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Hex to string, kinda?

Started by Eponick Nov 17, 2004 at 2:48 PM 4 replies 900+ views

Original Post

Nov 17, 2004 at 2:48 PM

I was wondering if theres a function or something to convert hex to a string, kinda. Example: I want to convert 0x82 ('\x82') to "82", or 0xE2 to "E2", etc.

snk_kid

Nov 17, 2004 at 2:53 PM

what programming language are you using.

Eponick

Nov 17, 2004 at 2:54 PM

Erm, yeah. Sorry I forgot to mention it.
C++, MSVC 6.0 is the compiler/IDE if needed

snk_kid

Nov 17, 2004 at 3:00 PM

here is one way (not the only way), try this:

#include <string>#include <sstream>#include <iomanip>#include <iostream>int main() {   int foo = 0xE2;   std::ostringstream oss;   oss << std::setbase(16) << foo;   std::string s = oss.str();   std::cout << s << std::endl;}

Endogenous

Nov 17, 2004 at 4:25 PM

int x = 0x0F;char buffer[30];snprintf(buffer,30,"%.2x",x);

Would probably also do the trick, if you feel like using string.h.

Aprosenf

Nov 17, 2004 at 7:22 PM

char hexDigits[16] = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'}; std::string HexCharToString(unsigned char x){	std::string result(2); 	result[0] = hexDigits[x >> 4]; // Upper 4 bits	result[1] = hexDigits[x & 0x0F]; // Lower 4 bits; 	return result;}

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