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## Class value_semantic_codecvt_helper<wchar_t>

boost::program_options::value_semantic_codecvt_helper<wchar_t> —

## Synopsis

    class value_semantic_codecvt_helper<wchar_t>
      :  : public boost::program_options::value_semantic
    {
    public:

      // protected member functions
      virtual void xparse(boost::any &, const std::vector< std::wstring > &) const;

      // private member functions
      void parse(boost::any &, const std::vector< std::string > &, bool) const;
    };

## Description

Helper conversion class for values that accept ascii strings as input. Overrides the 'parse' method and defines new 'xparse' method taking std::wstring. Depending on whether input to parse is ascii or UTF8, will recode input to Unicode, or pass it unmodified.

### `value_semantic_codecvt_helper` protected member functions

1.     virtual void
       xparse(boost::any & value_store,
              const std::vector< std::wstring > & new_tokens) const;

### `value_semantic_codecvt_helper` private member functions

1.     void parse(boost::any & value_store,
                  const std::vector< std::string > & new_tokens, bool utf8) const;

   Parses a group of tokens that specify a value of option. Stores the result in 'value_store', using whatever representation is desired. May be be called several times if value of the same option is specified more than once.

| Copyright © 2002-2004 Vladimir Prus