
struct S4(u8,[u8, .. 3]);
#[packed]
struct S5(u8, u32);
#[packed]
struct S13(i64, f32, u8);
enum Foo {
Bar = 1,
Baz = 2
}
#[packed]
struct S3_Foo(u8, u16, Foo);
#[packed]
struct S7_Option(f32, u8, u16, Option<Gc<f64>>);
pub fn main() {
assert_eq!(mem::size_of::<S4>(), 4);
assert_eq!(mem::size_of::<S5>(), 5);
assert_eq!(mem::size_of::<S13>(), 13);
assert_eq!(mem::size_of::<S3_Foo>(),
3 + mem::size_of::<Foo>());
assert_eq!(mem::size_of::<S7_Option>(),
7 + mem::size_of::<Option<Gc<f64>>>());
}