Compiling C++-code without a file

Question

I\'m trying to compile some C++ code using your standard g++ compiler. However, rather than compiling from a file:

main.cpp:

#include 

        

Answer 1

The compiler reads from an input source - either the stdin or a file supplied. You need a pipe to supply something from elsewhere to the compiler. There is no other choice (and of course, some compilers may not have an option to read from stdin either)