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Copyright © 2008, 2009 Arndt Roger Schneider
Table of Contents
Logger. Allows for fine-grained logging toward streams. Output to stderr won’t be filtered (regardless of its level. The DEBUG_LEVEL variable gets checked to determine if a message has to be printed to the specific stream. DEBUG_LEVEL will be checked within the caller then inside the namespace and the global scope. DEBUG_LEVEL can also be predefined in the environment. The value -1 means: everything is logged. »debug« does not support variable substitution!