| // 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. |
| |
| |
| |
| use std::mem; |
| |
| #[repr(packed)] |
| struct S4(u8,[u8; 3]); |
| |
| #[repr(packed)] |
| struct S5(u8, u32); |
| |
| #[repr(packed)] |
| struct S13(i64, f32, u8); |
| |
| enum Foo { |
| Bar = 1, |
| Baz = 2 |
| } |
| |
| #[repr(packed)] |
| struct S3_Foo(u8, u16, Foo); |
| |
| #[repr(packed)] |
| struct S7_Option(f32, u8, u16, Option<Box<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<Box<f64>>>()); |
| } |