| __LINE__ |
A decimal constant representing the current line
number. |
| __FILE__ |
A string representing the current name of the
source code file. |
| __DATE__ |
A string representing the current date when
compiling began for the current source file. It is
in the format "mmm dd yyyy", the same as what is
generated by the asctime function. |
| __TIME__ |
A string literal representing the current time
when cimpiling began for the current source file. It
is in the format "hh:mm:ss", the same as what is
generated by the asctime function. |
| __STDC__ |
The decimal constant 1. Used to indicate if this
is a standard C compiler. |
