Re: [Boost-users] boost::lambda to replace a for loop

From: Marshall Clow (marshall_at_[hidden])
Date: 2008-07-27 02:31:05

At 12:00 AM -0500 7/27/08, Meryl Silverburgh wrote:
>Hi,
>
>Can you please tell me if there is an easy way to replace the
>following for loop using boost:lambda?
>
>I have a vector of A, i want to call 'aMethod of each A, and stop it
>when one of them return true.
>
>  for (vector<A*>::const_iterator iter = aList.begin() ; iter !=
>aList.end(); ++iter) {
>
>       A* anA = (*iter);
>
>// break out the for loop if aMethod return true;
>       if (anA->aMethod()){
>	break;
>     }

Isn't this what std::find_if does?

        std::find_if ( aList.begin (), aList.end (); bind ( A::Method, *_1 ));
[ Code not compiled, just composed in email client, but you get the idea ]

<http://www.boost.org/doc/libs/1_35_0/doc/html/lambda/le_in_details.html#member_functions_as_targets>

-- 
-- Marshall
Marshall Clow     Idio Software   <mailto:marshall_at_[hidden]>
It is by caffeine alone I set my mind in motion.
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It is by caffeine alone I set my mind in motion.