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

[Murray Cumming <murrayc murrayc com>]

On Sat, 2004-03-20 at 14:30, Martin Schulze wrote:
> > My SUN Forte C++ 5.3 and 5.4 still get stuck on
> > 
> > CC -DHAVE_CONFIG_H -I.. -I.. -g -c signal.cc  -KPIC -DPIC -o
> > .libs/signal.o
> > "../sigc++/functors/functor_trait.h", line 48: Error: Function
> > templates
> > may not  have default template parameters.
> 
> This is utter nonsense.

Well, it does look like an unusual technique.

>  Again it is pure guesswork to figure out
> what keeps the FORTE from compiling. I tried to create a test to
> reproduce the error (test_functor_trait1.cc) and a possible
> solution (test_functor_trait2.cc).

Sorry, both fail:

bash-2.03$ CC test_functor_base11.cc
Could not open input file "test_functor_base11.cc".
bash-2.03$ CC test_functor_base1.cc
"test_functor_base1.cc", line 88: Error: Function templates may not have
default template parameters.
"test_functor_base1.cc", line 88: Error: Templates can only declare
classes or functions.
"test_functor_base1.cc", line 91: Error: Use ";" to terminate
statements.
"test_functor_base1.cc", line 92: Error: T_functor is not defined.
"test_functor_base1.cc", line 93: Error: A declaration was expected
instead of "}".
"test_functor_base1.cc", line 100: Error: No primary specialization for
partial specialization functor_trait.
6 Error(s) detected.
bash-2.03$
bash-2.03$
bash-2.03$
bash-2.03$ CC test_functor_base2.cc
"test_functor_base2.cc", line 88: Error: Function templates may not have
default template parameters.
"test_functor_base2.cc", line 88: Error: Templates can only declare
classes or functions.
"test_functor_base2.cc", line 96: Error: No primary specialization for
partial specialization functor_trait.
"test_functor_base2.cc", line 98: Error: Too many arguments for template
functor_trait.
4 Error(s) detected.
bash-2.03$


>  If this fails, maybe  
> is_base_and_derived<> is still causing troubles. To check this,
> I have attached test_base_and_derived.cc. Hopefully the tests
> lead to some result.

That builds without problems.

-- 
Murray Cumming
www.murrayc.com
murrayc murrayc com