Compiling simple Hello World program on OS X via command line

Question

I\'ve got a simple hello world example that I\'m trying to compile on OS X, named hw.cpp:

#include 
#include 
usin         


        

Answer 1

Try

g++ hw.cpp
./a.out

g++ is the C++ compiler frontend to GCC.
gcc is the C compiler frontend to GCC.

Yes, Xcode is definitely an option. It is a GUI IDE that is built on-top of GCC.

Though I prefer a slightly more verbose approach:

#include 

int main()
{
    std::cout << "Hello world!" << std::endl;
}