C++ Universal Unicodes -

i had quick question , couldn't find answer anywhere else. trying make universal function return proper unicode (instead of making literals) shown below in std::string getunicode() function. \xe2\x99\xa , cardtype being treated 2 separate strings in output, causes "?" followed cardtype number.

in case:

cout << "\xe2\x99\xa0"; //prints out symbol, cout << "\xe2\x99\xa" << 0; //prints out "?" followed 0. bad cout << card.getunicode(); //prints out "?" followed 0. bad 

any ideas? 4-6 month beginner c++.

#ifndef card_h #define card_h  #include <map> #include <sstream> #include <string>  enum card_type {spade = 0, club = 3, heart = 5, diamond = 6};  class card {      private:         int number;         card_type cardtype;      public:         card(card_type, int);         void displaycard();          int getnumber() {             return number;         }          card_type getcardtype() {             return cardtype;         }          /* returns unicode value card type */         std::string getunicode() {             std::stringstream ss;             ss << "\xe2\x99\xa" << cardtype;             return ss.str();         }  };  #endif 

this talked in c++ standard, section 2.14.5, paragraph 13:

[example:

"\xa" "b" 

contains 2 characters '\xa' , 'b' after concatenation (and not single hexadecimal character '\xab'). — end example ]

the problem '\xa' being treated single character (hex value 0xa 10 in decimal, maps \n (line feed) character in ascii/utf). cardtype not "appended" escape sequence. in fact, escape sequence evaluated @ compile time, not runtime (which when card type gets evaluated).

in order work, need like:

 ss << "\xe2\x99" << static_cast<char>(0xa0 + cardtype);