I have function and i do not know what events are occurred in it. And I used it in many of the main, If i write a file by "ostream" , events are wrote successfully but when the function recalled, the events are cleaned from the text file and it start's to write from the first of the file!!
So, How can i write as appendix in a file ( such as text files ) for continuation?
How do I append to an existing text file?