Cider Isn't Darwin Emulation, Really
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See LICENSE.TXT for details.////===----------------------------------------------------------------------===//#ifndef _LIBCPP_STRING_VIEW#define _LIBCPP_STRING_VIEW/*string_view synopsisnamespace std { // 7.2, Class template basic_string_view template<class charT, class traits = char_traits<charT>> class basic_string_view; // 7.9, basic_string_view non-member comparison functions template<class charT, class traits> constexpr bool operator==(basic_string_view<charT, traits> x, basic_string_view<charT, traits> y) noexcept; template<class charT, class traits> constexpr bool operator!=(basic_string_view<charT, traits> x, basic_string_view<charT, traits> y) noexcept; template<class charT, class traits> constexpr bool operator< (basic_string_view<charT, traits> x, basic_string_view<charT, traits> y) noexcept; template<class charT, class traits> constexpr bool operator> (basic_string_view<charT, traits> x, basic_string_view<charT, traits> y) noexcept; template<class charT, class traits> constexpr bool operator<=(basic_string_view<charT, traits> x, basic_string_view<charT, traits> y) noexcept; template<class charT, class traits> constexpr bool operator>=(basic_string_view<charT, traits> x, basic_string_view<charT, traits> y) noexcept; // see below, sufficient additional overloads of comparison functions // 7.10, Inserters and extractors template<class charT, class traits> basic_ostream<charT, traits>& operator<<(basic_ostream<charT, traits>& os, basic_string_view<charT, traits> str); // basic_string_view typedef names typedef basic_string_view<char> string_view; typedef basic_string_view<char16_t> u16string_view; typedef basic_string_view<char32_t> u32string_view; typedef basic_string_view<wchar_t> wstring_view; template<class charT, class traits = char_traits<charT>> class basic_string_view { public: // types typedef traits traits_type; typedef charT value_type; typedef charT* pointer; typedef const charT* const_pointer; typedef charT& reference; typedef const charT& const_reference; typedef implementation-defined const_iterator; typedef const_iterator iterator; typedef reverse_iterator<const_iterator> const_reverse_iterator; typedef const_reverse_iterator reverse_iterator; typedef size_t size_type; typedef ptrdiff_t difference_type; static constexpr size_type npos = size_type(-1); // 7.3, basic_string_view constructors and assignment operators constexpr basic_string_view() noexcept; constexpr basic_string_view(const basic_string_view&) noexcept = default; basic_string_view& operator=(const basic_string_view&) noexcept = default; template<class Allocator> constexpr basic_string_view(const charT* str); constexpr basic_string_view(const charT* str, size_type len); // 7.4, basic_string_view iterator support constexpr const_iterator begin() const noexcept; constexpr const_iterator end() const noexcept; constexpr const_iterator cbegin() const noexcept; constexpr const_iterator cend() const noexcept; const_reverse_iterator rbegin() const noexcept; const_reverse_iterator rend() const noexcept; const_reverse_iterator crbegin() const noexcept; const_reverse_iterator crend() const noexcept; // 7.5, basic_string_view capacity constexpr size_type size() const noexcept; constexpr size_type length() const noexcept; constexpr size_type max_size() const noexcept; constexpr bool empty() const noexcept; // 7.6, basic_string_view element access constexpr const_reference operator[](size_type pos) const; constexpr const_reference at(size_type pos) const; constexpr const_reference front() const; constexpr const_reference back() const; constexpr const_pointer data() const noexcept; // 7.7, basic_string_view modifiers constexpr void remove_prefix(size_type n); constexpr void remove_suffix(size_type n); constexpr void swap(basic_string_view& s) noexcept; size_type copy(charT* s, size_type n, size_type pos = 0) const; constexpr basic_string_view substr(size_type pos = 0, size_type n = npos) const; constexpr int compare(basic_string_view s) const noexcept; constexpr int compare(size_type pos1, size_type n1, basic_string_view s) const; constexpr int compare(size_type pos1, size_type n1, basic_string_view s, size_type pos2, size_type n2) const; constexpr int compare(const charT* s) const; constexpr int compare(size_type pos1, size_type n1, const charT* s) const; constexpr int compare(size_type pos1, size_type n1, const charT* s, size_type n2) const; constexpr size_type find(basic_string_view s, size_type pos = 0) const noexcept; constexpr size_type find(charT c, size_type pos = 0) const noexcept; constexpr size_type find(const charT* s, size_type pos, size_type n) const; constexpr size_type find(const charT* s, size_type pos = 0) const; constexpr size_type rfind(basic_string_view s, size_type pos = npos) const noexcept; constexpr size_type rfind(charT c, size_type pos = npos) const noexcept; constexpr size_type rfind(const charT* s, size_type pos, size_type n) const; constexpr size_type rfind(const charT* s, size_type pos = npos) const; constexpr size_type find_first_of(basic_string_view s, size_type pos = 0) const noexcept; constexpr size_type find_first_of(charT c, size_type pos = 0) const noexcept; constexpr size_type find_first_of(const charT* s, size_type pos, size_type n) const; constexpr size_type find_first_of(const charT* s, size_type pos = 0) const; constexpr size_type find_last_of(basic_string_view s, size_type pos = npos) const noexcept; constexpr size_type find_last_of(charT c, size_type pos = npos) const noexcept; constexpr size_type find_last_of(const charT* s, size_type pos, size_type n) const; constexpr size_type find_last_of(const charT* s, size_type pos = npos) const; constexpr size_type find_first_not_of(basic_string_view s, size_type pos = 0) const noexcept; constexpr size_type find_first_not_of(charT c, size_type pos = 0) const noexcept; constexpr size_type find_first_not_of(const charT* s, size_type pos, size_type n) const; constexpr size_type find_first_not_of(const charT* s, size_type pos = 0) const; constexpr size_type find_last_not_of(basic_string_view s, size_type pos = npos) const noexcept; constexpr size_type find_last_not_of(charT c, size_type pos = npos) const noexcept; constexpr size_type find_last_not_of(const charT* s, size_type pos, size_type n) const; constexpr size_type find_last_not_of(const charT* s, size_type pos = npos) const; private: const_pointer data_; // exposition only size_type size_; // exposition only }; // 7.11, Hash support template <class T> struct hash; template <> struct hash<string_view>; template <> struct hash<u16string_view>; template <> struct hash<u32string_view>; template <> struct hash<wstring_view>; constexpr basic_string<char> operator "" s( const char *str, size_t len ); // C++17 constexpr basic_string<wchar_t> operator "" s( const wchar_t *str, size_t len ); // C++17 constexpr basic_string<char16_t> operator "" s( const char16_t *str, size_t len ); // C++17 constexpr basic_string<char32_t> operator "" s( const char32_t *str, size_t len ); // C++17} // namespace std*/#include <__config>#include <__string>#include <algorithm>#include <iterator>#include <limits>#include <stdexcept>#include <__debug>#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)#pragma GCC system_header#endif_LIBCPP_PUSH_MACROS#include <__undef_macros>_LIBCPP_BEGIN_NAMESPACE_STDtemplate<class _CharT, class _Traits = char_traits<_CharT> >class _LIBCPP_TEMPLATE_VIS basic_string_view {public: // types typedef _Traits traits_type; typedef _CharT value_type; typedef const _CharT* pointer; typedef const _CharT* const_pointer; typedef const _CharT& reference; typedef const _CharT& const_reference; typedef const_pointer const_iterator; // See [string.view.iterators] typedef const_iterator iterator; typedef _VSTD::reverse_iterator<const_iterator> const_reverse_iterator; typedef const_reverse_iterator reverse_iterator; typedef size_t size_type; typedef ptrdiff_t difference_type; static _LIBCPP_CONSTEXPR const size_type npos = -1; // size_type(-1); static_assert(is_pod<value_type>::value, "Character type of basic_string_view must be a POD"); static_assert((is_same<_CharT, typename traits_type::char_type>::value), "traits_type::char_type must be the same type as CharT"); // [string.view.cons], construct/copy _LIBCPP_CONSTEXPR _LIBCPP_INLINE_VISIBILITY basic_string_view() _NOEXCEPT : __data (nullptr), __size(0) {} _LIBCPP_CONSTEXPR _LIBCPP_INLINE_VISIBILITY basic_string_view(const basic_string_view&) _NOEXCEPT = default; _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY basic_string_view& operator=(const basic_string_view&) _NOEXCEPT = default; _LIBCPP_CONSTEXPR _LIBCPP_INLINE_VISIBILITY basic_string_view(const _CharT* __s, size_type __len) : __data(__s), __size(__len) {// #if _LIBCPP_STD_VER > 11// _LIBCPP_ASSERT(__len == 0 || __s != nullptr, "string_view::string_view(_CharT *, size_t): received nullptr");// #endif } _LIBCPP_CONSTEXPR _LIBCPP_INLINE_VISIBILITY basic_string_view(const _CharT* __s) : __data(__s), __size(_Traits::length(__s)) {} // [string.view.iterators], iterators _LIBCPP_CONSTEXPR _LIBCPP_INLINE_VISIBILITY const_iterator begin() const _NOEXCEPT { return cbegin(); } _LIBCPP_CONSTEXPR _LIBCPP_INLINE_VISIBILITY const_iterator end() const _NOEXCEPT { return cend(); } _LIBCPP_CONSTEXPR _LIBCPP_INLINE_VISIBILITY const_iterator cbegin() const _NOEXCEPT { return __data; } _LIBCPP_CONSTEXPR _LIBCPP_INLINE_VISIBILITY const_iterator cend() const _NOEXCEPT { return __data + __size; } _LIBCPP_CONSTEXPR_AFTER_CXX14 _LIBCPP_INLINE_VISIBILITY const_reverse_iterator rbegin() const _NOEXCEPT { return const_reverse_iterator(cend()); } _LIBCPP_CONSTEXPR_AFTER_CXX14 _LIBCPP_INLINE_VISIBILITY const_reverse_iterator rend() const _NOEXCEPT { return const_reverse_iterator(cbegin()); } _LIBCPP_CONSTEXPR_AFTER_CXX14 _LIBCPP_INLINE_VISIBILITY const_reverse_iterator crbegin() const _NOEXCEPT { return const_reverse_iterator(cend()); } _LIBCPP_CONSTEXPR_AFTER_CXX14 _LIBCPP_INLINE_VISIBILITY const_reverse_iterator crend() const _NOEXCEPT { return const_reverse_iterator(cbegin()); } // [string.view.capacity], capacity _LIBCPP_CONSTEXPR _LIBCPP_INLINE_VISIBILITY size_type size() const _NOEXCEPT { return __size; } _LIBCPP_CONSTEXPR _LIBCPP_INLINE_VISIBILITY size_type length() const _NOEXCEPT { return __size; } _LIBCPP_CONSTEXPR _LIBCPP_INLINE_VISIBILITY size_type max_size() const _NOEXCEPT { return numeric_limits<size_type>::max(); } _LIBCPP_CONSTEXPR bool _LIBCPP_INLINE_VISIBILITY empty() const _NOEXCEPT { return __size == 0; } // [string.view.access], element access _LIBCPP_CONSTEXPR _LIBCPP_INLINE_VISIBILITY const_reference operator[](size_type __pos) const _NOEXCEPT { return __data[__pos]; } _LIBCPP_CONSTEXPR _LIBCPP_INLINE_VISIBILITY const_reference at(size_type __pos) const { return __pos >= size() ? (__throw_out_of_range("string_view::at"), __data[0]) : __data[__pos]; } _LIBCPP_CONSTEXPR _LIBCPP_INLINE_VISIBILITY const_reference front() const { return _LIBCPP_ASSERT(!empty(), "string_view::front(): string is empty"), __data[0]; } _LIBCPP_CONSTEXPR _LIBCPP_INLINE_VISIBILITY const_reference back() const { return _LIBCPP_ASSERT(!empty(), "string_view::back(): string is empty"), __data[__size-1]; } _LIBCPP_CONSTEXPR _LIBCPP_INLINE_VISIBILITY const_pointer data() const _NOEXCEPT { return __data; } // [string.view.modifiers], modifiers: _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY void remove_prefix(size_type __n) _NOEXCEPT { _LIBCPP_ASSERT(__n <= size(), "remove_prefix() can't remove more than size()"); __data += __n; __size -= __n; } _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY void remove_suffix(size_type __n) _NOEXCEPT { _LIBCPP_ASSERT(__n <= size(), "remove_suffix() can't remove more than size()"); __size -= __n; } _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY void swap(basic_string_view& __other) _NOEXCEPT { const value_type *__p = __data; __data = __other.__data; __other.__data = __p; size_type __sz = __size; __size = __other.__size; __other.__size = __sz; } _LIBCPP_INLINE_VISIBILITY size_type copy(_CharT* __s, size_type __n, size_type __pos = 0) const { if (__pos > size()) __throw_out_of_range("string_view::copy"); size_type __rlen = _VSTD::min(__n, size() - __pos); _Traits::copy(__s, data() + __pos, __rlen); return __rlen; } _LIBCPP_CONSTEXPR _LIBCPP_INLINE_VISIBILITY basic_string_view substr(size_type __pos = 0, size_type __n = npos) const { return __pos > size() ? (__throw_out_of_range("string_view::substr"), basic_string_view()) : basic_string_view(data() + __pos, _VSTD::min(__n, size() - __pos)); } _LIBCPP_CONSTEXPR_AFTER_CXX11 int compare(basic_string_view __sv) const _NOEXCEPT { size_type __rlen = _VSTD::min( size(), __sv.size()); int __retval = _Traits::compare(data(), __sv.data(), __rlen); if ( __retval == 0 ) // first __rlen chars matched __retval = size() == __sv.size() ? 0 : ( size() < __sv.size() ? -1 : 1 ); return __retval; } _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY int compare(size_type __pos1, size_type __n1, basic_string_view __sv) const { return substr(__pos1, __n1).compare(__sv); } _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY int compare( size_type __pos1, size_type __n1, basic_string_view __sv, size_type __pos2, size_type __n2) const { return substr(__pos1, __n1).compare(__sv.substr(__pos2, __n2)); } _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY int compare(const _CharT* __s) const _NOEXCEPT { return compare(basic_string_view(__s)); } _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY int compare(size_type __pos1, size_type __n1, const _CharT* __s) const { return substr(__pos1, __n1).compare(basic_string_view(__s)); } _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY int compare(size_type __pos1, size_type __n1, const _CharT* __s, size_type __n2) const { return substr(__pos1, __n1).compare(basic_string_view(__s, __n2)); } // find _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY size_type find(basic_string_view __s, size_type __pos = 0) const _NOEXCEPT { _LIBCPP_ASSERT(__s.size() == 0 || __s.data() != nullptr, "string_view::find(): received nullptr"); return __str_find<value_type, size_type, traits_type, npos> (data(), size(), __s.data(), __pos, __s.size()); } _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY size_type find(_CharT __c, size_type __pos = 0) const _NOEXCEPT { return __str_find<value_type, size_type, traits_type, npos> (data(), size(), __c, __pos); } _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY size_type find(const _CharT* __s, size_type __pos, size_type __n) const { _LIBCPP_ASSERT(__n == 0 || __s != nullptr, "string_view::find(): received nullptr"); return __str_find<value_type, size_type, traits_type, npos> (data(), size(), __s, __pos, __n); } _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY size_type find(const _CharT* __s, size_type __pos = 0) const { _LIBCPP_ASSERT(__s != nullptr, "string_view::find(): received nullptr"); return __str_find<value_type, size_type, traits_type, npos> (data(), size(), __s, __pos, traits_type::length(__s)); } // rfind _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY size_type rfind(basic_string_view __s, size_type __pos = npos) const _NOEXCEPT { _LIBCPP_ASSERT(__s.size() == 0 || __s.data() != nullptr, "string_view::find(): received nullptr"); return __str_rfind<value_type, size_type, traits_type, npos> (data(), size(), __s.data(), __pos, __s.size()); } _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY size_type rfind(_CharT __c, size_type __pos = npos) const _NOEXCEPT { return __str_rfind<value_type, size_type, traits_type, npos> (data(), size(), __c, __pos); } _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY size_type rfind(const _CharT* __s, size_type __pos, size_type __n) const { _LIBCPP_ASSERT(__n == 0 || __s != nullptr, "string_view::rfind(): received nullptr"); return __str_rfind<value_type, size_type, traits_type, npos> (data(), size(), __s, __pos, __n); } _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY size_type rfind(const _CharT* __s, size_type __pos=npos) const { _LIBCPP_ASSERT(__s != nullptr, "string_view::rfind(): received nullptr"); return __str_rfind<value_type, size_type, traits_type, npos> (data(), size(), __s, __pos, traits_type::length(__s)); } // find_first_of _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY size_type find_first_of(basic_string_view __s, size_type __pos = 0) const _NOEXCEPT { _LIBCPP_ASSERT(__s.size() == 0 || __s.data() != nullptr, "string_view::find_first_of(): received nullptr"); return __str_find_first_of<value_type, size_type, traits_type, npos> (data(), size(), __s.data(), __pos, __s.size()); } _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY size_type find_first_of(_CharT __c, size_type __pos = 0) const _NOEXCEPT { return find(__c, __pos); } _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY size_type find_first_of(const _CharT* __s, size_type __pos, size_type __n) const { _LIBCPP_ASSERT(__n == 0 || __s != nullptr, "string_view::find_first_of(): received nullptr"); return __str_find_first_of<value_type, size_type, traits_type, npos> (data(), size(), __s, __pos, __n); } _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY size_type find_first_of(const _CharT* __s, size_type __pos=0) const { _LIBCPP_ASSERT(__s != nullptr, "string_view::find_first_of(): received nullptr"); return __str_find_first_of<value_type, size_type, traits_type, npos> (data(), size(), __s, __pos, traits_type::length(__s)); } // find_last_of _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY size_type find_last_of(basic_string_view __s, size_type __pos=npos) const _NOEXCEPT { _LIBCPP_ASSERT(__s.size() == 0 || __s.data() != nullptr, "string_view::find_last_of(): received nullptr"); return __str_find_last_of<value_type, size_type, traits_type, npos> (data(), size(), __s.data(), __pos, __s.size()); } _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY size_type find_last_of(_CharT __c, size_type __pos = npos) const _NOEXCEPT { return rfind(__c, __pos); } _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY size_type find_last_of(const _CharT* __s, size_type __pos, size_type __n) const { _LIBCPP_ASSERT(__n == 0 || __s != nullptr, "string_view::find_last_of(): received nullptr"); return __str_find_last_of<value_type, size_type, traits_type, npos> (data(), size(), __s, __pos, __n); } _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY size_type find_last_of(const _CharT* __s, size_type __pos=npos) const { _LIBCPP_ASSERT(__s != nullptr, "string_view::find_last_of(): received nullptr"); return __str_find_last_of<value_type, size_type, traits_type, npos> (data(), size(), __s, __pos, traits_type::length(__s)); } // find_first_not_of _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY size_type find_first_not_of(basic_string_view __s, size_type __pos=0) const _NOEXCEPT { _LIBCPP_ASSERT(__s.size() == 0 || __s.data() != nullptr, "string_view::find_first_not_of(): received nullptr"); return __str_find_first_not_of<value_type, size_type, traits_type, npos> (data(), size(), __s.data(), __pos, __s.size()); } _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY size_type find_first_not_of(_CharT __c, size_type __pos=0) const _NOEXCEPT { return __str_find_first_not_of<value_type, size_type, traits_type, npos> (data(), size(), __c, __pos); } _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY size_type find_first_not_of(const _CharT* __s, size_type __pos, size_type __n) const { _LIBCPP_ASSERT(__n == 0 || __s != nullptr, "string_view::find_first_not_of(): received nullptr"); return __str_find_first_not_of<value_type, size_type, traits_type, npos> (data(), size(), __s, __pos, __n); } _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY size_type find_first_not_of(const _CharT* __s, size_type __pos=0) const { _LIBCPP_ASSERT(__s != nullptr, "string_view::find_first_not_of(): received nullptr"); return __str_find_first_not_of<value_type, size_type, traits_type, npos> (data(), size(), __s, __pos, traits_type::length(__s)); } // find_last_not_of _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY size_type find_last_not_of(basic_string_view __s, size_type __pos=npos) const _NOEXCEPT { _LIBCPP_ASSERT(__s.size() == 0 || __s.data() != nullptr, "string_view::find_last_not_of(): received nullptr"); return __str_find_last_not_of<value_type, size_type, traits_type, npos> (data(), size(), __s.data(), __pos, __s.size()); } _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY size_type find_last_not_of(_CharT __c, size_type __pos=npos) const _NOEXCEPT { return __str_find_last_not_of<value_type, size_type, traits_type, npos> (data(), size(), __c, __pos); } _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY size_type find_last_not_of(const _CharT* __s, size_type __pos, size_type __n) const { _LIBCPP_ASSERT(__n == 0 || __s != nullptr, "string_view::find_last_not_of(): received nullptr"); return __str_find_last_not_of<value_type, size_type, traits_type, npos> (data(), size(), __s, __pos, __n); } _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY size_type find_last_not_of(const _CharT* __s, size_type __pos=npos) const { _LIBCPP_ASSERT(__s != nullptr, "string_view::find_last_not_of(): received nullptr"); return __str_find_last_not_of<value_type, size_type, traits_type, npos> (data(), size(), __s, __pos, traits_type::length(__s)); }private: const value_type* __data; size_type __size;};// [string.view.comparison]// operator ==template<class _CharT, class _Traits>_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITYbool operator==(basic_string_view<_CharT, _Traits> __lhs, basic_string_view<_CharT, _Traits> __rhs) _NOEXCEPT{ if ( __lhs.size() != __rhs.size()) return false; return __lhs.compare(__rhs) == 0;}template<class _CharT, class _Traits>_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITYbool operator==(basic_string_view<_CharT, _Traits> __lhs, typename common_type<basic_string_view<_CharT, _Traits> >::type __rhs) _NOEXCEPT{ if ( __lhs.size() != __rhs.size()) return false; return __lhs.compare(__rhs) == 0;}template<class _CharT, class _Traits>_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITYbool operator==(typename common_type<basic_string_view<_CharT, _Traits> >::type __lhs, basic_string_view<_CharT, _Traits> __rhs) _NOEXCEPT{ if ( __lhs.size() != __rhs.size()) return false; return __lhs.compare(__rhs) == 0;}// operator !=template<class _CharT, class _Traits>_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITYbool operator!=(basic_string_view<_CharT, _Traits> __lhs, basic_string_view<_CharT, _Traits> __rhs) _NOEXCEPT{ if ( __lhs.size() != __rhs.size()) return true; return __lhs.compare(__rhs) != 0;}template<class _CharT, class _Traits>_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITYbool operator!=(basic_string_view<_CharT, _Traits> __lhs, typename common_type<basic_string_view<_CharT, _Traits> >::type __rhs) _NOEXCEPT{ if ( __lhs.size() != __rhs.size()) return true; return __lhs.compare(__rhs) != 0;}template<class _CharT, class _Traits>_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITYbool operator!=(typename common_type<basic_string_view<_CharT, _Traits> >::type __lhs, basic_string_view<_CharT, _Traits> __rhs) _NOEXCEPT{ if ( __lhs.size() != __rhs.size()) return true; return __lhs.compare(__rhs) != 0;}// operator <template<class _CharT, class _Traits>_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITYbool operator<(basic_string_view<_CharT, _Traits> __lhs, basic_string_view<_CharT, _Traits> __rhs) _NOEXCEPT{ return __lhs.compare(__rhs) < 0;}template<class _CharT, class _Traits>_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITYbool operator<(basic_string_view<_CharT, _Traits> __lhs, typename common_type<basic_string_view<_CharT, _Traits> >::type __rhs) _NOEXCEPT{ return __lhs.compare(__rhs) < 0;}template<class _CharT, class _Traits>_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITYbool operator<(typename common_type<basic_string_view<_CharT, _Traits> >::type __lhs, basic_string_view<_CharT, _Traits> __rhs) _NOEXCEPT{ return __lhs.compare(__rhs) < 0;}// operator >template<class _CharT, class _Traits>_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITYbool operator> (basic_string_view<_CharT, _Traits> __lhs, basic_string_view<_CharT, _Traits> __rhs) _NOEXCEPT{ return __lhs.compare(__rhs) > 0;}template<class _CharT, class _Traits>_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITYbool operator>(basic_string_view<_CharT, _Traits> __lhs, typename common_type<basic_string_view<_CharT, _Traits> >::type __rhs) _NOEXCEPT{ return __lhs.compare(__rhs) > 0;}template<class _CharT, class _Traits>_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITYbool operator>(typename common_type<basic_string_view<_CharT, _Traits> >::type __lhs, basic_string_view<_CharT, _Traits> __rhs) _NOEXCEPT{ return __lhs.compare(__rhs) > 0;}// operator <=template<class _CharT, class _Traits>_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITYbool operator<=(basic_string_view<_CharT, _Traits> __lhs, basic_string_view<_CharT, _Traits> __rhs) _NOEXCEPT{ return __lhs.compare(__rhs) <= 0;}template<class _CharT, class _Traits>_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITYbool operator<=(basic_string_view<_CharT, _Traits> __lhs, typename common_type<basic_string_view<_CharT, _Traits> >::type __rhs) _NOEXCEPT{ return __lhs.compare(__rhs) <= 0;}template<class _CharT, class _Traits>_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITYbool operator<=(typename common_type<basic_string_view<_CharT, _Traits> >::type __lhs, basic_string_view<_CharT, _Traits> __rhs) _NOEXCEPT{ return __lhs.compare(__rhs) <= 0;}// operator >=template<class _CharT, class _Traits>_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITYbool operator>=(basic_string_view<_CharT, _Traits> __lhs, basic_string_view<_CharT, _Traits> __rhs) _NOEXCEPT{ return __lhs.compare(__rhs) >= 0;}template<class _CharT, class _Traits>_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITYbool operator>=(basic_string_view<_CharT, _Traits> __lhs, typename common_type<basic_string_view<_CharT, _Traits> >::type __rhs) _NOEXCEPT{ return __lhs.compare(__rhs) >= 0;}template<class _CharT, class _Traits>_LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITYbool operator>=(typename common_type<basic_string_view<_CharT, _Traits> >::type __lhs, basic_string_view<_CharT, _Traits> __rhs) _NOEXCEPT{ return __lhs.compare(__rhs) >= 0;}typedef basic_string_view<char> string_view;typedef basic_string_view<char16_t> u16string_view;typedef basic_string_view<char32_t> u32string_view;typedef basic_string_view<wchar_t> wstring_view;// [string.view.hash]template<class _CharT, class _Traits>struct _LIBCPP_TEMPLATE_VIS hash<basic_string_view<_CharT, _Traits> > : public unary_function<basic_string_view<_CharT, _Traits>, size_t>{ size_t operator()(const basic_string_view<_CharT, _Traits> __val) const _NOEXCEPT;};template<class _CharT, class _Traits>size_thash<basic_string_view<_CharT, _Traits> >::operator()( const basic_string_view<_CharT, _Traits> __val) const _NOEXCEPT{ return __do_string_hash(__val.data(), __val.data() + __val.size());}#if _LIBCPP_STD_VER > 11 inline namespace literals{ inline namespace string_view_literals { inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR basic_string_view<char> operator "" sv(const char *__str, size_t __len) { return basic_string_view<char> (__str, __len); } inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR basic_string_view<wchar_t> operator "" sv(const wchar_t *__str, size_t __len) { return basic_string_view<wchar_t> (__str, __len); } inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR basic_string_view<char16_t> operator "" sv(const char16_t *__str, size_t __len) { return basic_string_view<char16_t> (__str, __len); } inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR basic_string_view<char32_t> operator "" sv(const char32_t *__str, size_t __len) { return basic_string_view<char32_t> (__str, __len); } }}#endif_LIBCPP_END_NAMESPACE_STD_LIBCPP_POP_MACROS#endif // _LIBCPP_STRING_VIEW