If you're used to one C-style language, it's generally not hard to read code written in another. This is not to say that you'll grok it 100% accurately on your first go, but another C-style language will be more readable to you than, say, a Lisp-flavored one would be.

Of course that "readability" leads to devs writing C in Java, or what have you, and naking subtle mistakes, instead of learning the new language. See Dijkstra's "On the cruelty of really teaching computer science"