64 lines
1.2 KiB
Rust
64 lines
1.2 KiB
Rust
// Copyright 2012 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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// pretty-expanded FIXME #23616
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#![feature(libc)]
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#![allow(dead_code)]
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extern crate libc;
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use std::mem;
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struct Arena(());
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struct Bcx<'a> {
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fcx: &'a Fcx<'a>
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}
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struct Fcx<'a> {
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arena: &'a Arena,
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ccx: &'a Ccx
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}
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struct Ccx {
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x: isize
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}
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fn alloc<'a>(_bcx : &'a Arena) -> &'a Bcx<'a> {
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unsafe {
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mem::transmute(libc::malloc(mem::size_of::<Bcx<'a>>()
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as libc::size_t))
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}
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}
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fn h<'a>(bcx : &'a Bcx<'a>) -> &'a Bcx<'a> {
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return alloc(bcx.fcx.arena);
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}
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fn g(fcx : &Fcx) {
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let bcx = Bcx { fcx: fcx };
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let bcx2 = h(&bcx);
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unsafe {
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libc::free(mem::transmute(bcx2));
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}
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}
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fn f(ccx : &Ccx) {
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let a = Arena(());
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let fcx = Fcx { arena: &a, ccx: ccx };
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return g(&fcx);
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}
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pub fn main() {
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let ccx = Ccx { x: 0 };
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f(&ccx);
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}
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