Converting Integers to Hex Strings in C

Despite its simplicity, converting integers to hex strings in C can pose challenges for developers. Unlike C, C lacks a native method for this conversion.

However, one can harness the power of the library to achieve this task. The std::hex manipulator plays a crucial role in this process. By inserting it into the output stream, integers can be printed in hexadecimal format.

std::cout 
To capture the hex string representation of an integer for later use, consider using a std::stringstream object.
std::stringstream stream;
stream 
In the above example, the 0x prefix can be added to the initial 
Additional manipulators of note include std::oct (octal) and std::dec (decimal).
However, the std::hex manipulator by default produces string representations that contain only the necessary number of hex digits. If a specific width is desired, std::setfill and std::setw can be used.
stream 
Finally, a generic function can be defined to handle integer-to-hex conversions:
template
std::string int_to_hex( T i )
{
  std::stringstream stream;
  stream