Very fast, header only, C++ logging library.
Install: Just copy the files to your build tree and use a C++11 compiler
Features:
* Very fast – performance is the primary goal (see becnhmarks below)
* Headers only
* No dependencies
* Cross platform - Linux / Windows on 32/64 bits
* Mult/Single threaded loggers
* Rotating log files
* Daily log files
* Console logging
* Optional async logging
* Logging levels
* Custom formatting with user defined patterns