C++ string function return statement -

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i'm trying add int string in return statement so:

string birthday::asstring() {     return -> day + "/" + -> month + "/" + -> year; }

and getting following error:

error: expression must have integral or unscoped enum type

i'm kind of new c++.

easiest way trying use ostringstream(found in header <sstream>):

string birthday::asstring() {     std::ostringstream out;     out << -> day << "/" << -> month << "/" << -> year;     return out.str(); }

you getting error show because c++ not know how add integer string.

edit: suggest in m m.'s answer since c++11 there option, namely use function std::to_string.


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