48 lines
849 B
Rust
48 lines
849 B
Rust
#![feature(thread_local)]
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use std::thread;
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#[thread_local]
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static mut A: u8 = 0;
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#[thread_local]
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static mut B: u8 = 0;
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static mut C: u8 = 0;
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unsafe fn get_a_ref() -> *mut u8 {
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&mut A
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}
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fn main() {
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unsafe {
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let x = get_a_ref();
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*x = 5;
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assert_eq!(A, 5);
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B = 15;
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C = 25;
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}
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thread::spawn(|| {
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unsafe {
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assert_eq!(A, 0);
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assert_eq!(B, 0);
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assert_eq!(C, 25);
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B = 14;
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C = 24;
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let y = get_a_ref();
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assert_eq!(*y, 0);
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*y = 4;
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assert_eq!(A, 4);
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assert_eq!(*get_a_ref(), 4);
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}
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}).join().unwrap();
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unsafe {
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assert_eq!(*get_a_ref(), 5);
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assert_eq!(A, 5);
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assert_eq!(B, 15);
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assert_eq!(C, 24);
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}
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} |