Contents of the UNtoU3 package:

UNtoU3.h - main header file to be included into C++11 enabled source code.

test_141.cpp - test source file for U(6) irrep [2,1,1,1,1,0].

test_6114.cpp - test source file for U(21) irrep [2,2,2,2,2,2,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0].

test_input.cpp - benchmark source file that takes eta, n2, n1, and n0 as user inputs and optionaly (with BOOST) verify level dimensionalities or generated U3 irreps.

Makefile - build configuration for automake tool. 

alg1/test_alg1.cpp - original implementation extracted from LSU3shell.

For building test programs, please run make. Configuration of the build process (compiler, flags, optional BOOST path) is specified in the Makefile file.