feedc0de/boost_range
1
0
Fork 0
forked from boostorg/range
Code Pull Requests Activity

[range] - merge the tested changes from the trunk in preparation for the 1.46 release.

Browse Source 
[SVN r67905]
This commit is contained in:
Neil Groves
2011-01-10 06:35:02 +00:00
parent 674be9dfa0
commit 6d46ce412f
143 changed files with 5587 additions and 2015 deletions
Download Patch File Download Diff File Expand all files Collapse all files

23
include/boost/range/concepts.hpp
View File

@ -148,13 +148,16 @@ namespace boost {
Iterator i2(++i);
boost::ignore_unused_variable_warning(i2);
Iterator i3(i++);
boost::ignore_unused_variable_warning(i3);
// deliberately we are loose with the postfix version for the single pass
// iterator due to the commonly poor adherence to the specification means that
// many algorithms would be unusable, whereas actually without the check they
// work
(void)(i++);
BOOST_DEDUCED_TYPENAME boost::detail::iterator_traits<Iterator>::reference r1(*i);
boost::ignore_unused_variable_warning(r1);
BOOST_DEDUCED_TYPENAME boost::detail::iterator_traits<Iterator>::reference r2(*i++);
BOOST_DEDUCED_TYPENAME boost::detail::iterator_traits<Iterator>::reference r2(*(++i));
boost::ignore_unused_variable_warning(r2);
}
private:
@ -178,6 +181,20 @@ namespace boost {
BOOST_DEDUCED_TYPENAME ForwardIteratorConcept::traversal_category,
forward_traversal_tag
>));
BOOST_CONCEPT_USAGE(ForwardIteratorConcept)
{
// See the above note in the SinglePassIteratorConcept about the handling of the
// postfix increment. Since with forward and better iterators there is no need
// for a proxy, we can sensibly require that the dereference result
// is convertible to reference.
Iterator i2(i++);
boost::ignore_unused_variable_warning(i2);
BOOST_DEDUCED_TYPENAME boost::detail::iterator_traits<Iterator>::reference r(*(i++));
boost::ignore_unused_variable_warning(r);
}
private:
Iterator i;
#endif
};