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// check-pass
// This test exhibits undefined behavior, but it is very expensive and complex to check for such
// UB in constants.
// Thus, we do not detect it if you create references to statics in ways that are UB.
enum Foo {
A = 5,
B = 42,
}
enum Bar {
C = 42,
D = 99,
}
#[repr(C)]
union Union {
foo: &'static Foo,
bar: &'static Bar,
u8: &'static u8,
}
static BAR: u8 = 5;
static FOO: (&Foo, &Bar) = unsafe {
(
// undefined behavior
Union { u8: &BAR }.foo,
Union { u8: &BAR }.bar,
)
};
static FOO2: (&Foo, &Bar) = unsafe { (std::mem::transmute(&BAR), std::mem::transmute(&BAR)) };
//^ undefined behavior
fn main() {}
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