Re: template specialization for pointer-to-type

From:
Barry <dhb2000@gmail.com>
Newsgroups:
comp.lang.c++
Date:
Mon, 30 Jun 2008 19:30:09 -0700 (PDT)
Message-ID:
<430c6cf7-8260-4c46-88f3-4ed2eebf5ab8@k13g2000hse.googlegroups.com>
On 7=D4 1=C8=D5, =C9=CF=CE=E72=CA=B159=B7=D6, ".rhavin grobert" <cl...@yah=
oo.de> wrote:

guess you have the following:

_________________________________________________
template <class T>
class CQVector
{
public:
        // find an element, returns index or -1 if none is found
        int find(int id) const;
private:
        std::vector<T> m_vec;

};

template <class T>
int CQVector<T>::find(int id) const
{
        int iCnt = m_vec.size();
        while (iCnt-->0)
        {
                if (m_vec[iCnt].ID() == id)
                        break;
        }
        return iCnt;}

_________________________________________________

this finds an element in the vector by calling elements fn ID() and
compiles for all structures/classes that have an ID() memeber-fn
returning something comparable to int.

now i also want the possibility to store pointers, eg

CQVector<MyClass*> m_foo;

and need some specialisation that does a...
_________________________________________________

        int iCnt = m_vec.size();
        while (iCnt-->0)
        {
                if (m_vec[iCnt]->ID() == id)
                        break;
        }
        return iCnt;
_________________________________________________

what syntax is need ed for the specialisation?
something like template<class*T> doesnt work...


template <class T>
class CQVector<T*>
{
  ...
};

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