mqtlam/logger

Another portable, lightweight and hackable logging utility for C++

logger

Another portable, lightweight and hackable logging utility for C++.

Usage

Usage is extremely easy:

1. Add Logger.h and Logger.cpp files to your project.
2. Include the Logger.h in your project with #include "Logger.h".
3. Initialize the Logger by running LOG_INITIALIZE("logfilenamehere.txt").
4. Write to the log by using LOG() << "Your message here".
5. Somewhere near the end of your program, run LOG_FINALIZE().

See demo.cpp for a demo with more usage examples:

// must call this before using Logger
// if not called before using LOG(), then 
// LOG() simply outputs to stdout/stderr
LOG_INITIALIZE("log.txt");

// write freely to log
LOG() << "Hello World! ";
LOG() << "Write to log freely...." << std::endl << std::endl;

// write debug message to log
// note that it automatically adds endl to the end
LOG(LDEBUG) << "Debug message. " 
	"This should not be printed since default minimum logging level is at INFO.";

// set minimum logging level to DEBUG
// any message with logging level >= DEBUG will be printed now
LOG_SET_LEVEL(LDEBUG);

// write to debug message to log
LOG(LDEBUG) << "Debug message. "
	"This should be printed since default minimum logging level is now at DEBUG.";

// write normal message to log
LOG(LINFO) << "Normal message.";

// write warning message to log
LOG(LWARNING) << "Warning message.";

// write error message to log
LOG(LERROR) << "Error message.";

// must call this before exiting program
// to release the log file handler
LOG_FINALIZE();

Extensions

This logging utility is also very hackable, i.e. you can customize it to your liking. Read the comments in the Logger class.

Documentation

Optionally use doxygen to generate the documentation for the Logger class.