1#ifndef BOOST_SERIALIZATION_FACTORY_HPP
2#define BOOST_SERIALIZATION_FACTORY_HPP
3
4/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
5// MS compatible compilers support #pragma once
6#if defined(_MSC_VER)
7# pragma once
8#endif
9
10// factory.hpp: create an instance from an extended_type_info instance.
11
12// (C) Copyright 2002 Robert Ramey - http://www.rrsd.com .
13// Use, modification and distribution is subject to the Boost Software
14// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
15// http://www.boost.org/LICENSE_1_0.txt)
16
17// See http://www.boost.org for updates, documentation, and revision history.
18
19#include <cstdarg> // valist
20#include <cstddef> // NULL
21
22#include <boost/preprocessor/control/if.hpp>
23#include <boost/preprocessor/comparison/greater.hpp>
24
25namespace std{
26 #if defined(__LIBCOMO__)
27 using ::va_list;
28 #endif
29} // namespace std
30
31namespace boost {
32namespace serialization {
33
34// default implementation does nothing.
35template<class T, int N>
36T * factory(std::va_list){
37 BOOST_ASSERT(false);
38 // throw exception here?
39 return NULL;
40}
41
42} // namespace serialization
43} // namespace boost
44
45#define BOOST_SERIALIZATION_FACTORY(N, T, A0, A1, A2, A3) \
46namespace boost { \
47namespace serialization { \
48 template<> \
49 T * factory<T, N>(std::va_list ap){ \
50 BOOST_PP_IF(BOOST_PP_GREATER(N,0) \
51 ,A0 a0 = va_arg(ap, A0); \
52 ,BOOST_PP_IF(BOOST_PP_GREATER(N,1) \
53 ,A1 a1 = va_arg(ap, A1); \
54 ,BOOST_PP_IF(BOOST_PP_GREATER(N,2) \
55 ,A2 a2 = va_arg(ap, A2); \
56 ,BOOST_PP_IF(BOOST_PP_GREATER(N,3) \
57 ,A3 a3 = va_arg(ap, A3); \
58 ,BOOST_PP_EMPTY() \
59 )))) \
60 return new T( \
61 BOOST_PP_IF(BOOST_PP_GREATER(N,0) \
62 ,a0 \
63 ,BOOST_PP_IF(BOOST_PP_GREATER(N,1) \
64 ,a1 \
65 ,BOOST_PP_IF(BOOST_PP_GREATER(N,2) \
66 ,a2 \
67 ,BOOST_PP_IF(BOOST_PP_GREATER(N,3) \
68 ,a3 \
69 ,BOOST_PP_EMPTY() \
70 )))) \
71 ); \
72 } \
73} \
74} \
75/**/
76
77#define BOOST_SERIALIZATION_FACTORY_4(T, A0, A1, A2, A3) \
78 BOOST_SERIALIZATION_FACTORY(4, T, A0, A1, A2, A3)
79
80#define BOOST_SERIALIZATION_FACTORY_3(T, A0, A1, A2) \
81 BOOST_SERIALIZATION_FACTORY(3, T, A0, A1, A2, 0)
82
83#define BOOST_SERIALIZATION_FACTORY_2(T, A0, A1) \
84 BOOST_SERIALIZATION_FACTORY(2, T, A0, A1, 0, 0)
85
86#define BOOST_SERIALIZATION_FACTORY_1(T, A0) \
87 BOOST_SERIALIZATION_FACTORY(1, T, A0, 0, 0, 0)
88
89#define BOOST_SERIALIZATION_FACTORY_0(T) \
90namespace boost { \
91namespace serialization { \
92 template<> \
93 T * factory<T, 0>(std::va_list){ \
94 return new T(); \
95 } \
96} \
97} \
98/**/
99
100#endif // BOOST_SERIALIZATION_FACTORY_HPP
101

source code of boost/boost/serialization/factory.hpp