51 lines
1.6 KiB
Rust
51 lines
1.6 KiB
Rust
//@ revisions: e2021 e2024
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//@ [e2021] edition:2021
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//@ [e2024] compile-flags: --edition 2024 -Z unstable-options
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#![deny(static_mut_refs)]
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use std::ptr::{addr_of, addr_of_mut};
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fn main() {
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static mut X: i32 = 1;
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static mut Y: i32 = 1;
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unsafe {
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let _y = &X;
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//[e2024]~^ ERROR creating a shared reference to a mutable static [E0796]
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//[e2021]~^^ ERROR shared reference to mutable static is discouraged [static_mut_refs]
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let _y = &mut X;
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//[e2024]~^ ERROR creating a mutable reference to a mutable static [E0796]
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//[e2021]~^^ ERROR mutable reference to mutable static is discouraged [static_mut_refs]
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let _z = addr_of_mut!(X);
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let _p = addr_of!(X);
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let ref _a = X;
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//[e2024]~^ ERROR creating a shared reference to a mutable static [E0796]
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//[e2021]~^^ ERROR shared reference to mutable static is discouraged [static_mut_refs]
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let (_b, _c) = (&X, &Y);
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//[e2024]~^ ERROR creating a shared reference to a mutable static [E0796]
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//[e2021]~^^ ERROR shared reference to mutable static is discouraged [static_mut_refs]
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//[e2024]~^^^ ERROR creating a shared reference to a mutable static [E0796]
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//[e2021]~^^^^ ERROR shared reference to mutable static is discouraged [static_mut_refs]
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foo(&X);
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//[e2024]~^ ERROR creating a shared reference to a mutable static [E0796]
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//[e2021]~^^ ERROR shared reference to mutable static is discouraged [static_mut_refs]
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static mut Z: &[i32; 3] = &[0, 1, 2];
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let _ = Z.len();
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let _ = Z[0];
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let _ = format!("{:?}", Z);
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}
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}
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fn foo<'a>(_x: &'a i32) {}
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