I can't speak for general popularity, but the reason I haven't been able to try it as a C & C++ replacement is that I tend to use C or C++ where I have to. Weir

I can't speak for general popularity, but the reason I haven't been able to try it as a C & C++ replacement is that I tend to use C or C++ where I have to. Weird hardware, integrating with some existing piece of software, etc. Using it for that kind of thing is hard and definitely more work than using C/C++. I guess it's the same reason I don't use D.