rust/tests/run-make/issue-28766/foo.rs

#![crate_type="lib"]
pub struct Foo(());

impl Foo {
  pub fn new() -> Foo {
    Foo(())
  }
}
Translate zero-sized return types as void The only way to get a value for a zero-sized type is `undef`, so there's really no point in actually having a return type other than void for such types. Also, while the comment in return_type_is_void mentioned something about aiding C ABI support, @eddyb correctly pointed out on IRC that there is no such thing as a zero-sized type in C. And even with clang, which allows empty structs, those get translated as void return types as well. Fixes #28766 2016-01-15 16:34:38 +00:00			`#![crate_type="lib"]`
			`pub struct Foo(());`

			`impl Foo {`
			`pub fn new() -> Foo {`
			`Foo(())`
			`}`
			`}`