Appending a new line in a file(log file) in c++

Question

I have a logging functionality and in this I have got log files. Now every time I run the program I want that previously written file should not get deleted and should be ap

Answer 1

maybe you need to open the file with the append option. like this:

FILE * pFile;
pFile = fopen ("myfile.txt","a");

or this :

fstream filestr;
filestr.open ("test.txt", fstream::app)