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## Struct push_back

boost::xpressive::op::push_back — `push_back` is a PolymorphicFunctionObject for pushing an element into the back of a container.

## Synopsis

    // In header: <boost/xpressive/regex_actions.hpp>

    struct push_back {
      // types
      typedef void result_type;

      // public member functions
      template<typename Sequence, typename Value>
        void operator()(Sequence &, Value const &) const;
    };

## Description

### `push_back` public member functions

1.     template<typename Sequence, typename Value>
         void operator()(Sequence & seq, Value const & val) const;

   Equivalent to `seq.push_back(val)`.

   Parameters: |
   `seq` | The sequence into which the value should be pushed.
   `val` | The value to push into the sequence.
   Returns: | `void`