erikvold erikvold - 1 year ago 74
C++ Question

Compiling simple Hello World program on OS X via command line

I've got a simple hello world example that I'm trying to compile on OS X, named


#include <iostream>
#include <string>
using namespace std;
int main() {
cout << "Hello world!" << endl;
return 0;

I'd like to compile it using
, but I've had no success. I'd also like to hear the other options, like using Xcode ?

Answer Source


g++ hw.cpp

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 <iostream>

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