Convert string to Unicode hex representation and back in C++ -

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i want convert string string contains characters of given string in unicode hex notation , again. target language c++.

for example, given german word hände, want able convert string it's unicode hex notation u+0068 u+00e4 u+006e u+0064 u+0065, , original representation hände.

how can accomplished in c++?

according comment, stop use simple conversation?

std::u16string in = u"hände"; stringstream out;  (auto x : in)     out << hex << "u+" << x << " ";  cout << out.str();

output:

u+48 u+e4 u+6e u+64 u+65

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