mirror of https://github.com/rust-lang/rust
26 lines
736 B
Rust
26 lines
736 B
Rust
//@ run-pass
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//@ pretty-expanded FIXME #23616
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#![allow(non_upper_case_globals)]
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/*!
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* Try to double-check that static fns have the right size (with or
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* without dummy env ptr, as appropriate) by iterating a size-2 array.
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* If the static size differs from the runtime size, the second element
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* should be read as a null or otherwise wrong pointer and crash.
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*/
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fn f() { }
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static bare_fns: &'static [fn()] = &[f, f];
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struct S<F: FnOnce()>(F);
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static mut closures: &'static mut [S<fn()>] = &mut [S(f as fn()), S(f as fn())];
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pub fn main() {
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unsafe {
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for &bare_fn in bare_fns { bare_fn() }
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for closure in &mut *closures {
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let S(ref mut closure) = *closure;
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(*closure)()
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}
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}
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}
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