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Class template basic_vectorstream

boost::interprocess::basic_vectorstream

Synopsis

// In header: <boost/interprocess/streams/vectorstream.hpp>

template<typename CharVector, typename CharTraits> 
class basic_vectorstream {
public:
  // types
  typedef CharVector                                                               vector_type;
  typedef std::basic_ios< typename CharVector::value_type, CharTraits >::char_type char_type;  
  typedef std::basic_ios< char_type, CharTraits >::int_type                        int_type;   
  typedef std::basic_ios< char_type, CharTraits >::pos_type                        pos_type;   
  typedef std::basic_ios< char_type, CharTraits >::off_type                        off_type;   
  typedef std::basic_ios< char_type, CharTraits >::traits_type                     traits_type;

  // construct/copy/destruct
  basic_vectorstream(std::ios_base::openmode = std::ios_base::in|std::ios_base::out);
  template<typename VectorParameter> 
    basic_vectorstream(const VectorParameter &, 
                       std::ios_base::openmode = std::ios_base::in|std::ios_base::out);
  ~basic_vectorstream();

  // public member functions
  basic_vectorbuf< CharVector, CharTraits > * rdbuf() const;
  void swap_vector(vector_type &) ;
  const vector_type & vector() const;
  void reserve(typename vector_type::size_type) ;
  void clear() ;
};

Description

A basic_iostream class that holds a character vector specified by CharVector template parameter as its formatting buffer. The vector must have contiguous storage, like std::vector, boost::interprocess::vector or boost::interprocess::basic_string

basic_vectorstream public construct/copy/destruct

  1. basic_vectorstream(std::ios_base::openmode mode = std::ios_base::in|std::ios_base::out);

    Constructor. Throws if vector_type default constructor throws.

  2. template<typename VectorParameter> 
      basic_vectorstream(const VectorParameter & param, 
                         std::ios_base::openmode mode = std::ios_base::in|std::ios_base::out);

    Constructor. Throws if vector_type(const VectorParameter &param) throws.

  3. ~basic_vectorstream();

basic_vectorstream public member functions

  1. basic_vectorbuf< CharVector, CharTraits > * rdbuf() const;
  2. void swap_vector(vector_type & vect) ;

    Swaps the underlying vector with the passed vector. This function resets the read/write position in the stream. Does not throw.

  3. const vector_type & vector() const;

    Returns a const reference to the internal vector. Does not throw.

  4. void reserve(typename vector_type::size_type size) ;

    Calls reserve() method of the internal vector. Resets the stream to the first position. Throws if the internals vector's reserve throws.

  5. void clear() ;

    Calls clear() method of the internal vector. Resets the stream to the first position.


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