...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
The quaternion_test.cpp test program tests quaternions specializations for float, double and long double (sample output, with message output enabled).
If you define the symbol TEST_VERBOSE, you will get additional output (verbose output); this will only
be helpful if you enable message output at the same time, of course (by uncommenting
the relevant line in the test or by adding --log_level=messages
to your command line,...). In that case, and if you are running interactively,
you may in addition define the symbol BOOST_INTERACTIVE_TEST_INPUT_ITERATOR
to interactively test the input operator with input of your choice from the
standard input (instead of hard-coding it in the test).