How to append text to a text file in C++?

[lastchance]

Dratted re-post bot: original question from
https://stackoverflow.com/questions/2393345/how-to-append-text-to-a-text-file-in-c

#include <fstream>
using namespace std;

int main()
{
   const char filename[] = "output.txt";
   ofstream out( filename, ofstream::app );
   out << "Yet another line of text" << '\n';
}

Can't remove this thread until seeplus removes his post.

[seeplus]

See under mode in http://www.cplusplus.com/reference/fstream/ofstream/open/