## Concept Filter

Filter

## Associated types

- char_type

      boost::iostreams::char_type_of<F>::type

  デバイスの文字型

- category

      boost::iostreams::category_of<F>::iterator_category

  デバイスのカテゴリ

## Notation

F
  A type playing the role of filter-type in the Filter concept.

## Type expressions

Category tag

  category must be derived from boost::iostreams::filter_tag.

| 製作著作 © 2006 Takeshi Mouri 製作著作 © 2002, 2003 Trustees of Indiana University. 製作著作 © 2001, 2002 University of Notre Dame.