boost::algorithm::trim_right_if — Right trim - parametric.
Synopsis
// In header: <boost/algorithm/string/trim.hpp>
template<typename SequenceT,typename PredicateT>voidtrim_right_if(SequenceT& Input,PredicateT IsSpace);
Description
Remove all trailing spaces from the input. The supplied predicate is used to determine which characters are considered spaces. The input sequence is modified in-place.