37 lines
769 B
Rust
37 lines
769 B
Rust
#![feature(rustc_attrs)]
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// Show that `homogeneous_aggregate` code ignores zero-length C
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// arrays. This matches the recent C standard, though not the
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// behavior of all older compilers, which sometimes consider `T[0]` to
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// be a "flexible array member" (see discussion on #56877 for
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// details).
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#[repr(C)]
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pub struct Foo {
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x: u32
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}
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#[repr(C)]
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pub struct Middle {
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pub a: f32,
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pub foo: [Foo; 0],
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pub b: f32,
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}
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#[rustc_layout(homogeneous_aggregate)]
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pub type TestMiddle = Middle;
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//~^ ERROR homogeneous_aggregate: Ok(Homogeneous
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#[repr(C)]
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pub struct Final {
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pub a: f32,
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pub b: f32,
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pub foo: [Foo; 0],
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}
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#[rustc_layout(homogeneous_aggregate)]
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pub type TestFinal = Final;
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//~^ ERROR homogeneous_aggregate: Ok(Homogeneous
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fn main() { }
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