Issues

• arm64ec-pc-windows-msvc wrong compiler flag

  dtolnay/cxx#1755 · Filter by author micmzr opened on Sep 6, 2026

• rust::Span<> two-argument constructor should be marked [[clang::unsafe_buffer_usage]]

  dtolnay/cxx#1751 · Filter by author tsepez opened on Aug 24, 2026
  1

• Why is Vec needs_indirect_abi?

  dtolnay/cxx#1743 · Filter by author heinrich5991 opened on Jul 12, 2026

• cxx.cc not compiled by the compiler MCST LCC

  dtolnay/cxx#1719 · Filter by author sanua356 opened on Jun 9, 2026

• cxx-build: target/cxxbridge out of sync when build cache is reused

  dtolnay/cxx#1718 · Filter by author Chaoses-Ib opened on Jun 7, 2026

• cxx.cc in the way of wasm32-* support

  dtolnay/cxx#1710 · Filter by author kolayne opened on May 18, 2026
  2

• CxxVector explicit shim impl fails: patterns aren't allowed in foreign function declarations

  dtolnay/cxx#1709 · Filter by author DexterHill0 opened on May 16, 2026
  1

• undefined symbol

  dtolnay/cxx#1702 · Filter by author zapata-ok opened on Feb 24, 2026
  1

• Suggest build.rs should inherit build configuration from parent project

  dtolnay/cxx#1700 · Filter by author shangyanglj opened on Feb 2, 2026
  1

• Extending a rust::Vec<T> efficiently

  dtolnay/cxx#1699 · Filter by author edmonds opened on Jan 29, 2026

• fn rawr(xs: &[u8; N]) should translate to void rawr(std::span<const uint8_t, N>)

  dtolnay/cxx#1698 · Filter by author cmazakas opened on Jan 29, 2026

• How to consume a crate as a C lib

  dtolnay/cxx#1692 · Filter by author ajewellamz opened on Jan 13, 2026

• Returning a std::vector from C++ fails with STL debug mode enabled

  dtolnay/cxx#1688 · Filter by author mlaveaux opened on Dec 17, 2025
  2

• Does cxx support subclassing a C++ class directly in Rust

  dtolnay/cxx#1678 · Filter by author Omkv28 opened on Dec 4, 2025

• a way of exposing unmangled symbols directly from my shared library without requiring linking to any glue code

  dtolnay/cxx#1677 · Filter by author strike-ntzachar opened on Dec 2, 2025
  6

• "multiple definition of" linker error (Regression since 1.0.188)

  dtolnay/cxx#1673 · Filter by author apartridge opened on Nov 27, 2025
  1

• Compiled headers fail on -Wundefined-func-template if we use Vec

  dtolnay/cxx#1671 · Filter by author jmcclellan-figma opened on Nov 18, 2025
  8

• Creating UniquePtr<CxxString>

  dtolnay/cxx#1667 · Filter by author tomekb234 opened on Oct 29, 2025

• Document canonical way to pass closures from Rust to C++

  dtolnay/cxx#1666 · Filter by author balintbarna opened on Oct 28, 2025

• Comparison with Zngur

  dtolnay/cxx#1660 · Filter by author akguptakgp opened on Oct 10, 2025
  2

• Use parameter object types from C++ side

  dtolnay/cxx#1657 · Filter by author Nugine opened on Sep 27, 2025

• Support for wchar_t

  dtolnay/cxx#1642 · Filter by author yuvald-sweet-security opened on Sep 11, 2025
  3

• Include headers in cxx_build include() brought in by a dependency within target/ sub-directory?

  dtolnay/cxx#1641 · Filter by author lucasw opened on Sep 10, 2025

• Provide clues on how users should implement their own shims / bindings

  dtolnay/cxx#1596 · Filter by author JonathonReinhart opened on Sep 2, 2025

• Exploring general solutions for supporting arbitrary T in Vec<T>, CxxVector<T>, etc.

  dtolnay/cxx#1538 · Filter by author anforowicz opened on Jul 24, 2025
  1