Serialization - BOOST_STATIC_WARNING

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Motivation

Usage

template<class Derived, class Base>
const void_cast_detail::void_caster &
void_cast_register(
    Derived const * derived = NULL, 
    Base * const base = NULL
);

This function "registers" a pair of related types. It stores the fact that Derived is immediately derived from Base in a global table.

• This "registration" can be invoked anywhere in the program. The table is built at pre-runtime and is available anywhere else in the program.
• only adjacent base/derived pairs need be registered. That is,

  
    void_cast_register<A, B>();
    void_cast_register<B, C>();
    

  automatically derives the fact that A can be upcast to C and vice-versa.

void *
void_upcast(
    extended_type_info const & derived_type,
    extended_type_info const & base_type,
    void * const t 
);

void *
void_downcast(
    extended_type_info const & derived_type,
    extended_type_info const & base_type,
    void * const t 
);

These functions cast a void pointer from one type to another. The source and definition types are specified by passing references to the corresponding extended_type_info records. An attempt to cast between types not "registered" with void_cast_register will throw a boost::archive::archive_exception with value equal to unregistered_cast

© Авторское правоРоберт Рэми2002-2004. Распространяется под лицензией Boost Software License, версия 1.0. (См. сопроводительный файл LICENSE_1_0.txt или копию по адресу http://www.boost.org/LICENSE_1_0.txt)

Статья Serialization - BOOST_STATIC_WARNING раздела может быть полезна для разработчиков на c++ и boost.

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