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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:19:13 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:19:13 +0000
commit218caa410aa38c29984be31a5229b9fa717560ee (patch)
treec54bd55eeb6e4c508940a30e94c0032fbd45d677 /src/test/rustdoc/issue-54478-demo-allocator.rs
parentReleasing progress-linux version 1.67.1+dfsg1-1~progress7.99u1. (diff)
downloadrustc-218caa410aa38c29984be31a5229b9fa717560ee.tar.xz
rustc-218caa410aa38c29984be31a5229b9fa717560ee.zip
Merging upstream version 1.68.2+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/test/rustdoc/issue-54478-demo-allocator.rs')
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diff --git a/src/test/rustdoc/issue-54478-demo-allocator.rs b/src/test/rustdoc/issue-54478-demo-allocator.rs
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-// Issue #54478: regression test showing that we can demonstrate
-// `#[global_allocator]` in code blocks built by `rustdoc`.
-//
-// ## Background
-//
-// Changes in lang-item visibility injected failures that were only
-// exposed when compiling with `-C prefer-dynamic`. But `rustdoc` used
-// `-C prefer-dynamic` (and had done so for years, for reasons we did
-// not document at that time).
-//
-// Rather than try to revise the visbility semanics, we instead
-// decided to change `rustdoc` to behave more like the compiler's
-// default setting, by leaving off `-C prefer-dynamic`.
-
-// compile-flags:--test
-
-//! This is a doc comment
-//!
-//! ```rust
-//! use std::alloc::*;
-//!
-//! #[global_allocator]
-//! static ALLOC: A = A;
-//!
-//! static mut HIT: bool = false;
-//!
-//! struct A;
-//!
-//! unsafe impl GlobalAlloc for A {
-//! unsafe fn alloc(&self, layout: Layout) -> *mut u8 {
-//! HIT = true;
-//! System.alloc(layout)
-//! }
-//! unsafe fn dealloc(&self, ptr: *mut u8, layout: Layout) {
-//! System.dealloc(ptr, layout);
-//! }
-//! }
-//!
-//! fn main() {
-//! assert!(unsafe { HIT });
-//! }
-//! ```