| Macro | Description |
|---|---|
| __DATE__ | The current date as a character literal in "MMM DD YYYY" format |
| __TIME__ | The current time as a character literal in "HH:MM:SS" format |
| __FILE__ | This contains the current filename as a string literal. |
| __LINE__ | This contains the current line number as a decimal constant. |
| __STDC__ | Defined as 1 when the compiler complies with the ANSI standard. |
e.g.:
#include
main()
{
printf("File :%s \n", __FILE__ );
printf("Date :%s \n", __DATE__ );
printf("Time :%s \n", __TIME__ );
printf("Line :%d \n", __LINE__ );
printf("ANSI :%d \n", __STDC__ );
}
Compile & run:
|
File :test.c Date :Jun 2 2012 |