function that returns a constant reference

This is a discussion on function that returns a constant reference within the C++ Programming forums, part of the General Programming Boards category; Code: std::string const & user::nickname() const { return m_data->nickname; } Here what is the meaning of & used? THanks....

  1. 06-30-2012 #1
    gunitinug
    gunitinug is offline
    Registered User
    Join Date
    Sep 2011
    Posts
    24

    function that returns a constant reference

    Code:
    std::string const & user::nickname() const
{
   return m_data->nickname;
}
    Here what is the meaning of & used? THanks.
  2. 06-30-2012 #2
    Elysia
    Elysia is offline
    C++まいる！Cをこわせ！
    Join Date
    Oct 2007
    Posts
    21,172
    Like the title says, it means a (constant) reference.
    Quote Originally Posted by Adak View Post
    io.h certainly IS included in some modern compilers. It is no longer part of the standard for C, but it is nevertheless, included in the very latest Pelles C versions.
    Quote Originally Posted by Salem View Post
    You mean it's included as a crutch to help ancient programmers limp along without them having to relearn too much.

    Outside of your DOS world, your header file is meaningless.
    For information on how to enable C++11 on your compiler, look here.
    よく聞くがいい！私は天才だからね！ ^_^
  3. 06-30-2012 #3
    gunitinug
    gunitinug is offline
    Registered User
    Join Date
    Sep 2011
    Posts
    24
    THX elysia
« Previous Thread | Next Thread »
Popular pages Recent additions subscribe to a feed

Similar Threads

  1. Pass by constant reference
    By Canadian0469 in forum C++ Programming
    Replies: 4
    Last Post: 11-15-2008, 02:25 PM
  2. Assigning an object variable to a constant reference
    By Canadian0469 in forum C++ Programming
    Replies: 18
    Last Post: 11-10-2008, 09:48 AM
  3. Typecasting, temporary variables and call by (constant) reference
    By forloRn_ in forum C++ Programming
    Replies: 9
    Last Post: 01-29-2006, 05:57 PM
  4. Function creates memory space and returns reference to class
    By Thantos in forum C++ Programming
    Replies: 10
    Last Post: 06-05-2004, 07:40 PM
  5. function returns int *
    By aripata in forum C Programming
    Replies: 1
    Last Post: 09-06-2001, 07:27 AM

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21