I thought C++ was designed to fit all sorts of applications. There is many GUI libraries for C++ for example, and the language has all the capabilities to add abstractions for making these sorts of libraries easy to work with. I think you could argue that C was made for low level code, since the working group seems to be focussing on making the core of the language more usable instead of allowing for abstractions that make libraries easier to work with (I think we can all agree that the C interface of gtk is not that great to work with, though I do commend their efforts).

Sorry for rambling so much, I hope I got my point across.