I know of two languages: 1. D (https://dlang.org/spec/cpp_interface.html https://dlang.org/spec/cpp_interface.html) 2. Nim. Though this is a bit cheap because

I know of two languages: 1. D (https://dlang.org/spec/cpp_interface.html https://dlang.org/spec/cpp_interface.html) 2. Nim. Though this is a bit cheap because Nim is a frontend to C(++), so you're really writing C++ that calls other C++ when it boils down to it. See https://nim-lang.org/docs/manual.html#implementation-specific-pragmas-importcpp-pragma https://nim-lang.org/docs/manual.html#implementation-specifi...