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// run-pass
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#![allow(stable_features)]
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#![feature(volatile)]
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use std::ptr::{read_volatile, write_volatile};
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fn main() {
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let mut x: &'static str = "test";
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unsafe {
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let a = read_volatile(&x);
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assert_eq!(a, "test");
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write_volatile(&mut x, "foo");
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assert_eq!(x, "foo");
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}
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}
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