Re: [Boost-users] remove_copy_if adapted as copy_if

From: Steven Watanabe (watanabesj_at_[hidden])
Date: 2008-03-09 18:22:57

AMDG

PJ Durai wrote:
> Can anyone with advanced template-fu show me to an adaptation of
> remove_copy_if to be copy_if ?
>
> I do realize you just have to negate the predicate parameter of  remove_copy_if.
>
> I would prefer to use a function that does that automatically, since
> the code would be easier for my co-workers to follow.
>
> thanks
> pj

template<class InIt, class OutIt, class Pred>
OutIt copy_if(IntIt begin, InIt end, OutIt out, Pred pred) {
    for(; begin != end; ++begin) {
        typename std::iterator_traits<InIt>::reference element(*begin);
        if(pred(element)) *out = element;
    }
}

In Christ,
Steven Watanabe