Re: [sigc] ANNOUNCE: libsigc++ 1.9.11
- From: Martin Schulze <martin-ml hippogriff de>
- To: Roel Vanhout <roel riks nl>
- Cc: libsigc-list gnome org
- Subject: Re: [sigc] ANNOUNCE: libsigc++ 1.9.11
- Date: Thu, 30 Oct 2003 21:47:51 +0100
Am 2003.10.30 12:23 schrieb(en) Roel Vanhout:
[snip]
Do you know whether a conversion from int to double also triggers
a warning?)
I just checked, it doesn't.
I've changed float to double in the tests.
Could you try to compile something like:
#include <iostream>
struct foo {
template <class T1>
void test(T1 p) { std::cout << p << std::endl; }
};
int main() {
foo f;
f.test<unsigned int>(3); // variant 1
// f.template test<unsigned int>(3); // variant 2
// f.template void test<unsigned int>(3); // variant 3
// f.void test<unsigned int>(3); // variant 4
return 0;
}
and pass me the result?
Variant 1: compiles ok, without a warning.
Variant 2: compiles ok, without a warning.
[snip]
Another problem was in bind_return.h on line 21. It reads
{ functor_.template operator()<typename type_trait<T_arg1>::pass>
Changing that to
{ functor_. operator()<typename type_trait<T_arg1>::pass>
makes it work.
Strange that variant 2 in the example above compiles ok, then.
I'll add
#ifdef MSVC
#define LIBSIGC_TEMPLATE_PREFIX
#else
#define LIBSIGC_TEMPLATE_PREFIX template
#endif
and we can write LIBSIGC_TEMPLATE_PREFIX in template function
instantiations. I wonder what Stroustrup has to say on this topic?!
Another thing I found is on line 516 of slot.h There is a workaround
for gcc there (at least that's what the comments say) and the msvc
compiles chokes on that line. Maybe that part should be surrounded
with compiler-ifdef's.
That's right. I'll comment it out for now. The problem so far occurs
with gcc-3.2 if you write "using namespace SigC" in your code. I have
to check different compilers.
That's all for now, I don't have time to go any further. Please let
me know if you want me to do more tests.
I'll send you a test to check for the "using namespace SigC" problem.
Thanks for your investigations!
Regards,
Martin
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