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// Copyright 2017 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.
// no-prefer-dynamic
#![feature(allocator_api)]
#![crate_type = "rlib"]
use std::alloc::{GlobalAlloc, System, Layout};
use std::sync::atomic::{AtomicUsize, Ordering};
pub struct A(pub AtomicUsize);
unsafe impl GlobalAlloc for A {
unsafe fn alloc(&self, layout: Layout) -> *mut u8 {
self.0.fetch_add(1, Ordering::SeqCst);
System.alloc(layout)
}
unsafe fn dealloc(&self, ptr: *mut u8, layout: Layout) {
self.0.fetch_add(1, Ordering::SeqCst);
System.dealloc(ptr, layout)
}
}
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