Rust can be called from C the same way as C++ can. You need to export unmangled extern "C" symbols. Not quite frictionless but there are helper utilities for th

Rust can be called from C the same way as C++ can. You need to export unmangled extern "C" symbols. Not quite frictionless but there are helper utilities for this. If the Rust code uses the "StupidAlloc" allocator, it should work as expected. There may be some constructor/destructor code involved with its usual complications. But it would not replace malloc/free in C code nor will it be compatible with C++ allocators for std containers.