Teuchos_Utils.hpp

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// ***********************************************************************
// 
//                    Teuchos: Common Tools Package
//                 Copyright (2004) Sandia Corporation
// 
// Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive
// license for use of this work by or on behalf of the U.S. Government.
// 
// This library is free software; you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as
// published by the Free Software Foundation; either version 2.1 of the
// License, or (at your option) any later version.
//  
// This library 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
// Lesser General Public License for more details.
//  
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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// Questions? Contact Michael A. Heroux (maherou@sandia.gov) 
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#ifndef TEUCHOS_UTILS_H
#define TEUCHOS_UTILS_H

#include "Teuchos_ConfigDefs.hpp"

namespace Teuchos
{
  using std::string;

  class Utils
    {
    public:

      static void aboutBuild();

      static double chop(const double& x);

      static string toString(const double& x);

      static string toString(const int& x);

      static string toString(const unsigned int& x);

//       /**
//        * IEEE positive infinity
//        */
//       static double infinity() {return HUGE_VAL;}

//       /**
//        * IEEE negative infinity
//        */
//       static double negativeInfinity() {return -HUGE_VAL;}

#ifdef M_PI
      static double pi() {return M_PI;}
#else
      static double pi() {return 3.14159265358979323846;}
#endif

      static double getChopVal() {return chopVal_;}
      static void setChopVal(double chopVal) {chopVal_ = chopVal;}
      static std::string getParallelExtension(
        int    procRank = -1
        ,int   numProcs = -1
        );
    private:
      static double chopVal_;
    };

  inline string toString(const int& x) {return Utils::toString(x);}

  inline string toString(const unsigned int& x) {return Utils::toString(x);}

  inline string toString(const double& x) {return Utils::toString(x);}

  inline string toString(const string& x) {return x;}

} // end namespace Teuchos

#endif

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