Convert hex string to little endian

Question

I would like to convert string representation of hex for example:

"18ec1975b97174"

to little endian string. I'm familiar with python so I can achieve that with

struct.pack("<L", "18ec1975b97174")

What will be equivalent in C++? It is possible to work on string or should I convert that to numeric value first?

Answer 1

If you are using a machine that uses little endian, in C++ you can use the NTOH functions .

These will convert numbers in network order (big endian) to host order (litle endian).

This will only work on numeric values though.