Copying non null-terminated unsigned char array to std::string

Question

If the array was null-terminated this would be pretty straight forward:

unsigned char u_array[4] = { \'a\', \'s\', \'d\', \'\\0\' };
std::string str         


        

Answer 1

std::string has a constructor taking an array of char and a length.

unsigned char u_array[4] = { 'a', 's', 'd', 'f' };
std::string str(reinterpret_cast(u_array), sizeo(u_array));