welkam

Why should you rewrite good software? D can call C libraries. With DPP you can even use C macros in D code. D has some interoperability with C++ so now you have access to some C++ libs. But wait there is more. D can interop with python and R. And there was a person that talked about C# interop.

The language doesn't tell you what to use. You choose what to use.

Its more than that. D is part of GCC - The GNU Compiler Collection. Meaning that if you use linux and have recent GCC you already have D compiler.

I have seen few videos by Walter Bright, Andrei Alexandrescu on ranges and I have no problem understanding D`s documentation. Maybe you should learn the language before using it.