Reading binary file : binary file « File Stream « C++ Tutorial






  1. C++ Tutorial
  2. File Stream
  3. binary file
#include <iostream.h>
#include <fstream.h>

int main () {
  char * buffer;
  long size;
  ifstream file ("example.dat", ios::in|ios::binary|ios::ate);
  size = file.tellg();
  file.seekg (0, ios::beg);
  buffer = new char [size];
  file.read (buffer, size);
  file.close();

  cout << "the complete file is in a buffer";

  delete[] buffer;
  return 0;
}

the complete file is in a buffer"




12.3.binary file
12.3.1.Open a binary file
12.3.2.Reading binary file
12.3.3.Open a binary file and read
12.3.4.Output a binary file in hexadecimal
12.3.5.Write Unformatted Binary Data to a File
12.3.6.Use read() to input blocks of binary data.
12.3.7.Use write() to output a block of binary data.
12.3.8.Creating a randomly accessed file
12.3.9.Append to a binary file
12.3.10.Unformatted and Binary I/O