47 lines
1.2 KiB
Rust
47 lines
1.2 KiB
Rust
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// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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use std::sync::atomic::{Ordering, AtomicUsize};
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use std::mem;
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struct S<U,V> {
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_u: U,
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size_of_u: usize,
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_v: V,
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size_of_v: usize
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}
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impl<U, V> S<U, V> {
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fn new(u: U, v: V) -> Self {
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S {
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_u: u,
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size_of_u: mem::size_of::<U>(),
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_v: v,
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size_of_v: mem::size_of::<V>()
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}
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}
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}
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static COUNT: AtomicUsize = AtomicUsize::new(0);
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impl<V, U> Drop for S<U, V> {
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fn drop(&mut self) {
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assert_eq!(mem::size_of::<U>(), self.size_of_u);
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assert_eq!(mem::size_of::<V>(), self.size_of_v);
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COUNT.store(COUNT.load(Ordering::SeqCst)+1, Ordering::SeqCst);
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}
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}
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fn main() {
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assert_eq!(COUNT.load(Ordering::SeqCst), 0);
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{ S::new(0u8, 1u16); }
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assert_eq!(COUNT.load(Ordering::SeqCst), 1);
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}
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