Creates a std::string of hex from data, data being basically any primitive data type. I have no idea under what conditions this will explode, probably many

to_hex.cpp

#include <iomanip>
#include <sstream>

std::string to_hex(const void *data, const unsigned int size) {
	std::stringstream stream;
	stream << std::uppercase << std::hex;
	const unsigned char *bytes = static_cast<const unsigned char *>(data);
	for (unsigned int i = 0; i<size; ++i) {
		stream << std::setfill('0') << std::setw(2) << static_cast<const int>(bytes[i]) << " ";
	}
	return stream.str().substr(0, stream.str().size()-1);
}