Sux is an umbrella nickname for the results of my fiddling with the implementation of basic succinct data strucures in C++ and Java. Please have a look at the documentation for the main highlights.
Sux is free software. The Java code is distributed under either the GNU Lesser General Public License 2.1+ or the Apache Software License 2.0. The C++ code is distributed under the GNU General Public License 3.0+ with a Runtime Library Exception (as the C standard library).