What I want to do
In file,
username MyName
username MySecondName
the file I want
username Michale
username MySecondName
I want to change "MyName" to other string, like "Michale".
I try to use regexr and wfstream, and overwrite "Michale" at the wstreampos of MyName.
there is no problem when other string is longer than "MyName".
Fisrt problem : Remains when overwrite
But if other string is shorter than "MyName", like "Mike", the problem is
username Mikeme
username MySecondName
There are remaining letters behind!
Second problem : New line
To solve first problem,
streamout << "\n" ;
//or streamout << std::endl;
That's not a result I want
username MyName
username MySecondName
please let me know how to change, trim and print string in file.
