Converting string to hex

[mighty asker]

Hello. I need to convert string of decimal number to hex. I need the string to remain string (or at least the output to be string). What's the easiest way to do this?

[shadder]

use iota function

[koothkeeper]

How about the hex manipulator?

http://www.cplusplus.com/reference/ios/hex/

[mighty asker]

programmer007,
I'm not sure how this would help me.
koothkeeper,
How do I use it to assign something to something else?

[Texan40]

This is probably overkill but:

#include <iostream>
#include <string>
#include <sstream>

int main()
{
  std::string iString = "12345", hString;
  int iTemp = 0;
  std::stringstream is, hs;

  is << iString; 
  is >> iTemp; // convert string to int
  hs << std::hex << iTemp; // push int through hex manipulator
  hString = hs.str(); // store hex string

  std::cout << "Decimal = " << iString << ", Hex = " << hString << std::endl;
  return 0;
}

[mighty asker]

Thank you.
But I have a problem.

for (int i = 0; i < numbers.size(); i++)
	{
		cout << numbers[i] << " ";
	}
      //6 67 9 0
	cout << endl;
	int iTemp;
	stringstream is, hs;
	for (int i = 0; i < numbers.size(); i++)
	{
		is << numbers[i];
		is >> iTemp; // convert string to int
		hs << std::hex << iTemp; // push int through hex manipulator
		numbers[i] = hs.str();
	}
	for (int i = 0; i < numbers.size(); i++)
	{
		cout << numbers[i] << " ";
	}
       //6 66 666 6666 

[fg109]

Move line 8 into your loop. Or clear the streams at the end of your loop.

[mighty asker]

Thank you all.
I'd be grateful if someone link me some good sources of stringstream examples.