functional (e76eebc6) functional (dee715a7)
1/**************************************************************
2 *
3 * Licensed to the Apache Software Foundation (ASF) under one
4 * or more contributor license agreements. See the NOTICE file
5 * distributed with this work for additional information
6 * regarding copyright ownership. The ASF licenses this file
7 * to you under the Apache License, Version 2.0 (the
8 * "License"); you may not use this file except in compliance

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17 * specific language governing permissions and limitations
18 * under the License.
19 *
20 *************************************************************/
21
22#ifndef SYSTEM_STL_FUNCTIONAL
23#define SYSTEM_STL_FUNCTIONAL
24
1/**************************************************************
2 *
3 * Licensed to the Apache Software Foundation (ASF) under one
4 * or more contributor license agreements. See the NOTICE file
5 * distributed with this work for additional information
6 * regarding copyright ownership. The ASF licenses this file
7 * to you under the Apache License, Version 2.0 (the
8 * "License"); you may not use this file except in compliance

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17 * specific language governing permissions and limitations
18 * under the License.
19 *
20 *************************************************************/
21
22#ifndef SYSTEM_STL_FUNCTIONAL
23#define SYSTEM_STL_FUNCTIONAL
24
25#ifdef GCC
26# ifdef __MINGW32__
27# define _SYSTEM_STL_MAKE_HEADER(path,header) <path/header>
28# include _SYSTEM_STL_MAKE_HEADER(GXX_INCLUDE_PATH,functional)
29# else
30# include <ext/../functional>
31# endif
32# include <ext/functional>
25#if defined(HAVE_STL_INCLUDE_PATH)
26 // TODO: use computed include file name
27 #include_next <functional>
28#elif defined(_MSC_VER)
29 #include <../../VC/include/functional>
30 namespace std { using tr1::hash; }
31#if 1 // TODO: enable only when std::_Swap_adl is not available
32 // note: VS2008SP1 has known problems after a security update (KB971092,KB974479,KB974223)
33 namespace std{ template<class _T> void _Swap_adl(_T& l, _T& r) {swap(l,r);} }
34#endif
35#else // fall back to boost/tr1
36 #include <boost/tr1/tr1/functional>
37 #include <boost/functional/hash.hpp>
38#endif
33
39
40
41#ifndef NO_STLPORT4_EMULATION
42
34namespace std
35{
43namespace std
44{
36 using __gnu_cxx::project1st;
37 using __gnu_cxx::project2nd;
38 using __gnu_cxx::select1st;
39 using __gnu_cxx::select2nd;
40 using __gnu_cxx::compose1;
41 using __gnu_cxx::compose2;
42 using __gnu_cxx::unary_compose;
43 using __gnu_cxx::binary_compose;
44# ifndef __GXX_EXPERIMENTAL_CXX0X__
45 using __gnu_cxx::identity;
46 using __gnu_cxx::mem_fun1;
47 using __gnu_cxx::mem_fun1_ref;
48# endif
49}
45// emulate SGI extensions to the STL using http://www.sgi.com/tech/stl/stl_function.h as reference
46template< typename T> struct identity : unary_function<T,T> { T operator()(const T& t) const { return t;} };
47template< typename T, typename U> struct project2nd : public binary_function<T,U,U> { U operator()(const T&, const U& u) const { return u;}};
48template<typename P> struct select1st : public unary_function<P, typename P::first_type> { const typename P::first_type& operator()(const P& p) const { return p.first; }};
49template<typename P> struct select2nd : public unary_function<P, typename P::second_type> { const typename P::second_type& operator()(const P& p) const { return p.second; }};
50
50
51#else
52# error UNSUPPORTED COMPILER
53#endif
51#if (defined(_MSC_VER) && (_MSC_VER >= 1600)) || defined(__GXX_EXPERIMENTAL_CXX0X__)
52template<typename T> inline T&& forward( typename identity<T>::type&& t) { return t; }
53#endif // C++11 move semantics
54
54
55template<typename Op1, typename Op2> class unary_compose : public unary_function<typename Op2::argument_type, typename Op1::result_type>
56{
57protected:
58 Op1 aOp1;
59 Op2 aOp2;
60public:
61 unary_compose( const Op1& rOp1, const Op2& rOp2) : aOp1(rOp1), aOp2(rOp2) {}
62 typename Op1::result_type operator()( const typename Op2::argument_type& x) const { return aOp1(aOp2(x)); }
63};
64
65template<typename Op1, typename Op2> inline unary_compose<Op1,Op2> compose1( const Op1& rOp1, const Op2& rOp2) { return unary_compose<Op1,Op2>(rOp1, rOp2); }
66
67} // namespace std
68
69#endif // NO_STLPORT4_EMULATION
70
55#endif
71#endif
56/* vi:set tabstop=4 shiftwidth=4 expandtab: */
72