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Rollup merge of #133726 - joshtriplett:breakpoint, r=oli-obk

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Add `core::arch::breakpoint` and test

Approved in [ACP 491](https://github.com/rust-lang/libs-team/issues/491).
This commit is contained in:
Matthias Krüger 2024-12-03 21:55:27 +01:00 • committed by GitHub
commit e66e632479
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9 changed files with 66 additions and 13 deletions
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9
compiler/rustc_error_codes/src/error_codes/E0622.md
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@ -7,10 +7,11 @@ Erroneous code example:
#![allow(internal_features)]
extern "rust-intrinsic" {
pub static breakpoint: fn(); // error: intrinsic must be a function
pub static atomic_singlethreadfence_seqcst: fn();
// error: intrinsic must be a function
}
fn main() { unsafe { breakpoint(); } }
fn main() { unsafe { atomic_singlethreadfence_seqcst(); } }
```
An intrinsic is a function available for use in a given programming language
@ -22,8 +23,8 @@ error, just declare a function. Example:
#![allow(internal_features)]
extern "rust-intrinsic" {
pub fn breakpoint(); // ok!
pub fn atomic_singlethreadfence_seqcst(); // ok!
}
fn main() { unsafe { breakpoint(); } }
fn main() { unsafe { atomic_singlethreadfence_seqcst(); } }
```