UnaryPredicates.h

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//============================================================================
//  The contents of this file are covered by the Viskores license. See
//  LICENSE.txt for details.
//
//  By contributing to this file, all contributors agree to the Developer
//  Certificate of Origin Version 1.1 (DCO 1.1) as stated in DCO.txt.
//============================================================================
 
//============================================================================
//  Copyright (c) Kitware, Inc.
//  All rights reserved.
//  See LICENSE.txt for details.
//
//  This software is distributed WITHOUT ANY WARRANTY; without even
//  the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
//  PURPOSE.  See the above copyright notice for more information.
//============================================================================
#ifndef viskores_UnaryPredicates_h
#define viskores_UnaryPredicates_h
 
#include <viskores/TypeTraits.h>
#include <viskores/internal/ExportMacros.h>
 
namespace viskores
{
 
struct IsZeroInitialized
{
  template <typename T>
  VISKORES_EXEC_CONT bool operator()(const T& x) const
  {
    return (x == viskores::TypeTraits<T>::ZeroInitialization());
  }
};
 
struct NotZeroInitialized
{
  template <typename T>
  VISKORES_EXEC_CONT bool operator()(const T& x) const
  {
    return (x != viskores::TypeTraits<T>::ZeroInitialization());
  }
};
 
struct LogicalNot
{
  template <typename T>
  VISKORES_EXEC_CONT bool operator()(const T& x) const
  {
    return !x;
  }
};
 
} // namespace viskores
 
#endif //viskores_UnaryPredicates_h