Rust 2024 compatibility #114

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1. nunoplopes commented on May 17, 2026

   

   nunoplopes

   on May 17, 2026

   ContributorAuthor

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   Woff2 also fails:

      Compiling woff2_unsafe v0.1.0 (/home/nuno.lopes/testsuite/woff2/out/unsafe)
   error: creating a shared reference to mutable static
       --> src/bin/woff2_info.rs:1433:9
        |
   1433 |         &woff2_kDsigTableTag,
        |         ^^^^^^^^^^^^^^^^^^^^ shared reference to mutable static
        |
        = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives
        = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html>
        = note: `#[deny(static_mut_refs)]` (part of `#[deny(rust_2024_compatibility)]`) on by default
   help: use `&raw const` instead to create a raw pointer
        |
   1433 |         &raw const woff2_kDsigTableTag,
        |          +++++++++
   
   error: could not compile `woff2_unsafe` (bin "woff2_info") due to 1 previous error
   warning: build failed, waiting for other jobs to finish...
   error: creating a shared reference to mutable static
       --> src/bin/woff2_decompress.rs:3250:36
        |
   3250 |             (*if *&mut __tmp_0 <= *&woff2_kDefaultMaxSize {
        |                                    ^^^^^^^^^^^^^^^^^^^^^^ shared reference to mutable static
        |
        = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives
        = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html>
        = note: `#[deny(static_mut_refs)]` (part of `#[deny(rust_2024_compatibility)]`) on by default
   help: use `&raw const` instead to create a raw pointer
        |
   3250 |             (*if *&mut __tmp_0 <= *&raw const woff2_kDefaultMaxSize {
        |                                     +++++++++
   
   error: creating a shared reference to mutable static
       --> src/bin/woff2_decompress.rs:3253:17
        |
   3253 |                 (&woff2_kDefaultMaxSize) as *const _
        |                 ^^^^^^^^^^^^^^^^^^^^^^^^ shared reference to mutable static
        |
        = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives
        = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html>
   help: use `&raw const` instead to create a raw pointer
        |
   3253 |                 (&raw const woff2_kDefaultMaxSize) as *const _
        |                   +++++++++
   
   error: could not compile `woff2_unsafe` (bin "woff2_decompress") due to 2 previous errors
   error: creating a shared reference to mutable static
       --> src/bin/woff2_compress.rs:1433:9
        |
   1433 |         &woff2_kDsigTableTag,
        |         ^^^^^^^^^^^^^^^^^^^^ shared reference to mutable static
        |
        = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives
        = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html>
        = note: `#[deny(static_mut_refs)]` (part of `#[deny(rust_2024_compatibility)]`) on by default
   help: use `&raw const` instead to create a raw pointer
        |
   1433 |         &raw const woff2_kDsigTableTag,
        |          +++++++++
   
   error: could not compile `woff2_unsafe` (bin "woff2_compress") due to 1 previous error
   
2. nunoplopes

   assigned

   Copilot

   and

   nunoplopes

   on Jun 4, 2026
3. Copilot

   linked a pull request that will close this issueFix wrong expected output for default_in_statics.cpp/unsafe test and shared reference to mutable static errors #179on Jun 4, 2026
4. nunoplopes

   added

   bugSomething isn't workingSomething isn't working

   on Jul 11, 2026
5. nunoplopes

   closed this as completedin 1ba24cbon Sep 17, 2026
6. lucic71

   added a commit that references this issue on Sep 17, 2026

   Fix Cpp2Rust#114: Rust 2024 compatibility

   This issue will close once commit 1ba24cb is merged into the 'master' branch.

   1ba24cb