fastcorrelation: a program to quickly compute the two-point correlation function
		 of point sets on small scales, especially of galaxy surveys
		 (on nonlinear scales) and simulations thereof.

Usage:
./auto max_scale box_size filename_of_points
./cross max_scale box_size filename_of_pointsA filename_of_pointsB

Acknowledgements:
This code is a intellectual descendant of a program originally written by
David Weinberg.  The memory layout optimizations are due to ideas implemented
in a separate implementation by Manodeep Sinha.

    Copyright (C) 2015  Benjamin D. Wibking

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License along
    with this program; if not, write to the Free Software Foundation, Inc.,
    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.