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Jeff Thompsonef2d5a42013-08-22 19:09:24 -07001// Boost.Range library
2//
3// Copyright Thorsten Ottosen 2003-2004. Use, modification and
4// distribution is subject to the Boost Software License, Version
5// 1.0. (See accompanying file LICENSE_1_0.txt or copy at
6// http://www.boost.org/LICENSE_1_0.txt)
7//
8// For more information, see http://www.boost.org/libs/range/
9//
10
Jeff Thompson3d613fd2013-10-15 15:39:04 -070011#ifndef NDNBOOST_RANGE_BEGIN_HPP
12#define NDNBOOST_RANGE_BEGIN_HPP
Jeff Thompsonef2d5a42013-08-22 19:09:24 -070013
14#if defined(_MSC_VER) && (_MSC_VER >= 1200)
15# pragma once
16#endif
17
18#include <ndnboost/range/config.hpp>
19
Jeff Thompson3d613fd2013-10-15 15:39:04 -070020#ifdef NDNBOOST_NO_FUNCTION_TEMPLATE_ORDERING
Jeff Thompsonef2d5a42013-08-22 19:09:24 -070021#include <ndnboost/range/detail/begin.hpp>
22#else
23
24#include <ndnboost/range/iterator.hpp>
25
26namespace ndnboost
27{
28
Jeff Thompson3d613fd2013-10-15 15:39:04 -070029#if !NDNBOOST_WORKAROUND(__BORLANDC__, NDNBOOST_TESTED_AT(0x564)) && \
30 !NDNBOOST_WORKAROUND(__GNUC__, < 3) \
Jeff Thompsonef2d5a42013-08-22 19:09:24 -070031 /**/
32namespace range_detail
33{
34#endif
35
36 //////////////////////////////////////////////////////////////////////
37 // primary template
38 //////////////////////////////////////////////////////////////////////
39
40 template< typename C >
Jeff Thompson3d613fd2013-10-15 15:39:04 -070041 inline NDNBOOST_DEDUCED_TYPENAME range_iterator<C>::type
Jeff Thompsonef2d5a42013-08-22 19:09:24 -070042 range_begin( C& c )
43 {
44 //
45 // If you get a compile-error here, it is most likely because
46 // you have not implemented range_begin() properly in
47 // the namespace of C
48 //
49 return c.begin();
50 }
51
52 //////////////////////////////////////////////////////////////////////
53 // pair
54 //////////////////////////////////////////////////////////////////////
55
56 template< typename Iterator >
57 inline Iterator range_begin( const std::pair<Iterator,Iterator>& p )
58 {
59 return p.first;
60 }
61
62 template< typename Iterator >
63 inline Iterator range_begin( std::pair<Iterator,Iterator>& p )
64 {
65 return p.first;
66 }
67
68 //////////////////////////////////////////////////////////////////////
69 // array
70 //////////////////////////////////////////////////////////////////////
71
72 //
73 // May this be discarded? Or is it needed for bad compilers?
74 //
75 template< typename T, std::size_t sz >
76 inline const T* range_begin( const T (&a)[sz] )
77 {
78 return a;
79 }
80
81 template< typename T, std::size_t sz >
82 inline T* range_begin( T (&a)[sz] )
83 {
84 return a;
85 }
86
87
Jeff Thompson3d613fd2013-10-15 15:39:04 -070088#if !NDNBOOST_WORKAROUND(__BORLANDC__, NDNBOOST_TESTED_AT(0x564)) && \
89 !NDNBOOST_WORKAROUND(__GNUC__, < 3) \
Jeff Thompsonef2d5a42013-08-22 19:09:24 -070090 /**/
91} // namespace 'range_detail'
92#endif
93
94// Use a ADL namespace barrier to avoid ambiguity with other unqualified
95// calls. This is particularly important with C++0x encouraging
96// unqualified calls to begin/end.
97namespace range_adl_barrier
98{
99
100template< class T >
Jeff Thompson3d613fd2013-10-15 15:39:04 -0700101inline NDNBOOST_DEDUCED_TYPENAME range_iterator<T>::type begin( T& r )
Jeff Thompsonef2d5a42013-08-22 19:09:24 -0700102{
Jeff Thompson3d613fd2013-10-15 15:39:04 -0700103#if !NDNBOOST_WORKAROUND(__BORLANDC__, NDNBOOST_TESTED_AT(0x564)) && \
104 !NDNBOOST_WORKAROUND(__GNUC__, < 3) \
Jeff Thompsonef2d5a42013-08-22 19:09:24 -0700105 /**/
106 using namespace range_detail;
107#endif
108 return range_begin( r );
109}
110
111template< class T >
Jeff Thompson3d613fd2013-10-15 15:39:04 -0700112inline NDNBOOST_DEDUCED_TYPENAME range_iterator<const T>::type begin( const T& r )
Jeff Thompsonef2d5a42013-08-22 19:09:24 -0700113{
Jeff Thompson3d613fd2013-10-15 15:39:04 -0700114#if !NDNBOOST_WORKAROUND(__BORLANDC__, NDNBOOST_TESTED_AT(0x564)) && \
115 !NDNBOOST_WORKAROUND(__GNUC__, < 3) \
Jeff Thompsonef2d5a42013-08-22 19:09:24 -0700116 /**/
117 using namespace range_detail;
118#endif
119 return range_begin( r );
120}
121
122 } // namespace range_adl_barrier
123} // namespace ndnboost
124
Jeff Thompson3d613fd2013-10-15 15:39:04 -0700125#endif // NDNBOOST_NO_FUNCTION_TEMPLATE_ORDERING
Jeff Thompsonef2d5a42013-08-22 19:09:24 -0700126
127namespace ndnboost
128{
129 namespace range_adl_barrier
130 {
131 template< class T >
Jeff Thompson3d613fd2013-10-15 15:39:04 -0700132 inline NDNBOOST_DEDUCED_TYPENAME range_iterator<const T>::type
Jeff Thompsonef2d5a42013-08-22 19:09:24 -0700133 const_begin( const T& r )
134 {
135 return ndnboost::range_adl_barrier::begin( r );
136 }
137 } // namespace range_adl_barrier
138
139 using namespace range_adl_barrier;
140} // namespace ndnboost
141
142#endif
143