src/lib/math/scmat/predicate.h

//
// predicate.h
//
// Copyright (C) 2009 Edward Valeev
//
// Author: Edward Valeev <evaleev@vt.edu>
// Maintainer: EV
//
// This file is part of the SC Toolkit.
//
// The SC Toolkit is free software; you can redistribute it and/or modify
// it under the terms of the GNU Library General Public License as published by
// the Free Software Foundation; either version 2, or (at your option)
// any later version.
//
// The SC Toolkit 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 Library General Public License for more details.
//
// You should have received a copy of the GNU Library General Public License
// along with the SC Toolkit; see the file COPYING.LIB.  If not, write to
// the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
//
// The U.S. Government is granted a limited license as per AL 91-7.
//

#ifndef _mpqc_src_lib_math_scmat_predicate_h
#define _mpqc_src_lib_math_scmat_predicate_h

#include <cmath>

namespace sc {

  template <typename T>
  struct fabs_less : std::binary_function<T, T, bool> {
    fabs_less() {}
    bool operator()(T a, T b) { return fabs(a) < fabs(b); }
  };

} // end of namespace sc

#endif // end of header guard


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