Hexadecimal to binary operation Post: 302901431

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Top Forums Programming Hexadecimal to binary operation Post 302901431 by emily on Tuesday 13th of May 2014 06:11:36 PM

05-13-2014

Registered User

Hexadecimal to binary operation

Dear all,
I am trying to write c-program [2] to read the following file [1] containing hexadecimal values (snippet of big data file).
I want to combine two hexadecimal values together like A0A03E01 and then would like to have the binary equivalent to perform further test on it. Unfortunately, it failed to give me binary equivalent.

This project is kind of urgent for me, any help is highly appreciated.

thanking you very much,
emily,

[1]
---------------------------

Code:

file.dat:
0x1A0A0
0x13E01
0x10400
0x12A03
0x1C010

[2]
--------------------------

Code:

#include <iostream>
#include <fstream>
#include <sstream>
#include <bitset>
#include <string>
#include <limits>
#include <stdlib.h>
using namespace std;

int main(int argc, char *argv[])
{
  string data16, data32;
  unsigned value;
  bool dodebug = true;

  //open datafile
  std::fstream datafile;
  datafile.open("file.dat",std::fstream::in);

  stringstream ss;
  while(!datafile.eof()) {
    ss.clear();
    datafile >> ws;
    datafile >> data16;
    datafile >> data32;
    if(dodebug)   cout<<"data :"<< data16<< ", "<< data32<<endl;
    
    ss << std::hex << data16 << data32;
    ss >> value;
    bitset<32> data(value);
  }
}

emily

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LEARN ABOUT OPENDARWIN

load_datafile

load_datafile(3alleg4)						  Allegro manual					    load_datafile(3alleg4)

NAME

       load_datafile - Loads a datafile into memory. Allegro game programming library.

SYNOPSIS

       #include <allegro.h>

       DATAFILE *load_datafile(const char *filename);

DESCRIPTION

       Loads  a datafile into memory in one go. If the datafile has been encrypted, you must first call packfile_password() to set the appropriate
       key. If the datafile contains truecolor graphics, you must set the video mode or call set_color_conversion() before loading it. Example:

	  /* Load the resources for our game. */
	  DATAFILE *dat = load_datafile("game.dat");
	  if (!dat)
	     abort_on_error("Couldn't load sound resources!");
	  /* Use resources. */
	  ...
	  /* Destroy them when we don't need them any more. */
	  unload_datafile(dat);

RETURN VALUE

       Returns a pointer to the DATAFILE, or NULL on error. Remember to free this DATAFILE later to avoid memory leaks.

SEE ALSO

       load_datafile_callback(3alleg4),       unload_datafile(3alleg4),       load_datafile_object(3alleg4),	    set_color_conversion(3alleg4),
       fixup_datafile(3alleg4),  packfile_password(3alleg4),  find_datafile_object(3alleg4), register_datafile_object(3alleg4), excustom(3alleg4),
       exdata(3alleg4), exexedat(3alleg4), exgui(3alleg4), exsprite(3alleg4), exunicod(3alleg4)

Allegro 							   version 4.4.2					    load_datafile(3alleg4)

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