Issues

• Writing to pointers based on shared refs is undefined in Rust

  analysis-highneeds-interopp-safetyp-semanticst-problem-statement
  rustfoundation/interop-initiative#81 · Filter by author teor2345 opened on Oct 6, 2026

• Support Pointer Authentication for C++ Function Pointers in Rust/C++ Interoperability

  analysis-medl-c++l-rustneeds-c++needs-rustp-safetyp-semanticst-use-case
  rustfoundation/interop-initiative#79 · Filter by author jchlanda opened on Aug 28, 2026

• C++ RTTI for Rust types

  analysis-medl-rustneeds-interopneeds-rustp-semanticst-use-case
  rustfoundation/interop-initiative#78 · Filter by author teor2345 opened on Aug 12, 2026

• Passing of non-POD types through FFI layers

  analysis-medl-rustneeds-interopneeds-rustp-semanticssolved-crubitsolved-cxxt-problem-statement
  rustfoundation/interop-initiative#77 · Filter by author aapoalas opened on Aug 12, 2026

• Rust's repr(C) gives the wrong layout for obscure C++ types

  analysis-lowl-rustneeds-interopneeds-rustp-safetyp-semanticst-problem-statement
  rustfoundation/interop-initiative#74 · Filter by author teor2345 opened on Jul 9, 2026

• Thread-safety in a mixed Rust/C++ code base

  l-rustp-safetyp-semanticssolved-crubitt-problem-statement
  rustfoundation/interop-initiative#73 · Filter by author aapoalas opened on Jul 8, 2026
  1

• Use the C _Complex number type

  analysis-lowl-rustneeds-rustp-semanticssolved-rustct-use-case
  rustfoundation/interop-initiative#72 · Filter by author teor2345 opened on Jul 6, 2026

• Bridge async between Rust and C++

  p-ergonomicsp-semanticssolved-crubitsolved-cxxsolved-zngurt-use-case
  rustfoundation/interop-initiative#71 · Filter by author teor2345 opened on Jun 11, 2026
  2

• Implement a Rust trait for a C++ type

  needs-interopp-semanticssolved-crubitsolved-cxxsolved-zngurt-use-case
  rustfoundation/interop-initiative#70 · Filter by author teor2345 opened on Jun 11, 2026

• Use Rust dyn traits from C++

  p-semanticssolved-crubitsolved-zngurt-problem-statement
  rustfoundation/interop-initiative#69 · Filter by author teor2345 opened on Jun 11, 2026

• Define a C++ enum from Rust

  l-rustneeds-interopneeds-rustp-semanticssolved-crubitsolved-cxxt-use-case
  rustfoundation/interop-initiative#68 · Filter by author teor2345 opened on Jun 11, 2026

• Create layout-compatible standard lib types in Rust and C++

  l-c++p-performancep-semanticssolved-crubitsolved-cxxt-use-case
  rustfoundation/interop-initiative#67 · Filter by author teor2345 opened on Jun 5, 2026

• Use LTO in a mixed Rust and C++ project

  analysis-medl-c++l-rustp-performancep-safetyp-semanticssolved-crubitsolved-cxxt-use-case
  rustfoundation/interop-initiative#66 · Filter by author teor2345 opened on May 4, 2026
  5

• Rust and C++ unwinding & exceptions work differently

  l-c++l-rustneeds-interopneeds-lib-codeneeds-rustp-safetyp-semanticssolved-cxxsolved-zngurt-problem-statement
  rustfoundation/interop-initiative#65 · Filter by author teor2345 opened on May 4, 2026

• Rust and C++ handle ownership differently

  l-c++l-rustneeds-c++needs-lib-codeneeds-rustp-safetyp-semanticssolved-crubitsolved-cxxsolved-zngurt-problem-statement
  rustfoundation/interop-initiative#64 · Filter by author teor2345 opened on May 4, 2026

• Rust and C++ type layouts are different

  l-c++l-rustneeds-c++needs-interopneeds-rustp-safetyp-semanticssolved-crubitsolved-cxxsolved-zngurt-problem-statement
  rustfoundation/interop-initiative#63 · Filter by author teor2345 opened on May 4, 2026

• Rust and C++ can have incompatible allocators

  l-c++l-rustneeds-interopneeds-rustp-ergonomicsp-safetysolved-crubitsolved-cxxsolved-zngurt-problem-statement
  rustfoundation/interop-initiative#62 · Filter by author teor2345 opened on May 4, 2026
  1

• Initialise a C++ object in-place

  analysis-lowl-rustneeds-interopneeds-lib-codeneeds-rustp-safetyp-semanticssolved-crubitt-use-case
  rustfoundation/interop-initiative#61 · Filter by author teor2345 opened on May 4, 2026

• Rust makes it hard to create blanket impls (variadic generics)

  analysis-medl-rustneeds-rustp-ergonomicsp-semanticst-problem-statement
  rustfoundation/interop-initiative#60 · Filter by author teor2345 opened on Apr 30, 2026

• Some ABIs for zero-sized types are incompatible

  analysis-lowl-c++needs-c++needs-lib-codeneeds-rustp-semanticst-problem-statement
  rustfoundation/interop-initiative#59 · Filter by author teor2345 opened on Apr 29, 2026

• Rust allows mismatching function declarations and definitions

  analysis-lowl-rustneeds-lib-codeneeds-rustp-ergonomicsp-safetyt-problem-statement
  rustfoundation/interop-initiative#58 · Filter by author teor2345 opened on Apr 23, 2026

• Use Rust to call C++ class member functions directly on Windows

  analysis-lowl-rustneeds-rustp-build-systemt-use-case
  rustfoundation/interop-initiative#57 · Filter by author teor2345 opened on Apr 22, 2026

• Use a debugger in a mixed Rust and C++ project

  analysis-medl-rustneeds-rustp-build-systemp-ergonomicst-problem-statement
  rustfoundation/interop-initiative#55 · Filter by author teor2345 opened on Apr 13, 2026

• Adding Rust to a C++ project shadows math functions

  analysis-lowl-rustneeds-rustp-build-systemp-safetyt-problem-statement
  rustfoundation/interop-initiative#54 · Filter by author teor2345 opened on Apr 8, 2026

• Avoid Rust null checks for C++ non-null pointers

  analysis-medl-c++needs-interopp-performancesolved-crubitsolved-zngurt-use-case
  rustfoundation/interop-initiative#50 · Filter by author teor2345 opened on Apr 7, 2026
  2