Re: [Boost-users] [lambda]Predicate construction

From: Simon Buchan (simon_at_[hidden])
Date: 2005-09-29 17:01:01

Anakreon wrote:
>>It may be more useful to generalise this further, depending on how often 
>>it's used.  (Also, it's considered better taste to not add members that 
>>don't need to be members)  Optionally:
>>
>>// Would be safer with a overloadable transaction id type
>>bool operator==(Event const& e, int id)
>>{	// as above, but e. , not e->
>>}
>>
>>and then use: find_if(..., *_1 == tId);
> 
> It doesn't look like good practice to declare the equality operator
> compare an Event object with an int.

Indeed.  Hence the comment about having a specific transaction type. 
Only do this if it makes logical sense, of course.