Package: Sequence       

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Container/mathematical-operators.h

#ifndef GRAL_GB_SEQUENCE_MATHEMATICAL_OPERATORS_H
#define GRAL_GB_SEQUENCE_MATHEMATICAL_OPERATORS_H



/* ------------------------------------------------------------

    Copyright (C) 2007 - 2009 Guntram Berti

    This file is part of the Grid Algorithms Library (GrAL),
    available at http://gral.berti-cmm.de

    GrAL is distributed under the MIT license,
    see the file LICENSE or http://gral.berti-cmm.de/license

--------------------------------------------------------------- */


#include <cmath>

namespace GrAL {

  namespace mathematical_operators {

    struct floor {
      template<class T> T operator()(T const& t) const { return std::floor(t);}
    };
  
    struct ceil {
      template<class T> T operator()(T const& t) const { return std::ceil(t);}
    };

    struct round {
      template<class T> T operator()(T const& t) const { return std::ceil(t-0.5);}
    };

    template<class U, class T> 
    inline T clamp(U const& low, U const& high, T const& t) 
    { return (t < low ? T(low) : (t > high ? T(high) : t)); }

    
  } // namespace mathematical_operators

} // namespace GrAL


#endif

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©  Guntram Berti 1997-2009. See the GrAL Homepage for up-to-date information.

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