ofstream

[dorA26]

when opening a file does ofstream deletes its content by default? If so, how do I cancel that? I don't want to use app, because I need to edit the file between the existing characters.

thanks!

[JLBorges]

http://stdcxx.apache.org/doc/stdlibug/30-3.html

[dorA26]

from this I understood I should use output.open("test.txt" , iostream::ate);
it still deletes the previous content though

[Chervil]

ios::app
http://www.cplusplus.com/reference/iostream/ofstream/open/

[dorA26]

but then I can only add output at the end of the file (that's what I understand at least).. I don't want that

[Chervil]

Sorry, I misread the question.
This might be better:
fstream fout("test.txt", ios_base::in | ios_base::out | ios_base::ate);
The first time this is run, if the file does not already exist, it will give an error, so you may need alternative logic for that case.

[dorA26]

yeah this is working. Thank you!