Wrting to the END of a text file

[face_master]

How do you make it so you write to the end of a file, instead of writing over the file?

[face_master]

anybody...?

[Shmulik]

I suggest you show us a piece of you code that wirtes over the file, and we'll correct it to appending to the file...

[damyan]

Hi,
when you use

void open(const char *s,
    ios_base::openmode mode = ios_base::out | ios_base::trunc);

check the predefined constants in ios_base class:

    static const openmode app, ate, binary, in, out, trunc;

and provide ios_base :: app instead of ios_base::trunc

e.g.

     output.open("data.txt", ios_base::out | ios_base::app);