diff options
Diffstat (limited to 'libstdc++/stl/stl_function.h')
| -rw-r--r-- | libstdc++/stl/stl_function.h | 754 |
1 files changed, 413 insertions, 341 deletions
diff --git a/libstdc++/stl/stl_function.h b/libstdc++/stl/stl_function.h index c0d785d..cd07c1c 100644 --- a/libstdc++/stl/stl_function.h +++ b/libstdc++/stl/stl_function.h @@ -12,7 +12,7 @@ * purpose. It is provided "as is" without express or implied warranty. * * - * Copyright (c) 1996 + * Copyright (c) 1996-1998 * Silicon Graphics Computer Systems, Inc. * * Permission to use, copy, modify, distribute and sell this software @@ -33,372 +33,430 @@ __STL_BEGIN_NAMESPACE -template <class Arg, class Result> +template <class _Arg, class _Result> struct unary_function { - typedef Arg argument_type; - typedef Result result_type; + typedef _Arg argument_type; + typedef _Result result_type; }; -template <class Arg1, class Arg2, class Result> +template <class _Arg1, class _Arg2, class _Result> struct binary_function { - typedef Arg1 first_argument_type; - typedef Arg2 second_argument_type; - typedef Result result_type; + typedef _Arg1 first_argument_type; + typedef _Arg2 second_argument_type; + typedef _Result result_type; }; -template <class T> -struct plus : public binary_function<T, T, T> { - T operator()(const T& x, const T& y) const { return x + y; } +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 T> -struct minus : public binary_function<T, T, T> { - T operator()(const T& x, const T& 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 T> -struct multiplies : public binary_function<T, T, T> { - T operator()(const T& x, const T& 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 T> -struct divides : public binary_function<T, T, T> { - T operator()(const T& x, const T& 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; } }; -template <class T> inline T identity_element(plus<T>) { return T(0); } +// identity_element (not part of the C++ standard). -template <class T> inline T identity_element(multiplies<T>) { return T(1); } +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 T> -struct modulus : public binary_function<T, T, T> { - T operator()(const T& x, const T& y) const { return x % y; } +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 T> -struct negate : public unary_function<T, T> { - T operator()(const T& x) const { return -x; } +template <class _Tp> +struct negate : public unary_function<_Tp,_Tp> +{ + _Tp operator()(const _Tp& __x) const { return -__x; } }; -template <class T> -struct equal_to : public binary_function<T, T, bool> { - bool operator()(const T& x, const T& y) const { return x == y; } +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 T> -struct not_equal_to : public binary_function<T, T, bool> { - bool operator()(const T& x, const T& 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 T> -struct greater : public binary_function<T, T, bool> { - bool operator()(const T& x, const T& 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 T> -struct less : public binary_function<T, T, bool> { - bool operator()(const T& x, const T& 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 T> -struct greater_equal : public binary_function<T, T, bool> { - bool operator()(const T& x, const T& 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 T> -struct less_equal : public binary_function<T, T, bool> { - bool operator()(const T& x, const T& 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 T> -struct logical_and : public binary_function<T, T, bool> { - bool operator()(const T& x, const T& 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 T> -struct logical_or : public binary_function<T, T, bool> { - bool operator()(const T& x, const T& 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 T> -struct logical_not : public unary_function<T, bool> { - bool operator()(const T& x) const { return !x; } +template <class _Tp> +struct logical_not : public unary_function<_Tp,bool> +{ + bool operator()(const _Tp& __x) const { return !__x; } }; -template <class Predicate> +template <class _Predicate> class unary_negate - : public unary_function<typename Predicate::argument_type, bool> { + : public unary_function<typename _Predicate::argument_type, bool> { protected: - Predicate pred; + _Predicate _M_pred; public: - explicit unary_negate(const Predicate& x) : pred(x) {} - bool operator()(const typename Predicate::argument_type& x) const { - return !pred(x); + 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> +inline unary_negate<_Predicate> +not1(const _Predicate& __pred) +{ + return unary_negate<_Predicate>(__pred); } -template <class Predicate> +template <class _Predicate> class binary_negate - : public binary_function<typename Predicate::first_argument_type, - typename Predicate::second_argument_type, + : public binary_function<typename _Predicate::first_argument_type, + typename _Predicate::second_argument_type, bool> { protected: - Predicate pred; + _Predicate _M_pred; public: - explicit binary_negate(const Predicate& x) : pred(x) {} - bool operator()(const typename Predicate::first_argument_type& x, - const typename Predicate::second_argument_type& y) const { - return !pred(x, y); + 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 _Predicate> +inline binary_negate<_Predicate> +not2(const _Predicate& __pred) +{ + return binary_negate<_Predicate>(__pred); } -template <class Operation> +template <class _Operation> class binder1st - : public unary_function<typename Operation::second_argument_type, - typename Operation::result_type> { + : public unary_function<typename _Operation::second_argument_type, + typename _Operation::result_type> { protected: - Operation op; - typename Operation::first_argument_type value; + _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); + 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 T> -inline binder1st<Operation> bind1st(const Operation& op, const T& x) { - typedef typename Operation::first_argument_type arg1_type; - return binder1st<Operation>(op, arg1_type(x)); +template <class _Operation, class _Tp> +inline binder1st<_Operation> +bind1st(const _Operation& __opr, const _Tp& __x) +{ + typedef typename _Operation::first_argument_type _Arg1_type; + return binder1st<_Operation>(__opr, _Arg1_type(__x)); } -template <class Operation> +template <class _Operation> class binder2nd - : public unary_function<typename Operation::first_argument_type, - typename Operation::result_type> { + : public unary_function<typename _Operation::first_argument_type, + typename _Operation::result_type> { protected: - Operation op; - typename Operation::second_argument_type value; + _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); + 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 T> -inline binder2nd<Operation> bind2nd(const Operation& op, const T& x) { - typedef typename Operation::second_argument_type arg2_type; - return binder2nd<Operation>(op, arg2_type(x)); +template <class _Operation, class _Tp> +inline binder2nd<_Operation> +bind2nd(const _Operation& __opr, const _Tp& __x) +{ + typedef typename _Operation::second_argument_type _Arg2_type; + return binder2nd<_Operation>(__opr, _Arg2_type(__x)); } -template <class Operation1, class Operation2> -class unary_compose : public unary_function<typename Operation2::argument_type, - typename Operation1::result_type> { +// 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 op1; - Operation2 op2; + _Operation1 __op1; + _Operation2 __op2; public: - unary_compose(const Operation1& x, const Operation2& y) : op1(x), op2(y) {} - typename Operation1::result_type - operator()(const typename Operation2::argument_type& x) const { - return op1(op2(x)); + unary_compose(const _Operation1& __x, const _Operation2& __y) + : __op1(__x), __op2(__y) {} + typename _Operation1::result_type + operator()(const typename _Operation2::argument_type& __x) const { + return __op1(__op2(__x)); } }; -template <class Operation1, class Operation2> -inline unary_compose<Operation1, Operation2> compose1(const Operation1& op1, - const Operation2& op2) { - return unary_compose<Operation1, Operation2>(op1, op2); +template <class _Operation1, class _Operation2> +inline unary_compose<_Operation1,_Operation2> +compose1(const _Operation1& __op1, const _Operation2& __op2) +{ + return unary_compose<_Operation1,_Operation2>(__op1, __op2); } -template <class Operation1, class Operation2, class Operation3> +template <class _Operation1, class _Operation2, class _Operation3> class binary_compose - : public unary_function<typename Operation2::argument_type, - typename Operation1::result_type> { + : public unary_function<typename _Operation2::argument_type, + typename _Operation1::result_type> { protected: - Operation1 op1; - Operation2 op2; - Operation3 op3; + _Operation1 _M_op1; + _Operation2 _M_op2; + _Operation3 _M_op3; public: - binary_compose(const Operation1& x, const Operation2& y, - const Operation3& z) : op1(x), op2(y), op3(z) { } - typename Operation1::result_type - operator()(const typename Operation2::argument_type& x) const { - return op1(op2(x), op3(x)); + binary_compose(const _Operation1& __x, const _Operation2& __y, + const _Operation3& __z) + : _M_op1(__x), _M_op2(__y), _M_op3(__z) { } + typename _Operation1::result_type + operator()(const typename _Operation2::argument_type& __x) const { + return _M_op1(_M_op2(__x), _M_op3(__x)); } }; -template <class Operation1, class Operation2, class Operation3> -inline binary_compose<Operation1, Operation2, Operation3> -compose2(const Operation1& op1, const Operation2& op2, const Operation3& op3) { - return binary_compose<Operation1, Operation2, Operation3>(op1, op2, op3); +template <class _Operation1, class _Operation2, class _Operation3> +inline binary_compose<_Operation1, _Operation2, _Operation3> +compose2(const _Operation1& __op1, const _Operation2& __op2, + const _Operation3& __op3) +{ + return binary_compose<_Operation1,_Operation2,_Operation3> + (__op1, __op2, __op3); } -template <class Arg, class Result> -class pointer_to_unary_function : public unary_function<Arg, Result> { +template <class _Arg, class _Result> +class pointer_to_unary_function : public unary_function<_Arg, _Result> { protected: - Result (*ptr)(Arg); + _Result (*_M_ptr)(_Arg); public: pointer_to_unary_function() {} - explicit pointer_to_unary_function(Result (*x)(Arg)) : ptr(x) {} - Result operator()(Arg x) const { return ptr(x); } + 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 _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> { +template <class _Arg1, class _Arg2, class _Result> +class pointer_to_binary_function : + public binary_function<_Arg1,_Arg2,_Result> { protected: - Result (*ptr)(Arg1, Arg2); + _Result (*_M_ptr)(_Arg1, _Arg2); public: pointer_to_binary_function() {} - explicit pointer_to_binary_function(Result (*x)(Arg1, Arg2)) : ptr(x) {} - Result operator()(Arg1 x, Arg2 y) const { return ptr(x, y); } + 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); +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); } -template <class T> -struct identity : public unary_function<T, T> { - const T& operator()(const T& x) const { return x; } +// identity is an extensions: it is not part of the standard. +template <class _Tp> +struct _Identity : public unary_function<_Tp,_Tp> { + const _Tp& operator()(const _Tp& __x) const { return __x; } }; -template <class Pair> -struct select1st : public unary_function<Pair, typename Pair::first_type> { - const typename Pair::first_type& operator()(const Pair& x) const - { - return x.first; +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> { + 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> { - const typename Pair::second_type& operator()(const Pair& x) const - { - return x.second; +template <class _Pair> +struct _Select2nd : public unary_function<_Pair, typename _Pair::second_type> +{ + const typename _Pair::second_type& operator()(const _Pair& __x) const { + return __x.second; } }; -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 _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 _Project2nd : public binary_function<_Arg1, _Arg2, _Arg2> { + _Arg2 operator()(const _Arg1&, const _Arg2& __y) const { return __y; } }; -template <class Result> +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 val; - constant_void_fun(const result_type& v) : val(v) {} - const result_type& operator()() const { return val; } + typedef _Result result_type; + result_type __val; + constant_void_fun(const result_type& __v) : __val(__v) {} + const result_type& operator()() const { return __val; } }; #ifndef __STL_LIMITED_DEFAULT_TEMPLATES -template <class Result, class Argument = Result> +template <class _Result, class _Argument = _Result> #else -template <class Result, class Argument> +template <class _Result, class _Argument> #endif -struct constant_unary_fun : public unary_function<Argument, Result> { - Result val; - constant_unary_fun(const Result& v) : val(v) {} - const Result& operator()(const Argument&) const { return val; } +struct constant_unary_fun : public unary_function<_Argument, _Result> { + _Result _M_val; + constant_unary_fun(const _Result& __v) : _M_val(__v) {} + const _Result& operator()(const _Argument&) const { return _M_val; } }; #ifndef __STL_LIMITED_DEFAULT_TEMPLATES -template <class Result, class Arg1 = Result, class Arg2 = Arg1> +template <class _Result, class _Arg1 = _Result, class _Arg2 = _Arg1> #else -template <class Result, class Arg1, class Arg2> +template <class _Result, class _Arg1, class _Arg2> #endif -struct constant_binary_fun : public binary_function<Arg1, Arg2, Result> { - Result val; - constant_binary_fun(const Result& v) : val(v) {} - const Result& operator()(const Arg1&, const Arg2&) const { - return val; +struct constant_binary_fun : public binary_function<_Arg1, _Arg2, _Result> { + _Result _M_val; + constant_binary_fun(const _Result& __v) : _M_val(__v) {} + const _Result& operator()(const _Arg1&, const _Arg2&) const { + return _M_val; } }; -template <class Result> -inline constant_void_fun<Result> constant0(const Result& val) +template <class _Result> +inline constant_void_fun<_Result> constant0(const _Result& __val) { - return constant_void_fun<Result>(val); + return constant_void_fun<_Result>(__val); } -template <class Result> -inline constant_unary_fun<Result,Result> constant1(const Result& val) +template <class _Result> +inline constant_unary_fun<_Result,_Result> constant1(const _Result& __val) { - return constant_unary_fun<Result,Result>(val); + return constant_unary_fun<_Result,_Result>(__val); } -template <class Result> -inline constant_binary_fun<Result,Result,Result> constant2(const Result& val) +template <class _Result> +inline constant_binary_fun<_Result,_Result,_Result> +constant2(const _Result& __val) { - return constant_binary_fun<Result,Result,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 table[55]; - size_t index1; - size_t index2; + unsigned int _M_table[55]; + size_t _M_index1; + size_t _M_index2; public: - unsigned int operator()(unsigned int limit) { - index1 = (index1 + 1) % 55; - index2 = (index2 + 1) % 55; - table[index1] = table[index1] - table[index2]; - return table[index1] % limit; + 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 initialize(unsigned int seed) + void _M_initialize(unsigned int __seed) { - unsigned int k = 1; - table[54] = seed; - size_t i; - for (i = 0; i < 54; i++) { - size_t ii = (21 * (i + 1) % 55) - 1; - table[ii] = k; - k = seed - k; - seed = table[ii]; + 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++) - table[i] = table[i] - table[(1 + i + 30) % 55]; + 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]; } - index1 = 0; - index2 = 31; + _M_index1 = 0; + _M_index2 = 31; } - subtractive_rng(unsigned int seed) { initialize(seed); } - subtractive_rng() { initialize(161803398u); } + subtractive_rng(unsigned int __seed) { _M_initialize(__seed); } + subtractive_rng() { _M_initialize(161803398u); } }; @@ -412,212 +470,226 @@ public: // non-void return type. // (4) Const vs non-const member function. -// Note that choice (4) is not present in the 8/97 draft C++ standard, -// which only allows these adaptors to be used with non-const functions. -// This is likely to be recified before the standard becomes final. -// Note also that choice (3) is nothing more than a workaround: according +// 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, mem_fun_ref, -// mem_fun1, and mem_fun1_ref, which create whichever type of adaptor -// is appropriate. +// 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 S, class T> -class mem_fun_t : public unary_function<T*, S> { +template <class _Ret, class _Tp> +class mem_fun_t : public unary_function<_Tp*,_Ret> { public: - explicit mem_fun_t(S (T::*pf)()) : f(pf) {} - S operator()(T* p) const { return (p->*f)(); } + explicit mem_fun_t(_Ret (_Tp::*__pf)()) : _M_f(__pf) {} + _Ret operator()(_Tp* __p) const { return (__p->*_M_f)(); } private: - S (T::*f)(); + _Ret (_Tp::*_M_f)(); }; -template <class S, class T> -class const_mem_fun_t : public unary_function<const T*, S> { +template <class _Ret, class _Tp> +class const_mem_fun_t : public unary_function<const _Tp*,_Ret> { public: - explicit const_mem_fun_t(S (T::*pf)() const) : f(pf) {} - S operator()(const T* p) const { return (p->*f)(); } + explicit const_mem_fun_t(_Ret (_Tp::*__pf)() const) : _M_f(__pf) {} + _Ret operator()(const _Tp* __p) const { return (__p->*_M_f)(); } private: - S (T::*f)() const; + _Ret (_Tp::*_M_f)() const; }; -template <class S, class T> -class mem_fun_ref_t : public unary_function<T, S> { +template <class _Ret, class _Tp> +class mem_fun_ref_t : public unary_function<_Tp,_Ret> { public: - explicit mem_fun_ref_t(S (T::*pf)()) : f(pf) {} - S operator()(T& r) const { return (r.*f)(); } + explicit mem_fun_ref_t(_Ret (_Tp::*__pf)()) : _M_f(__pf) {} + _Ret operator()(_Tp& __r) const { return (__r.*_M_f)(); } private: - S (T::*f)(); + _Ret (_Tp::*_M_f)(); }; -template <class S, class T> -class const_mem_fun_ref_t : public unary_function<T, S> { +template <class _Ret, class _Tp> +class const_mem_fun_ref_t : public unary_function<_Tp,_Ret> { public: - explicit const_mem_fun_ref_t(S (T::*pf)() const) : f(pf) {} - S operator()(const T& r) const { return (r.*f)(); } + explicit const_mem_fun_ref_t(_Ret (_Tp::*__pf)() const) : _M_f(__pf) {} + _Ret operator()(const _Tp& __r) const { return (__r.*_M_f)(); } private: - S (T::*f)() const; + _Ret (_Tp::*_M_f)() const; }; -template <class S, class T, class A> -class mem_fun1_t : public binary_function<T*, A, S> { +template <class _Ret, class _Tp, class _Arg> +class mem_fun1_t : public binary_function<_Tp*,_Arg,_Ret> { public: - explicit mem_fun1_t(S (T::*pf)(A)) : f(pf) {} - S operator()(T* p, A x) const { return (p->*f)(x); } + explicit mem_fun1_t(_Ret (_Tp::*__pf)(_Arg)) : _M_f(__pf) {} + _Ret operator()(_Tp* __p, _Arg __x) const { return (__p->*_M_f)(__x); } private: - S (T::*f)(A); + _Ret (_Tp::*_M_f)(_Arg); }; -template <class S, class T, class A> -class const_mem_fun1_t : public binary_function<const T*, A, S> { +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(S (T::*pf)(A) const) : f(pf) {} - S operator()(const T* p, A x) const { return (p->*f)(x); } + 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: - S (T::*f)(A) const; + _Ret (_Tp::*_M_f)(_Arg) const; }; -template <class S, class T, class A> -class mem_fun1_ref_t : public binary_function<T, A, S> { +template <class _Ret, class _Tp, class _Arg> +class mem_fun1_ref_t : public binary_function<_Tp,_Arg,_Ret> { public: - explicit mem_fun1_ref_t(S (T::*pf)(A)) : f(pf) {} - S operator()(T& r, A x) const { return (r.*f)(x); } + 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: - S (T::*f)(A); + _Ret (_Tp::*_M_f)(_Arg); }; -template <class S, class T, class A> -class const_mem_fun1_ref_t : public binary_function<T, A, S> { +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(S (T::*pf)(A) const) : f(pf) {} - S operator()(const T& r, A x) const { return (r.*f)(x); } + 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: - S (T::*f)(A) const; + _Ret (_Tp::*_M_f)(_Arg) const; }; #ifdef __STL_CLASS_PARTIAL_SPECIALIZATION -template <class T> -class mem_fun_t<void, T> : public unary_function<T*, void> { +template <class _Tp> +class mem_fun_t<void, _Tp> : public unary_function<_Tp*,void> { public: - explicit mem_fun_t(void (T::*pf)()) : f(pf) {} - void operator()(T* p) const { (p->*f)(); } + explicit mem_fun_t(void (_Tp::*__pf)()) : _M_f(__pf) {} + void operator()(_Tp* __p) const { (__p->*_M_f)(); } private: - void (T::*f)(); + void (_Tp::*_M_f)(); }; -template <class T> -class const_mem_fun_t<void, T> : public unary_function<const T*, void> { +template <class _Tp> +class const_mem_fun_t<void, _Tp> : public unary_function<const _Tp*,void> { public: - explicit const_mem_fun_t(void (T::*pf)() const) : f(pf) {} - void operator()(const T* p) const { (p->*f)(); } + explicit const_mem_fun_t(void (_Tp::*__pf)() const) : _M_f(__pf) {} + void operator()(const _Tp* __p) const { (__p->*_M_f)(); } private: - void (T::*f)() const; + void (_Tp::*_M_f)() const; }; -template <class T> -class mem_fun_ref_t<void, T> : public unary_function<T, void> { +template <class _Tp> +class mem_fun_ref_t<void, _Tp> : public unary_function<_Tp,void> { public: - explicit mem_fun_ref_t(void (T::*pf)()) : f(pf) {} - void operator()(T& r) const { (r.*f)(); } + explicit mem_fun_ref_t(void (_Tp::*__pf)()) : _M_f(__pf) {} + void operator()(_Tp& __r) const { (__r.*_M_f)(); } private: - void (T::*f)(); + void (_Tp::*_M_f)(); }; -template <class T> -class const_mem_fun_ref_t<void, T> : public unary_function<T, void> { +template <class _Tp> +class const_mem_fun_ref_t<void, _Tp> : public unary_function<_Tp,void> { public: - explicit const_mem_fun_ref_t(void (T::*pf)() const) : f(pf) {} - void operator()(const T& r) const { (r.*f)(); } + explicit const_mem_fun_ref_t(void (_Tp::*__pf)() const) : _M_f(__pf) {} + void operator()(const _Tp& __r) const { (__r.*_M_f)(); } private: - void (T::*f)() const; + void (_Tp::*_M_f)() const; }; -template <class T, class A> -class mem_fun1_t<void, T, A> : public binary_function<T*, A, void> { +template <class _Tp, class _Arg> +class mem_fun1_t<void, _Tp, _Arg> : public binary_function<_Tp*,_Arg,void> { public: - explicit mem_fun1_t(void (T::*pf)(A)) : f(pf) {} - void operator()(T* p, A x) const { (p->*f)(x); } + explicit mem_fun1_t(void (_Tp::*__pf)(_Arg)) : _M_f(__pf) {} + void operator()(_Tp* __p, _Arg __x) const { (__p->*_M_f)(__x); } private: - void (T::*f)(A); + void (_Tp::*_M_f)(_Arg); }; -template <class T, class A> -class const_mem_fun1_t<void, T, A> : public binary_function<const T*, A, void> { +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 (T::*pf)(A) const) : f(pf) {} - void operator()(const T* p, A x) const { (p->*f)(x); } + 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 (T::*f)(A) const; + void (_Tp::*_M_f)(_Arg) const; }; -template <class T, class A> -class mem_fun1_ref_t<void, T, A> : public binary_function<T, A, void> { +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 (T::*pf)(A)) : f(pf) {} - void operator()(T& r, A x) const { (r.*f)(x); } + 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 (T::*f)(A); + void (_Tp::*_M_f)(_Arg); }; -template <class T, class A> -class const_mem_fun1_ref_t<void, T, A> : public binary_function<T, A, void> { +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 (T::*pf)(A) const) : f(pf) {} - void operator()(const T& r, A x) const { (r.*f)(x); } + 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 (T::*f)(A) const; + void (_Tp::*_M_f)(_Arg) const; }; #endif /* __STL_CLASS_PARTIAL_SPECIALIZATION */ -// Mem_fun adaptor helper functions. There are only four: -// mem_fun, mem_fun_ref, mem_fun1, mem_fun1_ref. +// 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 S, class T> -inline mem_fun_t<S,T> mem_fun(S (T::*f)()) { - return mem_fun_t<S,T>(f); -} +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 S, class T> -inline const_mem_fun_t<S,T> mem_fun(S (T::*f)() const) { - return const_mem_fun_t<S,T>(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 S, class T> -inline mem_fun_ref_t<S,T> mem_fun_ref(S (T::*f)()) { - return mem_fun_ref_t<S,T>(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 S, class T> -inline const_mem_fun_ref_t<S,T> mem_fun_ref(S (T::*f)() const) { - return const_mem_fun_ref_t<S,T>(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 S, class T, class A> -inline mem_fun1_t<S,T,A> mem_fun1(S (T::*f)(A)) { - return mem_fun1_t<S,T,A>(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 S, class T, class A> -inline const_mem_fun1_t<S,T,A> mem_fun1(S (T::*f)(A) const) { - return const_mem_fun1_t<S,T,A>(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 S, class T, class A> -inline mem_fun1_ref_t<S,T,A> mem_fun1_ref(S (T::*f)(A)) { - return mem_fun1_ref_t<S,T,A>(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 S, class T, class A> -inline const_mem_fun1_ref_t<S,T,A> mem_fun1_ref(S (T::*f)(A) const) { - return const_mem_fun1_ref_t<S,T,A>(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 |