Re: [Boost-users] [lambda]How can I call function of objects in std::list while using std::for_each?

Subject: Re: [Boost-users] [lambda]How can I call function of objects in std::list while using std::for_each?
From: Ç®ÏþÃ÷ (kyleqian_at_[hidden])
Date: 2009-03-22 23:52:31

I am sorry that I did not figure out the whole intention. Beside calling
member function, I hope to delete the object immediately.
I wrote the code at first time:

std::for_each( items.rbegin(), items.rend(),
(_1->*&DiscardableItem::Discard, bind(delete_ptr(), _1)) );

after for_each, objects deleted, but Discard function did not been called.
If using Bind can do the same thing, please tell me. thanks!
2009/3/23 Alex MDC <alex.mdc_at_[hidden]>

>   But DiscardableItem::Discard does not be called. How can I make it work?
>> thanks! I think lambda can solve this problem easily.
>>
>
> You don't need boost::lambda here, you can easily solve this with
> boost::bind
>
> std::for_each( items.rbegin(), items.rend(),
> boost::bind(&DiscardableItem::Discard, _1) );
>
> If you *want* to use boost::lambda I'm sure someone else will help :)
>
> Regards,
> Alex
>
>
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