2020-05-03 10:14:33 -05:00
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// compile-flags: -Zunleash-the-miri-inside-of-you
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2022-09-21 06:05:20 -05:00
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// stderr-per-bitwidth
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2019-12-16 08:23:42 -06:00
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use std::sync::atomic::AtomicUsize;
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use std::sync::atomic::Ordering;
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2019-12-24 05:24:32 -06:00
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const MUTATE_INTERIOR_MUT: usize = {
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2019-12-16 08:23:42 -06:00
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static FOO: AtomicUsize = AtomicUsize::new(0);
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2022-09-21 06:05:20 -05:00
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FOO.fetch_add(1, Ordering::Relaxed) //~ERROR evaluation of constant value failed
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2019-12-16 08:23:42 -06:00
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};
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2019-12-24 05:24:32 -06:00
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const READ_INTERIOR_MUT: usize = {
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2019-12-16 08:23:42 -06:00
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static FOO: AtomicUsize = AtomicUsize::new(0);
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2022-09-21 06:05:20 -05:00
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unsafe { *(&FOO as *const _ as *const usize) } //~ERROR evaluation of constant value failed
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2019-12-16 08:23:42 -06:00
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};
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static mut MUTABLE: u32 = 0;
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2022-09-21 06:05:20 -05:00
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const READ_MUT: u32 = unsafe { MUTABLE }; //~ERROR evaluation of constant value failed
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const REF_INTERIOR_MUT: &usize = { //~ ERROR undefined behavior to use this value
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//~| encountered a reference pointing to a static variable
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static FOO: AtomicUsize = AtomicUsize::new(0);
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unsafe { &*(&FOO as *const _ as *const usize) }
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};
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// ok some day perhaps
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const READ_IMMUT: &usize = { //~ ERROR it is undefined behavior to use this value
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//~| encountered a reference pointing to a static variable
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static FOO: usize = 0;
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&FOO
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};
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2019-12-16 08:23:42 -06:00
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2022-09-21 06:05:20 -05:00
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fn main() {}
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