SG_LOG is a wrapper macro for the SimGear
logstream class. By default, the
logstream class writes all output to the console.
SG_LOG simplifies debugging for core developers who regularly compile from source. It allows you to easily associate your debug messages with a "channel" and with a "priority". This mechanism allows users to explicitly enable to certain log messages, while ignoring others. This can be helpful in order to troubleshoot certain problems.
Logging settings can be modified using the
--log-class=[class] command line options. Where
level is one of the following:
class is a white space seperated list of any (combination) of the following:
For a complete list of available classes, see simgear/simgear/debug/debug_types.h.