Steven Watanabe:

AMDG

On 11/23/2013 11:12 AM, Ami Tavory wrote:

...

<snip> typedef filter_iterator, vector<string>::const_iterator> filter_it_t; auto r = make_iterator_range(filter_it_t(fn, ss.begin()), filter_it_t(fn, ss.end())); <snip>

yields an executable that crashes with {{{ Segmentation fault (core dumped) }}}

<snip>

You're not constructing the filter_iterators correctly. From the documentation:

filter_iterator(Predicate f, Iterator x, Iterator end = Iterator());

Effects:

Constructs a filter_iterator where m_iter is either the first position in the range [x,end) such that f(*m_iter) == true or else``m_iter == end``. The member m_pred is constructed from f and m_end from end.

You need to pass the end iterator as well. (Or use the Boost.Range version)

In Christ, Steven Watanabe

Many thanks!