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vtkOStrStreamWrapper.h
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vtkOStrStreamWrapper.h
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/*=========================================================================
Program: Visualization Toolkit
Module: vtkOStrStreamWrapper.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.
=========================================================================*/
/**
* @class vtkOStrStreamWrapper
* @brief Wrapper for ostrstream. Internal VTK use only.
*
* Provides a wrapper around the C++ ostrstream class so that VTK
* source files need not include the full C++ streams library. This
* is intended to prevent cluttering of the translation unit and speed
* up compilation. Experimentation has revealed between 10% and 60%
* less time for compilation depending on the platform. This wrapper
* is used by the macros in vtkSetGet.h.
*/
#ifndef vtkOStrStreamWrapper_h
#define vtkOStrStreamWrapper_h
#ifndef __VTK_SYSTEM_INCLUDES__INSIDE
Do_not_include_vtkOStrStreamWrapper_directly__vtkSystemIncludes_includes_it;
#endif
class VTKCOMMONCORE_EXPORT vtkOStrStreamWrapper: public vtkOStreamWrapper
{
public:
/**
* Constructor.
*/
vtkOStrStreamWrapper();
/**
* Destructor frees all used memory.
*/
~vtkOStrStreamWrapper() VTK_OVERRIDE;
/**
* Get the string that has been written. This call transfers
* ownership of the returned memory to the caller. Call
* rdbuf()->freeze(0) to return ownership to the vtkOStrStreamWrapper.
*/
char* str();
/**
* Returns a pointer to this class. This is a hack so that the old
* ostrstream's s.rdbuf()->freeze(0) can work.
*/
vtkOStrStreamWrapper* rdbuf();
//@{
/**
* Set whether the memory is frozen. The vtkOStrStreamWrapper will free
* the memory returned by str() only if it is not frozen.
*/
void freeze();
void freeze(int);
//@}
protected:
// The pointer returned by str().
char* Result;
// Whether the caller of str() owns the memory.
int Frozen;
private:
vtkOStrStreamWrapper(const vtkOStrStreamWrapper& r) VTK_DELETE_FUNCTION;
vtkOStrStreamWrapper& operator=(const vtkOStrStreamWrapper&) VTK_DELETE_FUNCTION;
};
#endif
// VTK-HeaderTest-Exclude: vtkOStrStreamWrapper.h