Re: [sigc] libsigc++ & Forte: template operator()

[martin-ml hippogriff de]

Am 18.03.2004 um 12:42 Uhr haben Sie geschrieben:
> On Thu, 2004-03-18 at 01:58, Murray Cumming wrote:
> > On Thu, 2004-03-18 at 00:16, Martin Schulze wrote:
> > > you could try to compile current cvs.
> > 
> > In case you don't see the same thing yourself already:
> >
> > The build is now broken with regular gcc++ 3.2.2 (RedHat 9)
> 
> The __GCC__ macro does not seem be be defined. I'm trying to  write
a
> configure-time test (see the attached code) but it fails on my SUN
Forte
> (5.3) compiler with or without the "template" word on line 31.

I don't know want went wrong on Wednesday evening. I did compile the
whole thing before committing to cvs - I will check again as soon as
possible.

> Martin, is this an appropriate test?

I think it can be stripped down. The following should do:

class Thing
{
  public:
  Thing()
  {}

  template <class T>
  void operator()(T a, T b)
  {
    T c = a + b;
    std::cout << c << std::endl;
  }
};

int main(int, char*[])
{
  Thing thing_;
  thing_.template operator()<int>(1, 2);
}


Regards,

  Martin


> Damien, does it build for you? Does it build without the template
word
> on line 31?

#include <iostream>

class Thing
{
  public:
  Thing()
  {}

  template <class T>
  void operator()(T a, T b)
  {
    T c = a + b;
    std::cout << c << std::endl;
  }
};

int main(int, char*[])
{
  Thing thing_;
  thing_.template operator()<int>(1, 2);
}