vtkNumberToString.h

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/*=========================================================================
 
  Program:   Visualization Toolkit
  Module:    vtkNumberToString.h
 
  Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
  All rights reserved.
  See Copyright.txt or http://www.kitware.com/Copyright.htm 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 vtkNumberToString_h
#define vtkNumberToString_h
 
#include "vtkIOCoreModule.h" // For export macro
#include "vtkTypeTraits.h"
 
#include <ostream>
#include <string>
 
class VTKIOCORE_EXPORT vtkNumberToString
{
public:
  struct TagDouble
  {
    double Value;
    TagDouble(const double& value)
      : Value(value)
    {
    }
  };
 
  struct TagFloat
  {
    float Value;
    TagFloat(const float& value)
      : Value(value)
    {
    }
  };
 
  template <typename T>
  const T& operator()(const T& val) const
  {
    return val;
  }
  const TagDouble operator()(const double& val) const { return TagDouble(val); }
  const TagFloat operator()(const float& val) const { return TagFloat(val); }
};
 
VTKIOCORE_EXPORT ostream& operator<<(ostream& stream, const vtkNumberToString::TagDouble& tag);
VTKIOCORE_EXPORT ostream& operator<<(ostream& stream, const vtkNumberToString::TagFloat& tag);
 
#endif
// VTK-HeaderTest-Exclude: vtkNumberToString.h