Does cling support a C99 or C11 mode?<p>A lot of times, for C development and related endeavors, I want to quickly determine the size of a struct or do some quick tests with strange arithmetic or casting or whatever else. Usually I just write a tiny test program, compile it, run it, and look at my printf output. This is pretty slow though. Having a C REPL would be quite nice.<p>It would be nice to see a wrapper around GCC that does this, for, say, a kernel source REPL.