43 #ifndef _GLIBCXX_FUNCTIONAL
44 #define _GLIBCXX_FUNCTIONAL 1
46 #pragma GCC system_header
51 #if __cplusplus >= 201103L
58 #include <bits/std_function.h>
59 #if __cplusplus > 201402L
60 # include <unordered_map>
67 namespace std _GLIBCXX_VISIBILITY(default)
69 _GLIBCXX_BEGIN_NAMESPACE_VERSION
71 #if __cplusplus > 201402L
72 # define __cpp_lib_invoke 201411
75 template<
typename _Callable,
typename... _Args>
76 inline invoke_result_t<_Callable, _Args...>
77 invoke(_Callable&& __fn, _Args&&... __args)
78 noexcept(is_nothrow_invocable_v<_Callable, _Args...>)
80 return std::__invoke(std::forward<_Callable>(__fn),
81 std::forward<_Args>(__args)...);
85 template<
typename... _Types>
86 struct _Pack : integral_constant<size_t, sizeof...(_Types)>
89 template<
typename _From,
typename _To,
bool = _From::value == _To::value>
93 template<
typename... _From,
typename... _To>
94 struct _AllConvertible<_Pack<_From...>, _Pack<_To...>, true>
95 : __and_<is_convertible<_From, _To>...>
98 template<
typename _Tp1,
typename _Tp2>
99 using _NotSame = __not_<is_same<typename std::decay<_Tp1>::type,
100 typename std::decay<_Tp2>::type>>;
102 template<
typename _Signature>
103 struct _Mem_fn_traits;
105 template<
typename _Res,
typename _Class,
typename... _ArgTypes>
106 struct _Mem_fn_traits_base
108 using __result_type = _Res;
110 = _Maybe_unary_or_binary_function<_Res, _Class*, _ArgTypes...>;
111 using __arity = integral_constant<size_t,
sizeof...(_ArgTypes)>;
114 #define _GLIBCXX_MEM_FN_TRAITS2(_CV, _REF, _LVAL, _RVAL) \
115 template<typename _Res, typename _Class, typename... _ArgTypes> \
116 struct _Mem_fn_traits<_Res (_Class::*)(_ArgTypes...) _CV _REF> \
117 : _Mem_fn_traits_base<_Res, _CV _Class, _ArgTypes...> \
119 using __vararg = false_type; \
121 template<typename _Res, typename _Class, typename... _ArgTypes> \
122 struct _Mem_fn_traits<_Res (_Class::*)(_ArgTypes... ...) _CV _REF> \
123 : _Mem_fn_traits_base<_Res, _CV _Class, _ArgTypes...> \
125 using __vararg = true_type; \
128 #define _GLIBCXX_MEM_FN_TRAITS(_REF, _LVAL, _RVAL) \
129 _GLIBCXX_MEM_FN_TRAITS2( , _REF, _LVAL, _RVAL) \
130 _GLIBCXX_MEM_FN_TRAITS2(const , _REF, _LVAL, _RVAL) \
131 _GLIBCXX_MEM_FN_TRAITS2(volatile , _REF, _LVAL, _RVAL) \
132 _GLIBCXX_MEM_FN_TRAITS2(const volatile, _REF, _LVAL, _RVAL)
136 _GLIBCXX_MEM_FN_TRAITS(&&,
false_type, true_type)
138 #if __cplusplus > 201402L
139 _GLIBCXX_MEM_FN_TRAITS(noexcept, true_type, true_type)
140 _GLIBCXX_MEM_FN_TRAITS(& noexcept, true_type, false_type)
141 _GLIBCXX_MEM_FN_TRAITS(&& noexcept, false_type, true_type)
144 #undef _GLIBCXX_MEM_FN_TRAITS
145 #undef _GLIBCXX_MEM_FN_TRAITS2
147 template<
typename _MemFunPtr,
148 bool __is_mem_fn = is_member_function_pointer<_MemFunPtr>::value>
150 :
public _Mem_fn_traits<_MemFunPtr>::__maybe_type
152 using _Traits = _Mem_fn_traits<_MemFunPtr>;
154 using _Arity =
typename _Traits::__arity;
155 using _Varargs =
typename _Traits::__vararg;
157 template<
typename _Func,
typename... _BoundArgs>
158 friend struct _Bind_check_arity;
164 using result_type =
typename _Traits::__result_type;
167 _Mem_fn_base(_MemFunPtr __pmf) noexcept : _M_pmf(__pmf) { }
169 template<
typename... _Args>
171 operator()(_Args&&... __args) const
173 std::__invoke(_M_pmf, std::
forward<_Args>(__args)...)))
174 -> decltype(std::__invoke(_M_pmf, std::
forward<_Args>(__args)...))
175 {
return std::__invoke(_M_pmf, std::forward<_Args>(__args)...); }
179 template<
typename _MemObjPtr>
180 class _Mem_fn_base<_MemObjPtr, false>
182 using _Arity = integral_constant<size_t, 0>;
185 template<
typename _Func,
typename... _BoundArgs>
186 friend struct _Bind_check_arity;
192 _Mem_fn_base(_MemObjPtr __pm) noexcept : _M_pm(__pm) { }
194 template<
typename _Tp>
196 operator()(_Tp&& __obj) const
197 noexcept(noexcept(std::__invoke(_M_pm, std::
forward<_Tp>(__obj))))
198 -> decltype(std::__invoke(_M_pm, std::
forward<_Tp>(__obj)))
199 {
return std::__invoke(_M_pm, std::forward<_Tp>(__obj)); }
202 template<
typename _MemberPo
inter>
205 template<
typename _Res,
typename _Class>
206 struct _Mem_fn<_Res _Class::*>
207 : _Mem_fn_base<_Res _Class::*>
209 using _Mem_fn_base<_Res _Class::*>::_Mem_fn_base;
219 template<
typename _Tp,
typename _Class>
220 inline _Mem_fn<_Tp _Class::*>
223 return _Mem_fn<_Tp _Class::*>(__pm);
234 template<
typename _Tp>
236 :
public false_type { };
245 template<
typename _Tp>
250 #if __cplusplus > 201402L
251 template <
typename _Tp>
inline constexpr
bool is_bind_expression_v
253 template <
typename _Tp>
inline constexpr
int is_placeholder_v
262 _GLIBCXX_END_NAMESPACE_VERSION
268 namespace placeholders
270 _GLIBCXX_BEGIN_NAMESPACE_VERSION
304 _GLIBCXX_END_NAMESPACE_VERSION
307 _GLIBCXX_BEGIN_NAMESPACE_VERSION
326 template<std::
size_t __i,
typename _Tuple>
327 using _Safe_tuple_element_t
328 =
typename enable_if<(__i < tuple_size<_Tuple>::value),
329 tuple_element<__i, _Tuple>>::type::type;
342 template<
typename _Arg,
343 bool _IsBindExp = is_bind_expression<_Arg>::value,
344 bool _IsPlaceholder = (is_placeholder<_Arg>::value > 0)>
352 template<
typename _Tp>
360 template<
typename _CVRef,
typename _Tuple>
362 operator()(_CVRef& __arg, _Tuple&)
const volatile
363 {
return __arg.get(); }
372 template<
typename _Arg>
373 class _Mu<_Arg, true, false>
376 template<
typename _CVArg,
typename... _Args>
378 operator()(_CVArg& __arg,
380 -> decltype(__arg(declval<_Args>()...))
383 typedef typename _Build_index_tuple<
sizeof...(_Args)>::__type
385 return this->__call(__arg, __tuple, _Indexes());
391 template<
typename _CVArg,
typename... _Args, std::size_t... _Indexes>
394 const _Index_tuple<_Indexes...>&)
const volatile
395 -> decltype(__arg(declval<_Args>()...))
397 return __arg(std::get<_Indexes>(std::move(__tuple))...);
406 template<
typename _Arg>
407 class _Mu<_Arg, false, true>
410 template<
typename _Tuple>
411 _Safe_tuple_element_t<(is_placeholder<_Arg>::value - 1), _Tuple>&&
412 operator()(
const volatile _Arg&, _Tuple& __tuple)
const volatile
415 ::std::get<(is_placeholder<_Arg>::value - 1)>(std::move(__tuple));
424 template<
typename _Arg>
425 class _Mu<_Arg, false, false>
428 template<
typename _CVArg,
typename _Tuple>
430 operator()(_CVArg&& __arg, _Tuple&)
const volatile
431 {
return std::forward<_CVArg>(__arg); }
435 template<std::size_t _Ind,
typename... _Tp>
438 -> __tuple_element_t<_Ind,
tuple<_Tp...>>
volatile&
439 {
return std::get<_Ind>(
const_cast<tuple<_Tp...
>&>(__tuple)); }
442 template<std::size_t _Ind,
typename... _Tp>
444 __volget(
const volatile tuple<_Tp...>& __tuple)
445 -> __tuple_element_t<_Ind, tuple<_Tp...>>
const volatile&
446 {
return std::get<_Ind>(
const_cast<const tuple<_Tp...
>&>(__tuple)); }
449 template<
typename _Signature>
452 template<
typename _Functor,
typename... _Bound_args>
453 class _Bind<_Functor(_Bound_args...)>
456 typedef typename _Build_index_tuple<
sizeof...(_Bound_args)>::__type
460 tuple<_Bound_args...> _M_bound_args;
463 template<
typename _Result,
typename... _Args, std::size_t... _Indexes>
467 return std::__invoke(_M_f,
473 template<
typename _Result,
typename... _Args, std::size_t... _Indexes>
477 return std::__invoke(_M_f,
483 template<
typename _Result,
typename... _Args, std::size_t... _Indexes>
485 __call_v(tuple<_Args...>&& __args,
486 _Index_tuple<_Indexes...>)
volatile
488 return std::__invoke(_M_f,
489 _Mu<_Bound_args>()(__volget<_Indexes>(_M_bound_args), __args)...
494 template<
typename _Result,
typename... _Args, std::size_t... _Indexes>
496 __call_c_v(tuple<_Args...>&& __args,
497 _Index_tuple<_Indexes...>)
const volatile
499 return std::__invoke(_M_f,
500 _Mu<_Bound_args>()(__volget<_Indexes>(_M_bound_args), __args)...
504 template<
typename _BoundArg,
typename _CallArgs>
505 using _Mu_type = decltype(
506 _Mu<
typename remove_cv<_BoundArg>::type>()(
507 std::declval<_BoundArg&>(), std::declval<_CallArgs&>()) );
509 template<
typename _Fn,
typename _CallArgs,
typename... _BArgs>
511 =
typename result_of< _Fn&(_Mu_type<_BArgs, _CallArgs>&&...) >::type;
513 template<
typename _CallArgs>
514 using _Res_type = _Res_type_impl<_Functor, _CallArgs, _Bound_args...>;
516 template<
typename _CallArgs>
517 using __dependent =
typename
518 enable_if<bool(tuple_size<_CallArgs>::value+1), _Functor>::type;
520 template<
typename _CallArgs,
template<
class>
class __cv_quals>
521 using _Res_type_cv = _Res_type_impl<
522 typename __cv_quals<__dependent<_CallArgs>>::type,
524 typename __cv_quals<_Bound_args>::type...>;
527 template<
typename... _Args>
528 explicit _Bind(
const _Functor& __f, _Args&&... __args)
529 : _M_f(__f), _M_bound_args(std::
forward<_Args>(__args)...)
532 template<
typename... _Args>
533 explicit _Bind(_Functor&& __f, _Args&&... __args)
534 : _M_f(std::move(__f)), _M_bound_args(std::
forward<_Args>(__args)...)
537 _Bind(
const _Bind&) =
default;
540 : _M_f(std::move(__b._M_f)), _M_bound_args(std::move(__b._M_bound_args))
544 template<
typename... _Args,
545 typename _Result = _Res_type<tuple<_Args...>>>
547 operator()(_Args&&... __args)
549 return this->__call<_Result>(
550 std::forward_as_tuple(std::forward<_Args>(__args)...),
555 template<
typename... _Args,
556 typename _Result = _Res_type_cv<tuple<_Args...>, add_const>>
558 operator()(_Args&&... __args)
const
560 return this->__call_c<_Result>(
561 std::forward_as_tuple(std::forward<_Args>(__args)...),
565 #if __cplusplus > 201402L
566 # define _GLIBCXX_DEPR_BIND \
567 [[deprecated("std::bind does not support volatile in C++17")]]
569 # define _GLIBCXX_DEPR_BIND
572 template<
typename... _Args,
573 typename _Result = _Res_type_cv<tuple<_Args...>, add_volatile>>
576 operator()(_Args&&... __args)
volatile
578 return this->__call_v<_Result>(
579 std::forward_as_tuple(std::forward<_Args>(__args)...),
584 template<
typename... _Args,
585 typename _Result = _Res_type_cv<tuple<_Args...>, add_cv>>
588 operator()(_Args&&... __args)
const volatile
590 return this->__call_c_v<_Result>(
591 std::forward_as_tuple(std::forward<_Args>(__args)...),
597 template<
typename _Result,
typename _Signature>
600 template<
typename _Result,
typename _Functor,
typename... _Bound_args>
603 typedef typename _Build_index_tuple<
sizeof...(_Bound_args)>::__type
607 tuple<_Bound_args...> _M_bound_args;
610 template<
typename _Res>
611 using __enable_if_void
612 =
typename enable_if<is_void<_Res>{}>::type;
614 template<
typename _Res>
615 using __disable_if_void
616 =
typename enable_if<!is_void<_Res>{}, _Result>::type;
619 template<
typename _Res,
typename... _Args, std::size_t... _Indexes>
620 __disable_if_void<_Res>
624 (std::get<_Indexes>(_M_bound_args), __args)...);
628 template<
typename _Res,
typename... _Args, std::size_t... _Indexes>
629 __enable_if_void<_Res>
633 (std::get<_Indexes>(_M_bound_args), __args)...);
637 template<
typename _Res,
typename... _Args, std::size_t... _Indexes>
638 __disable_if_void<_Res>
642 (std::get<_Indexes>(_M_bound_args), __args)...);
646 template<
typename _Res,
typename... _Args, std::size_t... _Indexes>
647 __enable_if_void<_Res>
651 (std::get<_Indexes>(_M_bound_args), __args)...);
655 template<
typename _Res,
typename... _Args, std::size_t... _Indexes>
656 __disable_if_void<_Res>
660 (__volget<_Indexes>(_M_bound_args), __args)...);
664 template<
typename _Res,
typename... _Args, std::size_t... _Indexes>
665 __enable_if_void<_Res>
669 (__volget<_Indexes>(_M_bound_args), __args)...);
673 template<
typename _Res,
typename... _Args, std::size_t... _Indexes>
674 __disable_if_void<_Res>
676 _Index_tuple<_Indexes...>)
const volatile
679 (__volget<_Indexes>(_M_bound_args), __args)...);
683 template<
typename _Res,
typename... _Args, std::size_t... _Indexes>
684 __enable_if_void<_Res>
686 _Index_tuple<_Indexes...>)
const volatile
689 (__volget<_Indexes>(_M_bound_args), __args)...);
693 typedef _Result result_type;
695 template<
typename... _Args>
696 explicit _Bind_result(
const _Functor& __f, _Args&&... __args)
697 : _M_f(__f), _M_bound_args(std::forward<_Args>(__args)...)
700 template<
typename... _Args>
701 explicit _Bind_result(_Functor&& __f, _Args&&... __args)
702 : _M_f(std::move(__f)), _M_bound_args(std::forward<_Args>(__args)...)
705 _Bind_result(
const _Bind_result&) =
default;
707 _Bind_result(_Bind_result&& __b)
708 : _M_f(std::move(__b._M_f)), _M_bound_args(std::move(__b._M_bound_args))
712 template<
typename... _Args>
714 operator()(_Args&&... __args)
716 return this->__call<_Result>(
717 std::forward_as_tuple(std::forward<_Args>(__args)...),
722 template<
typename... _Args>
724 operator()(_Args&&... __args)
const
726 return this->__call<_Result>(
727 std::forward_as_tuple(std::forward<_Args>(__args)...),
732 template<
typename... _Args>
735 operator()(_Args&&... __args)
volatile
737 return this->__call<_Result>(
738 std::forward_as_tuple(std::forward<_Args>(__args)...),
743 template<
typename... _Args>
746 operator()(_Args&&... __args)
const volatile
748 return this->__call<_Result>(
749 std::forward_as_tuple(std::forward<_Args>(__args)...),
753 #undef _GLIBCXX_DEPR_BIND
759 template<
typename _Signature>
761 :
public true_type { };
767 template<
typename _Signature>
769 :
public true_type { };
775 template<
typename _Signature>
777 :
public true_type { };
783 template<
typename _Signature>
785 :
public true_type { };
791 template<
typename _Result,
typename _Signature>
793 :
public true_type { };
799 template<
typename _Result,
typename _Signature>
801 :
public true_type { };
807 template<
typename _Result,
typename _Signature>
809 :
public true_type { };
815 template<
typename _Result,
typename _Signature>
817 :
public true_type { };
819 template<
typename _Func,
typename... _BoundArgs>
820 struct _Bind_check_arity { };
822 template<
typename _Ret,
typename... _Args,
typename... _BoundArgs>
823 struct _Bind_check_arity<_Ret (*)(_Args...), _BoundArgs...>
825 static_assert(
sizeof...(_BoundArgs) ==
sizeof...(_Args),
826 "Wrong number of arguments for function");
829 template<
typename _Ret,
typename... _Args,
typename... _BoundArgs>
830 struct _Bind_check_arity<_Ret (*)(_Args......), _BoundArgs...>
832 static_assert(
sizeof...(_BoundArgs) >=
sizeof...(_Args),
833 "Wrong number of arguments for function");
836 template<
typename _Tp,
typename _Class,
typename... _BoundArgs>
837 struct _Bind_check_arity<_Tp _Class::*, _BoundArgs...>
839 using _Arity =
typename _Mem_fn<_Tp _Class::*>::_Arity;
840 using _Varargs =
typename _Mem_fn<_Tp _Class::*>::_Varargs;
841 static_assert(_Varargs::value
842 ?
sizeof...(_BoundArgs) >= _Arity::value + 1
843 :
sizeof...(_BoundArgs) == _Arity::value + 1,
844 "Wrong number of arguments for pointer-to-member");
850 template<typename _Tp, typename _Tp2 = typename decay<_Tp>::type>
851 using __is_socketlike = __or_<is_integral<_Tp2>, is_enum<_Tp2>>;
853 template<
bool _SocketLike,
typename _Func,
typename... _BoundArgs>
855 : _Bind_check_arity<typename decay<_Func>::type, _BoundArgs...>
857 typedef typename decay<_Func>::type __func_type;
858 typedef _Bind<__func_type(typename decay<_BoundArgs>::type...)> type;
864 template<
typename _Func,
typename... _BoundArgs>
865 struct _Bind_helper<true, _Func, _BoundArgs...>
872 template<
typename _Func,
typename... _BoundArgs>
874 _Bind_helper<__is_socketlike<_Func>::value, _Func, _BoundArgs...>::type
875 bind(_Func&& __f, _BoundArgs&&... __args)
877 typedef _Bind_helper<
false, _Func, _BoundArgs...> __helper_type;
878 return typename __helper_type::type(std::forward<_Func>(__f),
879 std::forward<_BoundArgs>(__args)...);
882 template<
typename _Result,
typename _Func,
typename... _BoundArgs>
883 struct _Bindres_helper
884 : _Bind_check_arity<typename decay<_Func>::type, _BoundArgs...>
886 typedef typename decay<_Func>::type __functor_type;
887 typedef _Bind_result<_Result,
888 __functor_type(
typename decay<_BoundArgs>::type...)>
896 template<
typename _Result,
typename _Func,
typename... _BoundArgs>
898 typename _Bindres_helper<_Result, _Func, _BoundArgs...>::type
899 bind(_Func&& __f, _BoundArgs&&... __args)
901 typedef _Bindres_helper<_Result, _Func, _BoundArgs...> __helper_type;
902 return typename __helper_type::type(std::forward<_Func>(__f),
903 std::forward<_BoundArgs>(__args)...);
906 #if __cplusplus >= 201402L
908 template<
typename _Fn>
911 template<
typename _Fn2,
typename... _Args>
912 using __inv_res_t =
typename __invoke_result<_Fn2, _Args...>::type;
914 template<
typename _Tp>
915 static decltype(!std::declval<_Tp>())
916 _S_not() noexcept(noexcept(!std::declval<_Tp>()));
919 template<
typename _Fn2>
921 : _M_fn(std::forward<_Fn2>(__fn)) { }
930 #define _GLIBCXX_NOT_FN_CALL_OP( _QUALS ) \
931 template<typename... _Args> \
932 decltype(_S_not<__inv_res_t<_Fn _QUALS, _Args...>>()) \
933 operator()(_Args&&... __args) _QUALS \
934 noexcept(noexcept(_S_not<__inv_res_t<_Fn _QUALS, _Args...>>())) \
936 return !std::__invoke(std::forward< _Fn _QUALS >(_M_fn), \
937 std::forward<_Args>(__args)...); \
939 _GLIBCXX_NOT_FN_CALL_OP( & )
940 _GLIBCXX_NOT_FN_CALL_OP(
const & )
941 _GLIBCXX_NOT_FN_CALL_OP( && )
942 _GLIBCXX_NOT_FN_CALL_OP(
const && )
943 #undef _GLIBCXX_NOT_FN_CALL
949 #if __cplusplus > 201402L
950 #define __cpp_lib_not_fn 201603
952 template<
typename _Fn>
955 noexcept(std::is_nothrow_constructible<std::decay_t<_Fn>, _Fn&&>::value)
961 #define __cpp_lib_boyer_moore_searcher 201603
963 template<
typename _ForwardIterator1,
typename _BinaryPredicate = equal_to<>>
964 class default_searcher
967 default_searcher(_ForwardIterator1 __pat_first,
968 _ForwardIterator1 __pat_last,
969 _BinaryPredicate __pred = _BinaryPredicate())
970 : _M_m(__pat_first, __pat_last, std::move(__pred))
973 template<
typename _ForwardIterator2>
974 pair<_ForwardIterator2, _ForwardIterator2>
975 operator()(_ForwardIterator2 __first, _ForwardIterator2 __last)
const
977 _ForwardIterator2 __first_ret =
978 std::search(__first, __last, std::get<0>(_M_m), std::get<1>(_M_m),
981 if (__ret.first != __last)
988 tuple<_ForwardIterator1, _ForwardIterator1, _BinaryPredicate> _M_m;
991 template<
typename _Key,
typename _Tp,
typename _Hash,
typename _Pred>
992 struct __boyer_moore_map_base
994 template<
typename _RAIter>
995 __boyer_moore_map_base(_RAIter __pat,
size_t __patlen,
996 _Hash&& __hf, _Pred&& __pred)
997 : _M_bad_char{ __patlen, std::move(__hf), std::move(__pred) }
1000 for (__diff_type __i = 0; __i < __patlen - 1; ++__i)
1001 _M_bad_char[__pat[__i]] = __patlen - 1 - __i;
1004 using __diff_type = _Tp;
1007 _M_lookup(_Key __key, __diff_type __not_found)
const
1009 auto __iter = _M_bad_char.find(__key);
1010 if (__iter == _M_bad_char.end())
1012 return __iter->second;
1016 _M_pred()
const {
return _M_bad_char.key_eq(); }
1018 _GLIBCXX_STD_C::unordered_map<_Key, _Tp, _Hash, _Pred> _M_bad_char;
1021 template<
typename _Tp,
size_t _Len,
typename _Pred>
1022 struct __boyer_moore_array_base
1024 template<
typename _RAIter,
typename _Unused>
1025 __boyer_moore_array_base(_RAIter __pat,
size_t __patlen,
1026 _Unused&&, _Pred&& __pred)
1027 : _M_bad_char{ _GLIBCXX_STD_C::array<_Tp, _Len>{}, std::move(__pred) }
1029 std::get<0>(_M_bad_char).fill(__patlen);
1031 for (__diff_type __i = 0; __i < __patlen - 1; ++__i)
1033 auto __ch = __pat[__i];
1034 using _UCh = make_unsigned_t<decltype(__ch)>;
1035 auto __uch =
static_cast<_UCh
>(__ch);
1036 std::get<0>(_M_bad_char)[__uch] = __patlen - 1 - __i;
1040 using __diff_type = _Tp;
1042 template<
typename _Key>
1044 _M_lookup(_Key __key, __diff_type __not_found)
const
1046 auto __ukey =
static_cast<make_unsigned_t<_Key>
>(__key);
1049 return std::get<0>(_M_bad_char)[__ukey];
1053 _M_pred()
const {
return std::get<1>(_M_bad_char); }
1055 tuple<_GLIBCXX_STD_C::array<_Tp, _Len>, _Pred> _M_bad_char;
1058 template<
typename _Pred>
1059 struct __is_std_equal_to : false_type { };
1062 struct __is_std_equal_to<equal_to<void>> : true_type { };
1066 template<
typename _RAIter,
typename _Hash,
typename _Pred,
1067 typename _Val =
typename iterator_traits<_RAIter>::value_type,
1068 typename _Diff =
typename iterator_traits<_RAIter>::difference_type>
1069 using __boyer_moore_base_t
1070 = conditional_t<sizeof(_Val) == 1 && is_integral<_Val>::value
1071 && __is_std_equal_to<_Pred>::value,
1072 __boyer_moore_array_base<_Diff, 256, _Pred>,
1073 __boyer_moore_map_base<_Val, _Diff, _Hash, _Pred>>;
1075 template<
typename _RAIter,
typename _Hash
1076 = hash<typename iterator_traits<_RAIter>::value_type>,
1077 typename _BinaryPredicate = equal_to<>>
1078 class boyer_moore_searcher
1079 : __boyer_moore_base_t<_RAIter, _Hash, _BinaryPredicate>
1081 using _Base = __boyer_moore_base_t<_RAIter, _Hash, _BinaryPredicate>;
1082 using typename _Base::__diff_type;
1085 boyer_moore_searcher(_RAIter __pat_first, _RAIter __pat_last,
1086 _Hash __hf = _Hash(),
1087 _BinaryPredicate __pred = _BinaryPredicate());
1089 template<
typename _RandomAccessIterator2>
1090 pair<_RandomAccessIterator2, _RandomAccessIterator2>
1091 operator()(_RandomAccessIterator2 __first,
1092 _RandomAccessIterator2 __last)
const;
1096 _M_is_prefix(_RAIter __word, __diff_type __len,
1099 const auto& __pred = this->_M_pred();
1100 __diff_type __suffixlen = __len - __pos;
1101 for (__diff_type __i = 0; __i < __suffixlen; ++__i)
1102 if (!__pred(__word[__i], __word[__pos + __i]))
1108 _M_suffix_length(_RAIter __word, __diff_type __len,
1111 const auto& __pred = this->_M_pred();
1112 __diff_type __i = 0;
1113 while (__pred(__word[__pos - __i], __word[__len - 1 - __i])
1121 template<
typename _Tp>
1123 _M_bad_char_shift(_Tp __c)
const
1124 {
return this->_M_lookup(__c, _M_pat_end - _M_pat); }
1128 _GLIBCXX_STD_C::vector<__diff_type> _M_good_suffix;
1131 template<
typename _RAIter,
typename _Hash
1132 = hash<typename iterator_traits<_RAIter>::value_type>,
1133 typename _BinaryPredicate = equal_to<>>
1134 class boyer_moore_horspool_searcher
1135 : __boyer_moore_base_t<_RAIter, _Hash, _BinaryPredicate>
1137 using _Base = __boyer_moore_base_t<_RAIter, _Hash, _BinaryPredicate>;
1138 using typename _Base::__diff_type;
1141 boyer_moore_horspool_searcher(_RAIter __pat,
1143 _Hash __hf = _Hash(),
1144 _BinaryPredicate __pred
1145 = _BinaryPredicate())
1146 : _Base(__pat, __pat_end - __pat, std::move(__hf), std::move(__pred)),
1147 _M_pat(__pat), _M_pat_end(__pat_end)
1150 template<
typename _RandomAccessIterator2>
1151 pair<_RandomAccessIterator2, _RandomAccessIterator2>
1152 operator()(_RandomAccessIterator2 __first,
1153 _RandomAccessIterator2 __last)
const
1155 const auto& __pred = this->_M_pred();
1156 auto __patlen = _M_pat_end - _M_pat;
1159 auto __len = __last - __first;
1160 while (__len >= __patlen)
1162 for (
auto __scan = __patlen - 1;
1163 __pred(__first[__scan], _M_pat[__scan]); --__scan)
1166 auto __shift = _M_bad_char_shift(__first[__patlen - 1]);
1174 template<
typename _Tp>
1176 _M_bad_char_shift(_Tp __c)
const
1177 {
return this->_M_lookup(__c, _M_pat_end - _M_pat); }
1183 template<
typename _RAIter,
typename _Hash,
typename _BinaryPredicate>
1184 boyer_moore_searcher<_RAIter, _Hash, _BinaryPredicate>::
1185 boyer_moore_searcher(_RAIter __pat, _RAIter __pat_end,
1186 _Hash __hf, _BinaryPredicate __pred)
1187 : _Base(__pat, __pat_end - __pat, std::move(__hf), std::move(__pred)),
1188 _M_pat(__pat), _M_pat_end(__pat_end), _M_good_suffix(__pat_end - __pat)
1190 auto __patlen = __pat_end - __pat;
1193 __diff_type __last_prefix = __patlen - 1;
1194 for (__diff_type __p = __patlen - 1; __p >= 0; --__p)
1196 if (_M_is_prefix(__pat, __patlen, __p + 1))
1197 __last_prefix = __p + 1;
1198 _M_good_suffix[__p] = __last_prefix + (__patlen - 1 - __p);
1200 for (__diff_type __p = 0; __p < __patlen - 1; ++__p)
1202 auto __slen = _M_suffix_length(__pat, __patlen, __p);
1203 auto __pos = __patlen - 1 - __slen;
1204 if (!__pred(__pat[__p - __slen], __pat[__pos]))
1205 _M_good_suffix[__pos] = __patlen - 1 - __p + __slen;
1209 template<
typename _RAIter,
typename _Hash,
typename _BinaryPredicate>
1210 template<
typename _RandomAccessIterator2>
1211 pair<_RandomAccessIterator2, _RandomAccessIterator2>
1212 boyer_moore_searcher<_RAIter, _Hash, _BinaryPredicate>::
1213 operator()(_RandomAccessIterator2 __first,
1214 _RandomAccessIterator2 __last)
const
1216 auto __patlen = _M_pat_end - _M_pat;
1219 const auto& __pred = this->_M_pred();
1220 __diff_type __i = __patlen - 1;
1221 auto __stringlen = __last - __first;
1222 while (__i < __stringlen)
1224 __diff_type __j = __patlen - 1;
1225 while (__j >= 0 && __pred(__first[__i], _M_pat[__j]))
1232 const auto __match = __first + __i + 1;
1235 __i +=
std::max(_M_bad_char_shift(__first[__i]),
1236 _M_good_suffix[__j]);
1244 _GLIBCXX_END_NAMESPACE_VERSION
1249 #endif // _GLIBCXX_FUNCTIONAL
constexpr _Tp && forward(typename std::remove_reference< _Tp >::type &__t) noexcept
Forward an lvalue.
constexpr pair< typename __decay_and_strip< _T1 >::__type, typename __decay_and_strip< _T2 >::__type > make_pair(_T1 &&__x, _T2 &&__y)
A convenience wrapper for creating a pair from two objects.
Type of the function object returned from bind<R>().
_GLIBCXX14_CONSTEXPR const _Tp & max(const _Tp &, const _Tp &)
This does what you think it does.
Primary class template for reference_wrapper.
integral_constant< bool, false > false_type
The type used as a compile-time boolean with false value.
Determines if the given type _Tp is a function object that should be treated as a subexpression when ...
integral_constant< bool, true > true_type
The type used as a compile-time boolean with true value.
Primary class template, tuple.
Type of the function object returned from bind().
_GLIBCXX17_CONSTEXPR iterator_traits< _InputIterator >::difference_type distance(_InputIterator __first, _InputIterator __last)
A generalization of pointer arithmetic.
Determines if the given type _Tp is a placeholder in a bind() expression and, if so, which placeholder it is.
_ForwardIterator1 search(_ForwardIterator1 __first1, _ForwardIterator1 __last1, _ForwardIterator2 __first2, _ForwardIterator2 __last2, _BinaryPredicate __predicate)
Search a sequence for a matching sub-sequence using a predicate.
The type of placeholder objects defined by libstdc++.
_Mem_fn< _Tp _Class::* > mem_fn(_Tp _Class::*__pm) noexcept
Returns a function object that forwards to the member pointer pm.
_GLIBCXX17_CONSTEXPR void advance(_InputIterator &__i, _Distance __n)
A generalization of pointer arithmetic.
_Bind_helper< __is_socketlike< _Func >::value, _Func, _BoundArgs...>::type bind(_Func &&__f, _BoundArgs &&...__args)
Function template for std::bind.