RE: [Dev-C++] Template member function (C++ obviously)

[P.D. v. Z. <pa...@my...>]

Hello again,

So THAT's what I was doing wrong! *slaps forehead*
I don't have much experience with template member functions yet, it's
the first time I've used it in a real project. I called the function as
follows (from within a member function of the Config class):

ConfigParser cp;
cp.Parse("somefile.conf", this, &Config::ConfigData);

Which apparently should have been:

ConfigParser cp;
cp.Parse<Config>("somefile.conf", this, &Config::ConfigData);

From the examples and help I found online I got the impression that this
template parameter was implicit... apparently not :) First I thought it
was something I did wrong with the body of the function (not specifying
things that I should, for instance), because almost everywhere the
samples only present inlined code.
But anyway, thanks a lot! Now I can continue with my (much too
time-consuming) little project :)

Greetings,


Paul

-----Original Message-----
From: dev...@li...
[mailto:dev...@li...] On Behalf Of Hossein
Haeri
Sent: Sunday, July 27, 2003 5:34 PM
To: dev...@li...
Subject: Re: [Dev-C++] Template member function (C++ obviously)


Dear Paul,

> I hope anyone can help me, cause I'm starting to consider making the 
> entire class a template, just to get rid of the linker error. I 
> already switched from Visual C++ 6 to GCC because of one of the many 
> bugs in
> VC++6, one of which is that it doesn't seem to understand/support
> template member functions.

Oh, yes! Member templatisation is one of the C++ features that the nasty
MSVC++6 doesn't supports. One of bewildering (known) bugs of it! That's
whilst member templatatisation is completely Standard-compliant, and
that's a shame, out of thousands, for MSVC++6!

Hmmm... One point more: I know that you told the error is engendered by
the linker, but consider the following peice of code which I site
directly from TC++PL:Spec (Section C.13.6):

class Memory{
public:
  template<class T> T* get_new();
  template<class T> void release(T&);
};

template<class Allocator> void f(Allocator& m)
{
  int* p1 = m.get_new<int>();
  //Syntax Error: int after less than operator
  int* p2 = m.template get_new<int>();
  //explicit qualification
  //...
  m.release(p1);
  //template argument deduced: no explicit qualification needed
  m.release(p2);
}

Are you sure that's not arisen because of forgetting the "template
qualifier?"

Regards,
--Hossein
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