Class template last_value

boost::last_value — Evaluate an InputIterator sequence and return the last value in the sequence.

Synopsis

template<typename T> 
class last_value {
public:
  // types
  typedef T result_type;

  // invocation
  template<typename InputIterator> 
    result_type operator()(InputIterator, InputIterator) const;
};

Description

last_value invocation

  1. template<typename InputIterator> 
  result_type operator()(InputIterator first, InputIterator last) const;
    Effects:

    Attempts to dereference every iterator in the sequence [first, last). Swallows boost::expired_slot exceptions thrown by failed dereference attempts.
    Returns:

    The result of the last successful iterator dereference.
    Throws:

    boost::no_slots_error if no iterators were successfully dereferenced, unless the template type of last_value is void or optional<T>.

Specializations