diff -r 666f914201fb -r 2fe1408b6811 epoc32/include/stdapis/boost/multi_index/mem_fun.hpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/epoc32/include/stdapis/boost/multi_index/mem_fun.hpp Tue Mar 16 16:12:26 2010 +0000 @@ -0,0 +1,222 @@ +/* Copyright 2003-2006 Joaquín M López Muñoz. + * Distributed under the Boost Software License, Version 1.0. + * (See accompanying file LICENSE_1_0.txt or copy at + * http://www.boost.org/LICENSE_1_0.txt) + * + * See http://www.boost.org/libs/multi_index for library home page. + */ + +#ifndef BOOST_MULTI_INDEX_MEM_FUN_HPP +#define BOOST_MULTI_INDEX_MEM_FUN_HPP + +#if defined(_MSC_VER)&&(_MSC_VER>=1200) +#pragma once +#endif + +#include /* keep it first to prevent nasty warns in MSVC */ +#include +#include +#include + +#if !defined(BOOST_NO_SFINAE) +#include +#endif + +namespace boost{ + +template class reference_wrapper; /* fwd decl. */ + +namespace multi_index{ + +/* mem_fun implements a read-only key extractor based on a given non-const + * member function of a class. + * const_mem_fun does the same for const member functions. + * Additionally, mem_fun and const_mem_fun are overloaded to support + * referece_wrappers of T and "chained pointers" to T's. By chained pointer + * to T we mean a type P such that, given a p of Type P + * *...n...*x is convertible to T&, for some n>=1. + * Examples of chained pointers are raw and smart pointers, iterators and + * arbitrary combinations of these (vg. T** or auto_ptr.) + */ + +/* NB. Some overloads of operator() have an extra dummy parameter int=0. + * This disambiguator serves several purposes: + * - Without it, MSVC++ 6.0 incorrectly regards some overloads as + * specializations of a previous member function template. + * - MSVC++ 6.0/7.0 seem to incorrectly treat some different memfuns + * as if they have the same signature. + * - If remove_const is broken due to lack of PTS, int=0 avoids the + * declaration of memfuns with identical signature. + */ + +template +struct const_mem_fun +{ + typedef typename remove_reference::type result_type; + + template + +#if !defined(BOOST_NO_SFINAE) + typename disable_if< + is_convertible,Type>::type +#else + Type +#endif + + operator()(const ChainedPtr& x)const + { + return operator()(*x); + } + + Type operator()(const Class& x)const + { + return (x.*PtrToMemberFunction)(); + } + + Type operator()(const reference_wrapper& x)const + { + return operator()(x.get()); + } + + Type operator()(const reference_wrapper& x,int=0)const + { + return operator()(x.get()); + } +}; + +template +struct mem_fun +{ + typedef typename remove_reference::type result_type; + + template + +#if !defined(BOOST_NO_SFINAE) + typename disable_if< + is_convertible,Type>::type +#else + Type +#endif + + operator()(const ChainedPtr& x)const + { + return operator()(*x); + } + + Type operator()(Class& x)const + { + return (x.*PtrToMemberFunction)(); + } + + Type operator()(const reference_wrapper& x)const + { + return operator()(x.get()); + } +}; + +/* MSVC++ 6.0 has problems with const member functions as non-type template + * parameters, somehow it takes them as non-const. mem_fun_explicit workarounds + * this defficiency by accepting an extra type parameter that specifies the + * signature of he member function. The workaround was found at: + * Daniel, C.:"Re: weird typedef problem in VC", + * news:microsoft.public.vc.language, 21st nov 2002, + * http://groups.google.com/groups? + * hl=en&lr=&ie=UTF-8&selm=ukwvg3O0BHA.1512%40tkmsftngp05 + */ + +template< + class Class,typename Type, + typename PtrToMemberFunctionType,PtrToMemberFunctionType PtrToMemberFunction> +struct const_mem_fun_explicit +{ + typedef typename remove_reference::type result_type; + + template + +#if !defined(BOOST_NO_SFINAE) + typename disable_if< + is_convertible,Type>::type +#else + Type +#endif + + operator()(const ChainedPtr& x)const + { + return operator()(*x); + } + + Type operator()(const Class& x)const + { + return (x.*PtrToMemberFunction)(); + } + + Type operator()(const reference_wrapper& x)const + { + return operator()(x.get()); + } + + Type operator()(const reference_wrapper& x,int=0)const + { + return operator()(x.get()); + } +}; + +template< + class Class,typename Type, + typename PtrToMemberFunctionType,PtrToMemberFunctionType PtrToMemberFunction> +struct mem_fun_explicit +{ + typedef typename remove_reference::type result_type; + + template + +#if !defined(BOOST_NO_SFINAE) + typename disable_if< + is_convertible,Type>::type +#else + Type +#endif + + operator()(const ChainedPtr& x)const + { + return operator()(*x); + } + + Type operator()(Class& x)const + { + return (x.*PtrToMemberFunction)(); + } + + Type operator()(const reference_wrapper& x)const + { + return operator()(x.get()); + } +}; + +/* BOOST_MULTI_INDEX_CONST_MEM_FUN and BOOST_MULTI_INDEX_MEM_FUN resolve to + * mem_fun_explicit for MSVC++ 6.0 and to [const_]mem_fun otherwise. + */ + +#if defined(BOOST_MSVC)&&(BOOST_MSVC<1300) + +#define BOOST_MULTI_INDEX_CONST_MEM_FUN(Class,Type,MemberFunName) \ +::boost::multi_index::const_mem_fun_explicit<\ + Class,Type,Type (Class::*)()const,&Class::MemberFunName > +#define BOOST_MULTI_INDEX_MEM_FUN(Class,Type,MemberFunName) \ +::boost::multi_index::mem_fun_explicit<\ + Class,Type,Type (Class::*)(),&Class::MemberFunName > + +#else + +#define BOOST_MULTI_INDEX_CONST_MEM_FUN(Class,Type,MemberFunName) \ +::boost::multi_index::const_mem_fun< Class,Type,&Class::MemberFunName > +#define BOOST_MULTI_INDEX_MEM_FUN(Class,Type,MemberFunName) \ +::boost::multi_index::mem_fun< Class,Type,&Class::MemberFunName > + +#endif + +} /* namespace multi_index */ + +} /* namespace boost */ + +#endif