diff -r 666f914201fb -r 2fe1408b6811 epoc32/include/stdapis/boost/utility/base_from_member.hpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/epoc32/include/stdapis/boost/utility/base_from_member.hpp Tue Mar 16 16:12:26 2010 +0000 @@ -0,0 +1,87 @@ +// boost utility/base_from_member.hpp header file --------------------------// + +// Copyright 2001, 2003, 2004 Daryle Walker. Use, modification, and +// distribution are subject to the Boost Software License, Version 1.0. (See +// accompanying file LICENSE_1_0.txt or a copy at +// .) + +// See for the library's home page. + +#ifndef BOOST_UTILITY_BASE_FROM_MEMBER_HPP +#define BOOST_UTILITY_BASE_FROM_MEMBER_HPP + +#include +#include +#include +#include + + +// Base-from-member arity configuration macro ------------------------------// + +// The following macro determines how many arguments will be in the largest +// constructor template of base_from_member. Constructor templates will be +// generated from one argument to this maximum. Code from other files can read +// this number if they need to always match the exact maximum base_from_member +// uses. The maximum constructor length can be changed by overriding the +// #defined constant. Make sure to apply the override, if any, for all source +// files during project compiling for consistency. + +// Contributed by Jonathan Turkanis + +#ifndef BOOST_BASE_FROM_MEMBER_MAX_ARITY +#define BOOST_BASE_FROM_MEMBER_MAX_ARITY 10 +#endif + + +// An iteration of a constructor template for base_from_member -------------// + +// A macro that should expand to: +// template < typename T1, ..., typename Tn > +// base_from_member( T1 x1, ..., Tn xn ) +// : member( x1, ..., xn ) +// {} +// This macro should only persist within this file. + +#define BOOST_PRIVATE_CTR_DEF( z, n, data ) \ + template < BOOST_PP_ENUM_PARAMS(n, typename T) > \ + explicit base_from_member( BOOST_PP_ENUM_BINARY_PARAMS(n, T, x) ) \ + : member( BOOST_PP_ENUM_PARAMS(n, x) ) \ + {} \ + /**/ + + +namespace boost +{ + +// Base-from-member class template -----------------------------------------// + +// Helper to initialize a base object so a derived class can use this +// object in the initialization of another base class. Used by +// Dietmar Kuehl from ideas by Ron Klatcho to solve the problem of a +// base class needing to be initialized by a member. + +// Contributed by Daryle Walker + +template < typename MemberType, int UniqueID = 0 > +class base_from_member +{ +protected: + MemberType member; + + base_from_member() + : member() + {} + + BOOST_PP_REPEAT_FROM_TO( 1, BOOST_PP_INC(BOOST_BASE_FROM_MEMBER_MAX_ARITY), + BOOST_PRIVATE_CTR_DEF, _ ) + +}; // boost::base_from_member + +} // namespace boost + + +// Undo any private macros +#undef BOOST_PRIVATE_CTR_DEF + + +#endif // BOOST_UTILITY_BASE_FROM_MEMBER_HPP