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+/*
+ *
+ * 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
+
+__STL_BEGIN_NAMESPACE
+
+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);
+ }
+};
+
+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);
+ }
+};
+
+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;
+};
+
+#ifdef __STL_CLASS_PARTIAL_SPECIALIZATION
+
+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;
+};
+
+#endif /* __STL_CLASS_PARTIAL_SPECIALIZATION */
+
+// 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); }
+
+__STL_END_NAMESPACE
+
+#endif /* __SGI_STL_INTERNAL_FUNCTION_H */
+
+// Local Variables:
+// mode:C++
+// End:
generated by cgit v1.1 at 2025-04-04 18:13:30 +0000