The ANSI standard for the C language requires the Compiler to predefine a couple of macros. The Compiler provides the predefined macros listed in the following table.
| Macro | Description |
|---|---|
| __LINE__ | Line number in the current source file |
| __FILE__ | Name of the source file where it appears |
| __DATE__ | The date of compilation as a string |
| __TIME__ | The time of compilation as a string |
| __STDC__ | Set to 1 if the -Ansi: Strict ANSI compiler option has been given. Otherwise, additional keywords are accepted (not in the ANSI standard). |
The following tables lists all Compiler defines with their associated names and options.
It is also possible to log all Compiler predefined defines to a file using the -Ldf: Log Predefined Defines to File compiler option.