Lack of pointer Typedef in STL container

Collapse
This topic is closed.
X
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • ManicQin
    #1

    Lack of pointer Typedef in STL container

    Looking at vector's header I can see that they provided me with a:
    typedef A::reference reference;

    But there's no typedef for a pointer to A...

    Don't get me wrong I can easily write vector<someting >::value_type *
    but it makes me wonder why supplying a typedef for reference
    and not for pointer? Any special reasons you know of?
    Tags: None
    • Victor Bazarov
      #2
      Re: Lack of pointer Typedef in STL container

      ManicQin wrote:
      Looking at vector's header I can see that they provided me with a:
      typedef A::reference reference;
      >
      But there's no typedef for a pointer to A...
      >
      Don't get me wrong I can easily write vector<someting >::value_type *
      but it makes me wonder why supplying a typedef for reference
      and not for pointer? Any special reasons you know of?
      The type 'reference' is returned by 'back' or 'front'. Probably due
      to the presence of 'vector<bool>' specialisation, which does *not*
      have 'reference' as the synonym to 'bool&' prompted the creation of
      the 'reference' type. 'pointer' is simply not needed anywhere.

      Correct me, somebody.

      V
      --
      Please remove capital 'A's when replying by e-mail
      I do not respond to top-posted replies, please don't ask


        Comment

        • Barry
          #3
          Re: Lack of pointer Typedef in STL container

          On Apr 10, 10:20 pm, ManicQin <Manic...@gmail .comwrote:
          Looking at vector's header I can see that they provided me with a:
          typedef A::reference reference;
          >
          But there's no typedef for a pointer to A...
          >
          Don't get me wrong I can easily write vector<someting >::value_type *
          but it makes me wonder why supplying a typedef for reference
          and not for pointer? Any special reasons you know of?
          C++03 has "pointer" typedef.

          What's implementation you checked out?

          Here I check out sgi, it has "pointer"
          VC2005, it has

            Comment

            • ManicQin
              #4
              Re: Lack of pointer Typedef in STL container

              On Apr 10, 5:48 pm, Barry <dhb2...@gmail. comwrote:
              On Apr 10, 10:20 pm, ManicQin <Manic...@gmail .comwrote:
              >
              Looking at vector's header I can see that they provided me with a:
              typedef A::reference reference;
              >
              But there's no typedef for a pointer to A...
              >
              Don't get me wrong I can easily write vector<someting >::value_type *
              but it makes me wonder why supplying a typedef for reference
              and not for pointer? Any special reasons you know of?
              >
              C++03 has "pointer" typedef.
              >
              What's implementation you checked out?
              >
              Here I check out sgi, it has "pointer"
              VC2005, it has
              You're right, The first time I checked in VS6 but after your post I
              checked my VS Express and found it.
              Thanks.

                Comment

                Previous template Next
                Working...