45 lines
1.1 KiB
Rust
45 lines
1.1 KiB
Rust
//@ run-pass
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#![allow(overflowing_literals)]
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#![allow(dead_code)]
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macro_rules! check {
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($m:ident, $t:ty, $v:expr) => {{
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mod $m {
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use std::mem::size_of;
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#[derive(Copy, Clone, Debug)]
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enum E {
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V = $v,
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A = 0
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}
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static C: E = E::V;
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pub fn check() {
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assert_eq!(size_of::<E>(), size_of::<$t>());
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assert_eq!(E::V as $t, $v as $t);
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assert_eq!(C as $t, $v as $t);
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assert_eq!(format!("{:?}", E::V), "V".to_string());
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assert_eq!(format!("{:?}", C), "V".to_string());
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}
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}
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$m::check();
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}}
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}
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pub fn main() {
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check!(a, u8, 0x17);
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check!(b, u8, 0xe8);
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check!(c, u16, 0x1727);
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check!(d, u16, 0xe8d8);
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check!(e, u32, 0x17273747);
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check!(f, u32, 0xe8d8c8b8);
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check!(z, i8, 0x17);
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check!(y, i8, -0x17);
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check!(x, i16, 0x1727);
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check!(w, i16, -0x1727);
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check!(v, i32, 0x17273747);
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check!(u, i32, -0x17273747);
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enum Simple { A, B }
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assert_eq!(::std::mem::size_of::<Simple>(), 1);
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}
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