The current date as a character literal in "MMM DD YYYY" format

The current time as a character literal in "HH:MM:SS" format.

This contains the current filename as a string literal.

This contains the current line number as a decimal constant.

Defined as 1 when the compiler complies with the ANSI standard.

__DATE__

__TIME__

__FILE__

__LINE__

__STDC__