Useful macros for debugging purposes.
debug("I see what you did there o_O!");
log_info("standing still");Output:
* DEBUG example.c:12: I see what you did there o_O!
* [INFO] (example.c:13) standing still
Or you could redirect logging information to a file using debug_set_log(FILE * log_file);.
If you #define NDEBUG calls to debug will be ignored and will output nothing.
If you want to output errnos, you can use debug_errno() to transform error
number to string, if no error happened the resulted string will be “None”.
$ clib install zerodbg
For serious logging purposes please use a framework such as log4c for example.