| 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.:
|
1 2 3 4 5 6 7 8 9 10 11 |
#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 |