26 lines
970 B
Rust
26 lines
970 B
Rust
// Copyright 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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// Try to initialise a DST struct where the lost information is deeply nested.
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// This is an error because it requires an unsized rvalue. This is a problem
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// because it would require stack allocation of an unsized temporary (*g in the
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// test).
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struct Fat<T: ?Sized> {
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ptr: T
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}
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pub fn main() {
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let f: Fat<[isize; 3]> = Fat { ptr: [5, 6, 7] };
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let g: &Fat<[isize]> = &f;
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let h: &Fat<Fat<[isize]>> = &Fat { ptr: *g };
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//~^ ERROR the trait `core::marker::Sized` is not implemented
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}
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