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76 lines
2.0 KiB
C
76 lines
2.0 KiB
C
3 weeks ago
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/*=========================================================================
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Program: Visualization Toolkit
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Module: vtkNumberToString.h
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Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
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All rights reserved.
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See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
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This software is distributed WITHOUT ANY WARRANTY; without even
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the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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PURPOSE. See the above copyright notice for more information.
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=========================================================================*/
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/**
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* @class vtkNumberToString
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* @brief Convert floating and fixed point numbers to strings
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*
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* This class uses the double-conversion library to convert floating point and
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* fixed point numbers to ASCII versions that are represented without
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* numerical precision errors.
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*
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* Typical use:
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*
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* @code{cpp}
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* #include "vtkNumberToString.h"
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* vtkNumberToString convert;
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* float a = 1.0f/3.0f;
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* std::cout << convert(a) << std::endl;
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* @endcode
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*/
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#ifndef vtkNumberToString_h
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#define vtkNumberToString_h
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#include "vtkIOCoreModule.h" // For export macro
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#include "vtkTypeTraits.h"
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#include <ostream>
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#include <string>
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class VTKIOCORE_EXPORT vtkNumberToString
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{
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public:
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struct TagDouble
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{
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double Value;
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TagDouble(const double& value)
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: Value(value)
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{
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}
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};
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struct TagFloat
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{
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float Value;
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TagFloat(const float& value)
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: Value(value)
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{
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}
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};
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template <typename T>
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const T& operator()(const T& val) const
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{
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return val;
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}
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const TagDouble operator()(const double& val) const { return TagDouble(val); }
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const TagFloat operator()(const float& val) const { return TagFloat(val); }
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};
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VTKIOCORE_EXPORT ostream& operator<<(ostream& stream, const vtkNumberToString::TagDouble& tag);
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VTKIOCORE_EXPORT ostream& operator<<(ostream& stream, const vtkNumberToString::TagFloat& tag);
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#endif
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// VTK-HeaderTest-Exclude: vtkNumberToString.h
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