Question

I just recently installed OSX lion and got xcode 4.

I made a file in a directory somewhere and put this code in it:

#include <iostream>
using namespace std;

int main()
{
  cout << "Hello World!";
  return 0;
}

Then I ran gcc filename.cc

and I get these errors:

1.cc:3:20: error: iostream: No such file or directory
1.cc: In function ‘int main()’:
1.cc:8: error: ‘cout’ was not declared in this scope

what’s wrong?

EDIT:

if I run g++ filename.cc I get the same errors.

1.cc:3:20: error: iostream: No such file or directory
1.cc: In function ‘int main()’:
1.cc:8: error: ‘cout’ was not declared in this scope

Answer 1

Why are you using gcc? Use g++ instead.