C++ ‘da __DATE__ ne demektir ?

This macro expands to a string constant that describes the date on which the preprocessor is being run. The string constant contains eleven characters and looks like “Feb 12 1996”. If the day of the month is less than 10, it is padded with a space on the left.

If GCC cannot determine the current date, it will emit a warning message (once per compilation) and __DATE__ will expand to “??? ?? ????”.