55 lines
843 B
Rust
55 lines
843 B
Rust
//ignore-windows: Uses POSIX APIs
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#![feature(rustc_private)]
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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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#[allow(dead_code)]
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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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#[allow(dead_code)]
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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 mut 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 mut 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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