Re: [Boost-users] [boost::bind] How use with fn objects?

From: Rene Rivera (grafik.list_at_[hidden])
Date: 2005-08-29 14:29:47

BRIDGES Dick wrote:
> The documentation gives examples for
>   int operator()(int a, int b)...
>   bool operator()(long a, long b)...
> that use _1 to represent the first parameter (i.e., 'a').
> 
> I'm trying to pass a function object that takes no
> parameters to a boost::thread constructor and cannot
> get it right.
> 
> <my_code>
> class Foo {
>     void
>     operator()() { /* do something */ return; }
> }
> 
> int
> main( int argc, char **argv ) {
> 
>     Foo f;
>     boost::thread doit( boost:bind<void>(f,_1)() );
>     doit.join();
> 
>     return 0;
> }</my_code>

Either:

int
main( int argc, char **argv ) {
     Foo f;
     boost::thread doit( boost:bind(Foo::operator(),&f)() );
     doit.join();
     return 0;
}

Or:

int
main( int argc, char **argv ) {
     Foo f;
     boost::thread doit( f );
     doit.join();
     return 0;
}

Should work.

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