Re: [Boost-users] Boost Lamdba: Binding to overloaded operator and templated functions???

30 Nov 2006


      Jaakko,
Thanks for your reply, I tried some of your suggestions and they are
still giving me compile errors. Here is some code that Ive been
playing with. This was compiled in VC8.

struct some_functor
{
private:
    int x_;
public:
    template<typename SOMETYPE>
    some_functor& template_foo(SOMETYPE x){
        std::cout<c:\haroon\dev\testprograms\lambda\lambda.cpp(461) : error C2780:
'const boost::lambda::lambda_functor>,detail::bind_tuple_mapper::type>>
boost::lambda::bind(const Arg1 &,const Arg2 &,const Arg3 &,const Arg4
&,const Arg5 &,const Arg6 &,const Arg7 &,const Arg8 &,const Arg9
&,const Arg10 &)' : expects 10 arguments - 3 provided
1>        c:\haroon\dev\libs\boost\include\boost\lambda\detail\bind_functions.hpp(1743)
: see declaration of 'boost::lambda::bind'
1>c:\haroon\dev\testprograms\lambda\lambda.cpp(461) : error C2780:
'const boost::lambda::lambda_functor,detail::bind_tuple_mapper::type>>
boost::lambda::bind(const Arg1 &,const Arg2 &,const Arg3 &,const Arg4
&,const Arg5 &,const Arg6 &,const Arg7 &,const Arg8 &,const Arg9
&,const Arg10 &)' : expects 10 arguments - 3 provided
1>        with
1>        [
1>            Arity=10,
1>            Act=boost::lambda::function_action<10>
1>        ]
1>        c:\haroon\dev\libs\boost\include\boost\lambda\detail\bind_functions.hpp(1710)
: see declaration of 'boost::lambda::bind'

More errors


On 11/29/06, Jaakko Järvi  wrote:
...
On Nov 28, 2006, at 10:44 PM, Haroon Khan wrote:
...
Is it possible to bind to the following functions using boost.lamdba
and if so how?
class some_class
{
    public:
       some_class operator % (int x) {
           return this
        }
template<typename T> void foo(T x){
       }
};
I use the examples given in online-documentation but it gives me a lot
of errors. I'm using VC8 on windows XP.
Not exactly sure what you are after but here are a few valid ways:
some_class s;
   int i;
   ret(var(s) % _1)(i);
   bind(&some_class::operator%, var(s), _1)(i);
   bind(&some_class::operator%, &s, _1)(i);
   bind(&some_class::foo<int>, var(s), _1)(i);
   bind(&some_class::foo<int>, &s, _1)(i);
Cheers, Jaakko
...
Thanks, Haroon
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