Boost
C++ Libraries
...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
template< class ForwardRange, class UnaryPredicate > typename range_iterator<ForwardRange>::type remove_if(ForwardRange& rng, UnaryPredicate pred); template< class ForwardRange, class UnaryPredicate > typename range_iterator<const ForwardRange>::type remove_if(const ForwardRange& rng, UnaryPredicate pred); template< range_return_value re, class ForwardRange, class UnaryPredicate > typename range_return<ForwardRange,re>::type remove_if(ForwardRange& rng, UnaryPredicate pred); template< range_return_value re, class ForwardRange, class UnaryPredicate > typename range_return<const ForwardRange,re>::type remove_if(const ForwardRange& rng, UnaryPredicate pred);
remove_if removes from
rng all of the elements
x for which pred(x)
is true. The versions of
remove_if that return
an iterator, return an iterator new_last
such that the range [begin(rng), new_last) contains no elements where pred(x)
is true. The iterators in
the range [new_last, end(rng)) are dereferenceable, but the elements
are unspecified.
Defined in the header file boost/range/algorithm/remove_if.hpp
ForwardRange is a
model of the Forward
Range Concept.
ForwardRange is mutable.
UnaryPredicate is
a model of the PredicateConcept.
ForwardRange's value
type is convertible to UnaryPredicate's
argument type.
Linear. remove_if performs
exactly distance(rng)
applications of pred.