Line data Source code
1 :
2 : /* Copyright (c) 2006-2013, Stefan Eilemann <eile@equalizergraphics.com>
3 : * 2010-2014, Daniel Nachbaur <danielnachbaur@gmail.com>
4 : *
5 : * This library is free software; you can redistribute it and/or modify it under
6 : * the terms of the GNU Lesser General Public License version 2.1 as published
7 : * by the Free Software Foundation.
8 : *
9 : * This library is distributed in the hope that it will be useful, but WITHOUT
10 : * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
11 : * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
12 : * details.
13 : *
14 : * You should have received a copy of the GNU Lesser General Public License
15 : * along with this library; if not, write to the Free Software Foundation, Inc.,
16 : * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
17 : */
18 :
19 : /**
20 : * @file lunchbox/stdExt.h
21 : *
22 : * Include extensions to the STL and define a uniform interface to them.
23 : * @deprecated For containers and most functionality use boost classes.
24 : */
25 :
26 : #ifndef LUNCHBOX_STDEXT_H
27 : #define LUNCHBOX_STDEXT_H
28 :
29 : #include <lunchbox/algorithm.h> // usort
30 : #include <lunchbox/compiler.h>
31 : #include <lunchbox/uint128_t.h>
32 :
33 : #include <algorithm>
34 : #include <string>
35 : #include <vector>
36 : #ifdef LB_GCC_4_4_OR_LATER
37 : # include <parallel/algorithm>
38 : #endif
39 :
40 : //----- Common extensions of the STL
41 : #ifdef CXX_UNORDERED_MAP_SUPPORTED
42 : # define LB_STDEXT_STD
43 : # define LB_STDEXT_STD11
44 : #elif defined __GNUC__
45 : # if defined LB_GCC_4_3_OR_LATER && !defined __INTEL_COMPILER
46 : # define LB_STDEXT_TR1
47 : # elif defined __clang__
48 : # define LB_STDEXT_TR1
49 : # else
50 : # define LB_STDEXT_EXT
51 : # endif
52 : #elif defined _MSC_VER
53 : # define LB_STDEXT_MSVC
54 : #elif defined __xlC__
55 : # define LB_STDEXT_TR1
56 : # define LB_STDEXT_TR1_BOOST
57 : #else
58 : # define LB_STDEXT_STD
59 : #endif
60 :
61 : #ifdef LB_STDEXT_TR1
62 : # ifdef LB_STDEXT_TR1_BOOST
63 : # include <boost/tr1/functional.hpp>
64 : # include <boost/tr1/unordered_map.hpp>
65 : # include <boost/tr1/unordered_set.hpp>
66 : # else
67 : # include <tr1/unordered_map>
68 : # include <tr1/unordered_set>
69 : # endif
70 : /* Alias stde namespace to uniformly access stl extensions. */
71 : namespace stde = std::tr1;
72 : # define LB_STDEXT_NAMESPACE_OPEN namespace std { namespace tr1 {
73 : # define LB_STDEXT_NAMESPACE_CLOSE }}
74 : #endif
75 :
76 : #ifdef LB_STDEXT_EXT
77 : # include <ext/hash_map>
78 : # include <ext/hash_set>
79 : /* Alias stde namespace to uniformly access stl extensions. */
80 : namespace stde = __gnu_cxx;
81 : # define LB_STDEXT_NAMESPACE_OPEN namespace __gnu_cxx {
82 : # define LB_STDEXT_NAMESPACE_CLOSE }
83 : #endif
84 :
85 : #ifdef LB_STDEXT_MSVC
86 : # include <hash_map>
87 : # include <hash_set>
88 : /* Alias stde namespace to uniformly access stl extensions. */
89 : namespace stde = stdext;
90 : # define LB_STDEXT_NAMESPACE_OPEN namespace stdext {
91 : # define LB_STDEXT_NAMESPACE_CLOSE }
92 : #endif
93 :
94 : #ifdef LB_STDEXT_STD
95 : # ifdef LB_STDEXT_STD11
96 : # include <unordered_map>
97 : # include <unordered_set>
98 : # else
99 : # include <hash_map>
100 : # include <hash_set>
101 : # endif
102 : /* Alias stde namespace to uniformly access stl extensions. */
103 : namespace stde = std;
104 : # define LB_STDEXT_NAMESPACE_OPEN namespace std {
105 : # define LB_STDEXT_NAMESPACE_CLOSE }
106 : #endif
107 :
108 :
109 : LB_STDEXT_NAMESPACE_OPEN
110 :
111 : //----- Our extensions of the STL
112 : #if defined LB_STDEXT_TR1 || defined LB_STDEXT_STD11
113 : # ifndef LB_HAVE_HASH_MAP
114 : # ifdef CXX_TEMPLATE_ALIAS_SUPPORTED
115 : template< class K, class T, class H = hash< K >, class P = std::equal_to< K >,
116 : class A = std::allocator< std::pair< const K, T > > >
117 : using hash_map = unordered_map< K, T, H, P, A >;
118 : # else
119 : template< class K, class T, class H = hash< K >, class P = std::equal_to< K >,
120 : class A = std::allocator< std::pair< const K, T > > >
121 : class hash_map : public unordered_map< K, T, H, P, A > {};
122 : # endif
123 : # endif // LB_HAVE_HASH_MAP
124 : # ifndef LB_HAVE_HASH_SET
125 : # ifdef CXX_TEMPLATE_ALIAS_SUPPORTED
126 : template< class T, class H = hash< T >,
127 : class P = std::equal_to< T >, class A = std::allocator< T > >
128 : using hash_set = unordered_set< T, H, P, A >;
129 : # else
130 : template< class T, class H = hash< T >,
131 : class P = std::equal_to< T >, class A = std::allocator< T > >
132 : class hash_set : public unordered_set< T, H, P, A > {};
133 : # endif
134 : # endif // LB_HAVE_HASH_SET
135 : #endif
136 :
137 : #ifdef LB_STDEXT_EXT
138 : # ifndef LB_HAVE_STRING_HASH
139 : /** std::string hash function. @version 1.0 */
140 : template<> struct hash< std::string >
141 : {
142 : size_t operator()( const std::string& str ) const
143 : { return hash< const char* >()( str.c_str() ); }
144 : };
145 : # endif // LB_HAVE_STRING_HASH
146 :
147 : # if !defined __INTEL_COMPILER
148 : # ifndef LB_HAVE_LONG_HASH
149 : /** uint64_t hash function. @version 1.0 */
150 : template<> struct hash< uint64_t >
151 : {
152 : size_t operator()( const uint64_t& val ) const
153 : {
154 : // OPT: tr1 does the same, however it seems suboptimal on 32 bits if the
155 : // lower 32 bits never change, e.g., for ObjectVersion
156 : return static_cast< size_t >( val );
157 : }
158 : };
159 : # endif
160 : # endif // !__INTEL_COMPILER
161 :
162 : # ifndef LB_HAVE_VOID_PTR_HASH
163 : /** void* hash functions. @version 1.0 */
164 : template<> struct hash< void* >
165 : {
166 : template< typename P > size_t operator()( const P& key ) const
167 : { return reinterpret_cast<size_t>(key); }
168 : };
169 :
170 : template<> struct hash< const void* >
171 : {
172 : template< typename P > size_t operator()( const P& key ) const
173 : { return reinterpret_cast<size_t>(key); }
174 : };
175 : # endif // LB_HAVE_VOID_PTR_HASH
176 : #endif // LB_STDEXT_EXT
177 :
178 : #ifdef LB_STDEXT_MSVC
179 : # ifndef LB_HAVE_STRING_HASH
180 :
181 : /** std::string hash function. @version 1.0 */
182 : template<> inline
183 : size_t hash_compare< std::string >::operator() ( const std::string& key ) const
184 : { return hash_value( key.c_str( )); }
185 :
186 : # endif
187 :
188 : template<> inline size_t hash_compare< lunchbox::uint128_t >::operator()
189 : ( const lunchbox::uint128_t& key ) const
190 : {
191 : return static_cast< size_t >( key.high() ^ key.low() );
192 : }
193 :
194 : template<> inline size_t hash_value( const lunchbox::uint128_t& key )
195 : { return static_cast< size_t >( key.high() ^ key.low() ); }
196 : #else // MSVC
197 :
198 : /** uint128_t hash function. @version 1.0 */
199 : template<> struct hash< lunchbox::uint128_t >
200 : {
201 379151 : size_t operator()( const lunchbox::uint128_t& key ) const
202 379151 : { return key.high() ^ key.low(); }
203 : };
204 : #endif //! MSVC
205 :
206 : /** @deprecated use lunchbox::usort() */
207 : template< typename C > void usort( C& c ) { lunchbox::usort( c ); }
208 :
209 : #ifndef LB_STDEXT_STD
210 : /** @deprecated Use lunchbox::sort() */
211 : # ifdef LB_GCC_4_4_OR_LATER
212 : using __gnu_parallel::sort;
213 : # else
214 : using std::sort;
215 : # endif
216 : #endif
217 :
218 : LB_STDEXT_NAMESPACE_CLOSE
219 :
220 :
221 : #endif // LUNCHBOX_STDEXT_H
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