They've been putting a lot of work into an experimental automatic C++ header generator lately. https://dlang.org/changelog/2.096.0.html#dtoh-improvements https

They've been putting a lot of work into an experimental automatic C++ header generator lately. https://dlang.org/changelog/2.096.0.html#dtoh-improvements https://dlang.org/changelog/2.096.0.html#dtoh-improvements Each changelog for the last good handful has seen a lot of work in this area. I recently had to write and learn a bit of C++ for the first time, and tried at all costs to avoid it (FFI/interop from Rust or D). I wound up biting the bullet and writing C++ but I learned a lot about FFI in general and how interop works, plus your options available in both languages. D has this new experimental C++ header generator (which is exciting), plus D has always had: extern (C++) Which is capable of directly linking + invoking most C++ things (except constructors/destructors, it can't handle those, you need a function which calls the constructor from within C++) just given a type definition. Then you have "d++", which lets you "#include" C/C++ headers. Under the hood tries to run an automatic syntax conversion. It can't handle <std> but for simple code it works and can spit out the equivalent D. https://github.com/atilaneves/dpp https://github.com/atilaneves/dpp Also you've got "dstep", which is "A tool for converting C and Objective-C headers to D modules" https://github.com/jacob-carlborg/dstep https://github.com/jacob-carlborg/dstep And finally you have the somewhat abandoned (but as far as I know mostly functional) Calypso, which is a fork of the LLVM-based D compiler that supports direct interop with C++. It's a pain to build though, haven't gotten around to trying to build it, but it does look wicked cool: https://github.com/Syniurge/Calypso https://github.com/Syniurge/Calypso pragma (cppmap, "cppheader.h"); // tells Clang to parse cppheader.h but do not import anything import (C++) NamespaceA.Class1; // imports NamespaceA::Class1 import (C++) NamespaceA; // imports the full namespace import (C++) *; // imports the entire translation unit So I am hopeful about the future of the relationship between C++ and D. I would really have loved to have not written that C++ lol.