BinaryFile.h

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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
 
#ifndef BinaryFile_h
#define BinaryFile_h
 
#include "vtkByteSwap.h"
#include <fstream>
#include <string>
 
class BinaryFile
{
public:
  BinaryFile(const char* fname);
  ~BinaryFile();
 
  bool good() const;
 
  template <typename T>
  void ReadArray(T* array, size_t nitems)
  {
    this->InFile.read((char*)array, nitems * sizeof(T));
    if (this->NeedSwap)
    {
#ifdef VTK_WORDS_BIGENDIAN
      vtkByteSwap::SwapBERange(array, nitems);
#else
      vtkByteSwap::SwapLERange(array, nitems);
#endif
    }
  }
 
  template <typename T>
  T ReadOne()
  {
    T x;
    this->ReadArray(&x, 1);
    return x;
  }
 
  int ReadInt();
 
  double ReadDouble();
 
  void ReadCString(char* s, size_t n = 128);
 
  std::string ReadStdString();
 
  static int SwapInt(int x);
 
  void SetSwap(bool val);
 
private:
  std::ifstream InFile;
  bool NeedSwap;
};
 
#endif // BinaryFile_h