50 lines
1.5 KiB
Rust
50 lines
1.5 KiB
Rust
// Copyright 2013-2014 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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// NOTE Instantiating an empty enum is UB. This test may break in the future.
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// LLDB can't handle zero-sized values
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// ignore-lldb
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// compile-flags:-g
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// gdb-command:run
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// gdb-command:print first
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// gdbg-check:$1 = {<No data fields>}
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// gdbr-check:$1 = <error reading variable>
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// gdb-command:print second
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// gdbg-check:$2 = {<No data fields>}
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// gdbr-check:$2 = <error reading variable>
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#![allow(unused_variables)]
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#![feature(omit_gdb_pretty_printer_section)]
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#![feature(maybe_uninit)]
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#![omit_gdb_pretty_printer_section]
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use std::mem::MaybeUninit;
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enum ANilEnum {}
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enum AnotherNilEnum {}
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// This test relies on gdbg printing the string "{<No data fields>}" for empty
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// structs (which may change some time)
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// The error from gdbr is expected since nil enums are not supposed to exist.
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fn main() {
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unsafe {
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let first: ANilEnum = MaybeUninit::uninitialized().into_inner();
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let second: AnotherNilEnum = MaybeUninit::uninitialized().into_inner();
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zzz(); // #break
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}
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}
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fn zzz() {()}
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