An ABACUS distribution consists of two files: the platform dependent library and the platform independent files (e.g., include files, documentation, etc.).
The directory abacus consists of the subdirectories include/abacus, lib, doc, example, and tools. The directory abacus/include/abacus contains files with the extension .h, the headers of all classes, and files with the extension .inc, the definition of the member functions of template classes. The configuration file .abacus is installed in the directory abacus. The documentation in Postscript and HTML format is contained in the subdirectory abacus/doc. The complete source code of an example of a simple branch-and-cut algorithm for the traveling salesman problem can be found in the subdirectory abacus/example. Helpful Perl scripts for an upgrade from previous ABACUS versions can be found in the subdirectory abacus/tools.