Features

xUnit test framework: \ Googletest is based on the xUnit testing framework, a popular architecture for unit testing
Test discovery: \ Googletest automatically discovers and runs your tests, eliminating the need to manually register your tests
Rich set of assertions: \ Googletest provides a variety of assertions, such as equality, inequality, exceptions, and more, making it easy to test your code

This is Expat, a C library for parsing XML, started by James Clark in 1997.
Expat is a stream-oriented XML parser.
This means that you register handlers with the parser before starting the parse.

EasyBMP is a simple, cross-platform, open source (revised BSD) C++ library
designed for easily reading, writing, and modifying Windows bitmap (BMP) image files.