Compile string of C code

Question

Really off the wall question here, but is there a way to compile a string of C code in GCC without any medium to hold that string (eg. a source file)?

Something along th

Answer 1

I confess to sometimes highlighting code and using:

(cat preamble.hpp; xsel) | g++ -x c++ - && ./a.out

The same works with "-x c" for C.