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Whole document tree                   stl_function.h Go to the documentation of this file. // Functor implementations -*- C++ -*- // Copyright (C) 2001 Free Software Foundation, Inc. // // This file is part of the GNU ISO C++ Library. This library is free // software; you can redistribute it and/or modify it under the // terms of the GNU General Public License as published by the // Free Software Foundation; either version 2, or (at your option) // any later version. // This library is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // You should have received a copy of the GNU General Public License along // with this library; see the file COPYING. If not, write to the Free // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, // USA. // As a special exception, you may use this file as part of a free software // library without restriction. Specifically, if other files instantiate // templates or use macros or inline functions from this file, or you compile // this file and link it with other files to produce an executable, this // file does not by itself cause the resulting executable to be covered by // the GNU General Public License. This exception does not however // invalidate any other reasons why the executable file might be covered by // the GNU General Public License. /* * * Copyright (c) 1994 * Hewlett-Packard Company * * Permission to use, copy, modify, distribute and sell this software * and its documentation for any purpose is hereby granted without fee, * provided that the above copyright notice appear in all copies and * that both that copyright notice and this permission notice appear * in supporting documentation. Hewlett-Packard Company makes no * representations about the suitability of this software for any * purpose. It is provided "as is" without express or implied warranty. * * * Copyright (c) 1996-1998 * Silicon Graphics Computer Systems, Inc. * * Permission to use, copy, modify, distribute and sell this software * and its documentation for any purpose is hereby granted without fee, * provided that the above copyright notice appear in all copies and * that both that copyright notice and this permission notice appear * in supporting documentation. Silicon Graphics makes no * representations about the suitability of this software for any * purpose. It is provided "as is" without express or implied warranty. */ /* NOTE: This is an internal header file, included by other STL headers. * You should not attempt to use it directly. */ #ifndef __SGI_STL_INTERNAL_FUNCTION_H #define __SGI_STL_INTERNAL_FUNCTION_H namespace std { template <class _Arg, class _Result> struct unary_function { typedef _Arg argument_type; typedef _Result result_type; }; template <class _Arg1, class _Arg2, class _Result> struct binary_function { typedef _Arg1 first_argument_type; typedef _Arg2 second_argument_type; typedef _Result result_type; }; template <class _Tp> struct plus : public binary_function<_Tp,_Tp,_Tp> { _Tp operator()(const _Tp& __x, const _Tp& __y) const { return __x + __y; } }; template <class _Tp> struct minus : public binary_function<_Tp,_Tp,_Tp> { _Tp operator()(const _Tp& __x, const _Tp& __y) const { return __x - __y; } }; template <class _Tp> struct multiplies : public binary_function<_Tp,_Tp,_Tp> { _Tp operator()(const _Tp& __x, const _Tp& __y) const { return __x * __y; } }; template <class _Tp> struct divides : public binary_function<_Tp,_Tp,_Tp> { _Tp operator()(const _Tp& __x, const _Tp& __y) const { return __x / __y; } }; // identity_element (not part of the C++ standard). template <class _Tp> inline _Tp identity_element(plus<_Tp>) { return _Tp(0); } template <class _Tp> inline _Tp identity_element(multiplies<_Tp>) { return _Tp(1); } template <class _Tp> struct modulus : public binary_function<_Tp,_Tp,_Tp> { _Tp operator()(const _Tp& __x, const _Tp& __y) const { return __x % __y; } }; template <class _Tp> struct negate : public unary_function<_Tp,_Tp> { _Tp operator()(const _Tp& __x) const { return -__x; } }; template <class _Tp> struct equal_to : public binary_function<_Tp,_Tp,bool> { bool operator()(const _Tp& __x, const _Tp& __y) const { return __x == __y; } }; template <class _Tp> struct not_equal_to : public binary_function<_Tp,_Tp,bool> { bool operator()(const _Tp& __x, const _Tp& __y) const { return __x != __y; } }; template <class _Tp> struct greater : public binary_function<_Tp,_Tp,bool> { bool operator()(const _Tp& __x, const _Tp& __y) const { return __x > __y; } }; template <class _Tp> struct less : public binary_function<_Tp,_Tp,bool> { bool operator()(const _Tp& __x, const _Tp& __y) const { return __x < __y; } }; template <class _Tp> struct greater_equal : public binary_function<_Tp,_Tp,bool> { bool operator()(const _Tp& __x, const _Tp& __y) const { return __x >= __y; } }; template <class _Tp> struct less_equal : public binary_function<_Tp,_Tp,bool> { bool operator()(const _Tp& __x, const _Tp& __y) const { return __x <= __y; } }; template <class _Tp> struct logical_and : public binary_function<_Tp,_Tp,bool> { bool operator()(const _Tp& __x, const _Tp& __y) const { return __x && __y; } }; template <class _Tp> struct logical_or : public binary_function<_Tp,_Tp,bool> { bool operator()(const _Tp& __x, const _Tp& __y) const { return __x || __y; } }; template <class _Tp> struct logical_not : public unary_function<_Tp,bool> { bool operator()(const _Tp& __x) const { return !__x; } }; template <class _Predicate> class unary_negate : public unary_function<typename _Predicate::argument_type, bool> { protected: _Predicate _M_pred; public: explicit unary_negate(const _Predicate& __x) : _M_pred(__x) {} bool operator()(const typename _Predicate::argument_type& __x) const { return !_M_pred(__x); } }; template <class _Predicate> inline unary_negate<_Predicate> not1(const _Predicate& __pred) { return unary_negate<_Predicate>(__pred); } template <class _Predicate> class binary_negate : public binary_function<typename _Predicate::first_argument_type, typename _Predicate::second_argument_type, bool> { protected: _Predicate _M_pred; public: explicit binary_negate(const _Predicate& __x) : _M_pred(__x) {} bool operator()(const typename _Predicate::first_argument_type& __x, const typename _Predicate::second_argument_type& __y) const { return !_M_pred(__x, __y); } }; template <class _Predicate> inline binary_negate<_Predicate> not2(const _Predicate& __pred) { return binary_negate<_Predicate>(__pred); } template <class _Operation> class binder1st : public unary_function<typename _Operation::second_argument_type, typename _Operation::result_type> { protected: _Operation op; typename _Operation::first_argument_type value; public: binder1st(const _Operation& __x, const typename _Operation::first_argument_type& __y) : op(__x), value(__y) {} typename _Operation::result_type operator()(const typename _Operation::second_argument_type& __x) const { return op(value, __x); } #ifdef _GLIBCPP_RESOLVE_LIB_DEFECTS // 109. Missing binders for non-const sequence elements typename _Operation::result_type operator()(typename _Operation::second_argument_type& __x) const { return op(value, __x); } #endif }; template <class _Operation, class _Tp> inline binder1st<_Operation> bind1st(const _Operation& __fn, const _Tp& __x) { typedef typename _Operation::first_argument_type _Arg1_type; return binder1st<_Operation>(__fn, _Arg1_type(__x)); } template <class _Operation> class binder2nd : public unary_function<typename _Operation::first_argument_type, typename _Operation::result_type> { protected: _Operation op; typename _Operation::second_argument_type value; public: binder2nd(const _Operation& __x, const typename _Operation::second_argument_type& __y) : op(__x), value(__y) {} typename _Operation::result_type operator()(const typename _Operation::first_argument_type& __x) const { return op(__x, value); } #ifdef _GLIBCPP_RESOLVE_LIB_DEFECTS // 109. Missing binders for non-const sequence elements typename _Operation::result_type operator()(typename _Operation::first_argument_type& __x) const { return op(__x, value); } #endif }; template <class _Operation, class _Tp> inline binder2nd<_Operation> bind2nd(const _Operation& __fn, const _Tp& __x) { typedef typename _Operation::second_argument_type _Arg2_type; return binder2nd<_Operation>(__fn, _Arg2_type(__x)); } // unary_compose and binary_compose (extensions, not part of the standard). template <class _Operation1, class _Operation2> class unary_compose : public unary_function<typename _Operation2::argument_type, typename _Operation1::result_type> { protected: _Operation1 _M_fn1; _Operation2 _M_fn2; public: unary_compose(const _Operation1& __x, const _Operation2& __y) : _M_fn1(__x), _M_fn2(__y) {} typename _Operation1::result_type operator()(const typename _Operation2::argument_type& __x) const { return _M_fn1(_M_fn2(__x)); } }; template <class _Operation1, class _Operation2> inline unary_compose<_Operation1,_Operation2> compose1(const _Operation1& __fn1, const _Operation2& __fn2) { return unary_compose<_Operation1,_Operation2>(__fn1, __fn2); } template <class _Operation1, class _Operation2, class _Operation3> class binary_compose : public unary_function<typename _Operation2::argument_type, typename _Operation1::result_type> { protected: _Operation1 _M_fn1; _Operation2 _M_fn2; _Operation3 _M_fn3; public: binary_compose(const _Operation1& __x, const _Operation2& __y, const _Operation3& __z) : _M_fn1(__x), _M_fn2(__y), _M_fn3(__z) { } typename _Operation1::result_type operator()(const typename _Operation2::argument_type& __x) const { return _M_fn1(_M_fn2(__x), _M_fn3(__x)); } }; template <class _Operation1, class _Operation2, class _Operation3> inline binary_compose<_Operation1, _Operation2, _Operation3> compose2(const _Operation1& __fn1, const _Operation2& __fn2, const _Operation3& __fn3) { return binary_compose<_Operation1,_Operation2,_Operation3> (__fn1, __fn2, __fn3); } template <class _Arg, class _Result> class pointer_to_unary_function : public unary_function<_Arg, _Result> { protected: _Result (*_M_ptr)(_Arg); public: pointer_to_unary_function() {} explicit pointer_to_unary_function(_Result (*__x)(_Arg)) : _M_ptr(__x) {} _Result operator()(_Arg __x) const { return _M_ptr(__x); } }; template <class _Arg, class _Result> inline pointer_to_unary_function<_Arg, _Result> ptr_fun(_Result (*__x)(_Arg)) { return pointer_to_unary_function<_Arg, _Result>(__x); } template <class _Arg1, class _Arg2, class _Result> class pointer_to_binary_function : public binary_function<_Arg1,_Arg2,_Result> { protected: _Result (*_M_ptr)(_Arg1, _Arg2); public: pointer_to_binary_function() {} explicit pointer_to_binary_function(_Result (*__x)(_Arg1, _Arg2)) : _M_ptr(__x) {} _Result operator()(_Arg1 __x, _Arg2 __y) const { return _M_ptr(__x, __y); } }; template <class _Arg1, class _Arg2, class _Result> inline pointer_to_binary_function<_Arg1,_Arg2,_Result> ptr_fun(_Result (*__x)(_Arg1, _Arg2)) { return pointer_to_binary_function<_Arg1,_Arg2,_Result>(__x); } // identity is an extensions: it is not part of the standard. template <class _Tp> struct _Identity : public unary_function<_Tp,_Tp> { _Tp& operator()(_Tp& __x) const { return __x; } const _Tp& operator()(const _Tp& __x) const { return __x; } }; template <class _Tp> struct identity : public _Identity<_Tp> {}; // select1st and select2nd are extensions: they are not part of the standard. template <class _Pair> struct _Select1st : public unary_function<_Pair, typename _Pair::first_type> { typename _Pair::first_type& operator()(_Pair& __x) const { return __x.first; } const typename _Pair::first_type& operator()(const _Pair& __x) const { return __x.first; } }; template <class _Pair> struct _Select2nd : public unary_function<_Pair, typename _Pair::second_type> { typename _Pair::second_type& operator()(_Pair& __x) const { return __x.second; } const typename _Pair::second_type& operator()(const _Pair& __x) const { return __x.second; } }; template <class _Pair> struct select1st : public _Select1st<_Pair> {}; template <class _Pair> struct select2nd : public _Select2nd<_Pair> {}; // project1st and project2nd are extensions: they are not part of the standard template <class _Arg1, class _Arg2> struct _Project1st : public binary_function<_Arg1, _Arg2, _Arg1> { _Arg1 operator()(const _Arg1& __x, const _Arg2&) const { return __x; } }; template <class _Arg1, class _Arg2> struct _Project2nd : public binary_function<_Arg1, _Arg2, _Arg2> { _Arg2 operator()(const _Arg1&, const _Arg2& __y) const { return __y; } }; template <class _Arg1, class _Arg2> struct project1st : public _Project1st<_Arg1, _Arg2> {}; template <class _Arg1, class _Arg2> struct project2nd : public _Project2nd<_Arg1, _Arg2> {}; // constant_void_fun, constant_unary_fun, and constant_binary_fun are // extensions: they are not part of the standard. (The same, of course, // is true of the helper functions constant0, constant1, and constant2.) template <class _Result> struct _Constant_void_fun { typedef _Result result_type; result_type _M_val; _Constant_void_fun(const result_type& __v) : _M_val(__v) {} const result_type& operator()() const { return _M_val; } }; template <class _Result, class _Argument> struct _Constant_unary_fun { typedef _Argument argument_type; typedef _Result result_type; result_type _M_val; _Constant_unary_fun(const result_type& __v) : _M_val(__v) {} const result_type& operator()(const _Argument&) const { return _M_val; } }; template <class _Result, class _Arg1, class _Arg2> struct _Constant_binary_fun { typedef _Arg1 first_argument_type; typedef _Arg2 second_argument_type; typedef _Result result_type; _Result _M_val; _Constant_binary_fun(const _Result& __v) : _M_val(__v) {} const result_type& operator()(const _Arg1&, const _Arg2&) const { return _M_val; } }; template <class _Result> struct constant_void_fun : public _Constant_void_fun<_Result> { constant_void_fun(const _Result& __v) : _Constant_void_fun<_Result>(__v) {} }; template <class _Result, class _Argument = _Result> struct constant_unary_fun : public _Constant_unary_fun<_Result, _Argument> { constant_unary_fun(const _Result& __v) : _Constant_unary_fun<_Result, _Argument>(__v) {} }; template <class _Result, class _Arg1 = _Result, class _Arg2 = _Arg1> struct constant_binary_fun : public _Constant_binary_fun<_Result, _Arg1, _Arg2> { constant_binary_fun(const _Result& __v) : _Constant_binary_fun<_Result, _Arg1, _Arg2>(__v) {} }; template <class _Result> inline constant_void_fun<_Result> constant0(const _Result& __val) { return constant_void_fun<_Result>(__val); } template <class _Result> inline constant_unary_fun<_Result,_Result> constant1(const _Result& __val) { return constant_unary_fun<_Result,_Result>(__val); } template <class _Result> inline constant_binary_fun<_Result,_Result,_Result> constant2(const _Result& __val) { return constant_binary_fun<_Result,_Result,_Result>(__val); } // subtractive_rng is an extension: it is not part of the standard. // Note: this code assumes that int is 32 bits. class subtractive_rng : public unary_function<unsigned int, unsigned int> { private: unsigned int _M_table[55]; size_t _M_index1; size_t _M_index2; public: unsigned int operator()(unsigned int __limit) { _M_index1 = (_M_index1 + 1) % 55; _M_index2 = (_M_index2 + 1) % 55; _M_table[_M_index1] = _M_table[_M_index1] - _M_table[_M_index2]; return _M_table[_M_index1] % __limit; } void _M_initialize(unsigned int __seed) { unsigned int __k = 1; _M_table[54] = __seed; size_t __i; for (__i = 0; __i < 54; __i++) { size_t __ii = (21 * (__i + 1) % 55) - 1; _M_table[__ii] = __k; __k = __seed - __k; __seed = _M_table[__ii]; } for (int __loop = 0; __loop < 4; __loop++) { for (__i = 0; __i < 55; __i++) _M_table[__i] = _M_table[__i] - _M_table[(1 + __i + 30) % 55]; } _M_index1 = 0; _M_index2 = 31; } subtractive_rng(unsigned int __seed) { _M_initialize(__seed); } subtractive_rng() { _M_initialize(161803398u); } }; // Adaptor function objects: pointers to member functions. // There are a total of 16 = 2^4 function objects in this family. // (1) Member functions taking no arguments vs member functions taking // one argument. // (2) Call through pointer vs call through reference. // (3) Member function with void return type vs member function with // non-void return type. // (4) Const vs non-const member function. // Note that choice (3) is nothing more than a workaround: according // to the draft, compilers should handle void and non-void the same way. // This feature is not yet widely implemented, though. You can only use // member functions returning void if your compiler supports partial // specialization. // All of this complexity is in the function objects themselves. You can // ignore it by using the helper function mem_fun and mem_fun_ref, // which create whichever type of adaptor is appropriate. // (mem_fun1 and mem_fun1_ref are no longer part of the C++ standard, // but they are provided for backward compatibility.) template <class _Ret, class _Tp> class mem_fun_t : public unary_function<_Tp*,_Ret> { public: explicit mem_fun_t(_Ret (_Tp::*__pf)()) : _M_f(__pf) {} _Ret operator()(_Tp* __p) const { return (__p->*_M_f)(); } private: _Ret (_Tp::*_M_f)(); }; template <class _Ret, class _Tp> class const_mem_fun_t : public unary_function<const _Tp*,_Ret> { public: explicit const_mem_fun_t(_Ret (_Tp::*__pf)() const) : _M_f(__pf) {} _Ret operator()(const _Tp* __p) const { return (__p->*_M_f)(); } private: _Ret (_Tp::*_M_f)() const; }; template <class _Ret, class _Tp> class mem_fun_ref_t : public unary_function<_Tp,_Ret> { public: explicit mem_fun_ref_t(_Ret (_Tp::*__pf)()) : _M_f(__pf) {} _Ret operator()(_Tp& __r) const { return (__r.*_M_f)(); } private: _Ret (_Tp::*_M_f)(); }; template <class _Ret, class _Tp> class const_mem_fun_ref_t : public unary_function<_Tp,_Ret> { public: explicit const_mem_fun_ref_t(_Ret (_Tp::*__pf)() const) : _M_f(__pf) {} _Ret operator()(const _Tp& __r) const { return (__r.*_M_f)(); } private: _Ret (_Tp::*_M_f)() const; }; template <class _Ret, class _Tp, class _Arg> class mem_fun1_t : public binary_function<_Tp*,_Arg,_Ret> { public: explicit mem_fun1_t(_Ret (_Tp::*__pf)(_Arg)) : _M_f(__pf) {} _Ret operator()(_Tp* __p, _Arg __x) const { return (__p->*_M_f)(__x); } private: _Ret (_Tp::*_M_f)(_Arg); }; template <class _Ret, class _Tp, class _Arg> class const_mem_fun1_t : public binary_function<const _Tp*,_Arg,_Ret> { public: explicit const_mem_fun1_t(_Ret (_Tp::*__pf)(_Arg) const) : _M_f(__pf) {} _Ret operator()(const _Tp* __p, _Arg __x) const { return (__p->*_M_f)(__x); } private: _Ret (_Tp::*_M_f)(_Arg) const; }; template <class _Ret, class _Tp, class _Arg> class mem_fun1_ref_t : public binary_function<_Tp,_Arg,_Ret> { public: explicit mem_fun1_ref_t(_Ret (_Tp::*__pf)(_Arg)) : _M_f(__pf) {} _Ret operator()(_Tp& __r, _Arg __x) const { return (__r.*_M_f)(__x); } private: _Ret (_Tp::*_M_f)(_Arg); }; template <class _Ret, class _Tp, class _Arg> class const_mem_fun1_ref_t : public binary_function<_Tp,_Arg,_Ret> { public: explicit const_mem_fun1_ref_t(_Ret (_Tp::*__pf)(_Arg) const) : _M_f(__pf) {} _Ret operator()(const _Tp& __r, _Arg __x) const { return (__r.*_M_f)(__x); } private: _Ret (_Tp::*_M_f)(_Arg) const; }; template <class _Tp> class mem_fun_t<void, _Tp> : public unary_function<_Tp*,void> { public: explicit mem_fun_t(void (_Tp::*__pf)()) : _M_f(__pf) {} void operator()(_Tp* __p) const { (__p->*_M_f)(); } private: void (_Tp::*_M_f)(); }; template <class _Tp> class const_mem_fun_t<void, _Tp> : public unary_function<const _Tp*,void> { public: explicit const_mem_fun_t(void (_Tp::*__pf)() const) : _M_f(__pf) {} void operator()(const _Tp* __p) const { (__p->*_M_f)(); } private: void (_Tp::*_M_f)() const; }; template <class _Tp> class mem_fun_ref_t<void, _Tp> : public unary_function<_Tp,void> { public: explicit mem_fun_ref_t(void (_Tp::*__pf)()) : _M_f(__pf) {} void operator()(_Tp& __r) const { (__r.*_M_f)(); } private: void (_Tp::*_M_f)(); }; template <class _Tp> class const_mem_fun_ref_t<void, _Tp> : public unary_function<_Tp,void> { public: explicit const_mem_fun_ref_t(void (_Tp::*__pf)() const) : _M_f(__pf) {} void operator()(const _Tp& __r) const { (__r.*_M_f)(); } private: void (_Tp::*_M_f)() const; }; template <class _Tp, class _Arg> class mem_fun1_t<void, _Tp, _Arg> : public binary_function<_Tp*,_Arg,void> { public: explicit mem_fun1_t(void (_Tp::*__pf)(_Arg)) : _M_f(__pf) {} void operator()(_Tp* __p, _Arg __x) const { (__p->*_M_f)(__x); } private: void (_Tp::*_M_f)(_Arg); }; template <class _Tp, class _Arg> class const_mem_fun1_t<void, _Tp, _Arg> : public binary_function<const _Tp*,_Arg,void> { public: explicit const_mem_fun1_t(void (_Tp::*__pf)(_Arg) const) : _M_f(__pf) {} void operator()(const _Tp* __p, _Arg __x) const { (__p->*_M_f)(__x); } private: void (_Tp::*_M_f)(_Arg) const; }; template <class _Tp, class _Arg> class mem_fun1_ref_t<void, _Tp, _Arg> : public binary_function<_Tp,_Arg,void> { public: explicit mem_fun1_ref_t(void (_Tp::*__pf)(_Arg)) : _M_f(__pf) {} void operator()(_Tp& __r, _Arg __x) const { (__r.*_M_f)(__x); } private: void (_Tp::*_M_f)(_Arg); }; template <class _Tp, class _Arg> class const_mem_fun1_ref_t<void, _Tp, _Arg> : public binary_function<_Tp,_Arg,void> { public: explicit const_mem_fun1_ref_t(void (_Tp::*__pf)(_Arg) const) : _M_f(__pf) {} void operator()(const _Tp& __r, _Arg __x) const { (__r.*_M_f)(__x); } private: void (_Tp::*_M_f)(_Arg) const; }; // Mem_fun adaptor helper functions. There are only two: // mem_fun and mem_fun_ref. (mem_fun1 and mem_fun1_ref // are provided for backward compatibility, but they are no longer // part of the C++ standard.) template <class _Ret, class _Tp> inline mem_fun_t<_Ret,_Tp> mem_fun(_Ret (_Tp::*__f)()) { return mem_fun_t<_Ret,_Tp>(__f); } template <class _Ret, class _Tp> inline const_mem_fun_t<_Ret,_Tp> mem_fun(_Ret (_Tp::*__f)() const) { return const_mem_fun_t<_Ret,_Tp>(__f); } template <class _Ret, class _Tp> inline mem_fun_ref_t<_Ret,_Tp> mem_fun_ref(_Ret (_Tp::*__f)()) { return mem_fun_ref_t<_Ret,_Tp>(__f); } template <class _Ret, class _Tp> inline const_mem_fun_ref_t<_Ret,_Tp> mem_fun_ref(_Ret (_Tp::*__f)() const) { return const_mem_fun_ref_t<_Ret,_Tp>(__f); } template <class _Ret, class _Tp, class _Arg> inline mem_fun1_t<_Ret,_Tp,_Arg> mem_fun(_Ret (_Tp::*__f)(_Arg)) { return mem_fun1_t<_Ret,_Tp,_Arg>(__f); } template <class _Ret, class _Tp, class _Arg> inline const_mem_fun1_t<_Ret,_Tp,_Arg> mem_fun(_Ret (_Tp::*__f)(_Arg) const) { return const_mem_fun1_t<_Ret,_Tp,_Arg>(__f); } template <class _Ret, class _Tp, class _Arg> inline mem_fun1_ref_t<_Ret,_Tp,_Arg> mem_fun_ref(_Ret (_Tp::*__f)(_Arg)) { return mem_fun1_ref_t<_Ret,_Tp,_Arg>(__f); } template <class _Ret, class _Tp, class _Arg> inline const_mem_fun1_ref_t<_Ret,_Tp,_Arg> mem_fun_ref(_Ret (_Tp::*__f)(_Arg) const) { return const_mem_fun1_ref_t<_Ret,_Tp,_Arg>(__f); } template <class _Ret, class _Tp, class _Arg> inline mem_fun1_t<_Ret,_Tp,_Arg> mem_fun1(_Ret (_Tp::*__f)(_Arg)) { return mem_fun1_t<_Ret,_Tp,_Arg>(__f); } template <class _Ret, class _Tp, class _Arg> inline const_mem_fun1_t<_Ret,_Tp,_Arg> mem_fun1(_Ret (_Tp::*__f)(_Arg) const) { return const_mem_fun1_t<_Ret,_Tp,_Arg>(__f); } template <class _Ret, class _Tp, class _Arg> inline mem_fun1_ref_t<_Ret,_Tp,_Arg> mem_fun1_ref(_Ret (_Tp::*__f)(_Arg)) { return mem_fun1_ref_t<_Ret,_Tp,_Arg>(__f); } template <class _Ret, class _Tp, class _Arg> inline const_mem_fun1_ref_t<_Ret,_Tp,_Arg> mem_fun1_ref(_Ret (_Tp::*__f)(_Arg) const) { return const_mem_fun1_ref_t<_Ret,_Tp,_Arg>(__f); } } // namespace std #endif /* __SGI_STL_INTERNAL_FUNCTION_H */ // Local Variables: // mode:C++ // End: