diff options
Diffstat (limited to 'libcxx/include/string')
| -rw-r--r-- | libcxx/include/string | 403 |
1 files changed, 227 insertions, 176 deletions
diff --git a/libcxx/include/string b/libcxx/include/string index 7439b5615bb..761ff523bee 100644 --- a/libcxx/include/string +++ b/libcxx/include/string @@ -447,7 +447,7 @@ basic_string<char32_t> operator "" s( const char32_t *str, size_t len ); // C++1 #ifndef _LIBCPP_HAS_NO_UNICODE_CHARS #include <cstdint> #endif -#if defined(_LIBCPP_NO_EXCEPTIONS) || defined(_LIBCPP_DEBUG) +#if defined(_LIBCPP_NO_EXCEPTIONS) #include <cassert> #endif @@ -605,6 +605,7 @@ inline _LIBCPP_INLINE_VISIBILITY _CharT* char_traits<_CharT>::copy(char_type* __s1, const char_type* __s2, size_t __n) { + _LIBCPP_ASSERT(__s2 < __s1 || __s2 >= __s1+__n, "char_traits::copy overlapped range"); char_type* __r = __s1; for (; __n; --__n, ++__s1, ++__s2) assign(*__s1, *__s2); @@ -656,7 +657,10 @@ struct _LIBCPP_TYPE_VIS_ONLY char_traits<char> {return (char_type*)memmove(__s1, __s2, __n);} _LIBCPP_INLINE_VISIBILITY static char_type* copy(char_type* __s1, const char_type* __s2, size_t __n) - {return (char_type*)memcpy(__s1, __s2, __n);} + { + _LIBCPP_ASSERT(__s2 < __s1 || __s2 >= __s1+__n, "char_traits::copy overlapped range"); + return (char_type*)memcpy(__s1, __s2, __n); + } _LIBCPP_INLINE_VISIBILITY static char_type* assign(char_type* __s, size_t __n, char_type __a) {return (char_type*)memset(__s, to_int_type(__a), __n);} @@ -713,7 +717,10 @@ struct _LIBCPP_TYPE_VIS_ONLY char_traits<wchar_t> {return (char_type*)wmemmove(__s1, __s2, __n);} _LIBCPP_INLINE_VISIBILITY static char_type* copy(char_type* __s1, const char_type* __s2, size_t __n) - {return (char_type*)wmemcpy(__s1, __s2, __n);} + { + _LIBCPP_ASSERT(__s2 < __s1 || __s2 >= __s1+__n, "char_traits::copy overlapped range"); + return (char_type*)wmemcpy(__s1, __s2, __n); + } _LIBCPP_INLINE_VISIBILITY static char_type* assign(char_type* __s, size_t __n, char_type __a) {return (char_type*)wmemset(__s, __a, __n);} @@ -841,6 +848,7 @@ inline _LIBCPP_INLINE_VISIBILITY char16_t* char_traits<char16_t>::copy(char_type* __s1, const char_type* __s2, size_t __n) { + _LIBCPP_ASSERT(__s2 < __s1 || __s2 >= __s1+__n, "char_traits::copy overlapped range"); char_type* __r = __s1; for (; __n; --__n, ++__s1, ++__s2) assign(*__s1, *__s2); @@ -961,6 +969,7 @@ inline _LIBCPP_INLINE_VISIBILITY char32_t* char_traits<char32_t>::copy(char_type* __s1, const char_type* __s2, size_t __n) { + _LIBCPP_ASSERT(__s2 < __s1 || __s2 >= __s1+__n, "char_traits::copy overlapped range"); char_type* __r = __s1; for (; __n; --__n, ++__s1, ++__s2) assign(*__s1, *__s2); @@ -1072,13 +1081,13 @@ public: typedef const value_type& const_reference; typedef typename __alloc_traits::pointer pointer; typedef typename __alloc_traits::const_pointer const_pointer; -#ifdef _LIBCPP_DEBUG - typedef __debug_iter<basic_string, pointer> iterator; - typedef __debug_iter<basic_string, const_pointer> const_iterator; - friend class __debug_iter<basic_string, pointer>; - friend class __debug_iter<basic_string, const_pointer>; -#elif defined(_LIBCPP_RAW_ITERATORS) + static_assert(is_pod<value_type>::value, "Character type of basic_string must be a POD"); + static_assert((is_same<_CharT, value_type>::value), + "traits_type::char_type must be the same type as CharT"); + static_assert((is_same<typename allocator_type::value_type, value_type>::value), + "Allocator::value_type must be same type as value_type"); +#if defined(_LIBCPP_RAW_ITERATORS) typedef pointer iterator; typedef const_pointer const_iterator; #else // defined(_LIBCPP_RAW_ITERATORS) @@ -1152,9 +1161,9 @@ private: #endif // _LIBCPP_ALTERNATE_STRING_LAYOUT - union __lx{__long __lx; __short __lxx;}; + union __ulx{__long __lx; __short __lxx;}; - enum {__n_words = sizeof(__lx) / sizeof(size_type)}; + enum {__n_words = sizeof(__ulx) / sizeof(size_type)}; struct __raw { @@ -1173,15 +1182,6 @@ private: __compressed_pair<__rep, allocator_type> __r_; -#ifdef _LIBCPP_DEBUG - - pair<iterator*, const_iterator*> __iterator_list_; - - _LIBCPP_INLINE_VISIBILITY iterator*& __get_iterator_list(iterator*) {return __iterator_list_.first;} - _LIBCPP_INLINE_VISIBILITY const_iterator*& __get_iterator_list(const_iterator*) {return __iterator_list_.second;} - -#endif // _LIBCPP_DEBUG - public: static const size_type npos = -1; @@ -1239,7 +1239,20 @@ public: basic_string& operator=(initializer_list<value_type> __il) {return assign(__il.begin(), __il.size());} #endif // _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS -#ifndef _LIBCPP_DEBUG +#if _LIBCPP_DEBUG_LEVEL >= 2 + _LIBCPP_INLINE_VISIBILITY + iterator begin() _NOEXCEPT + {return iterator(this, __get_pointer());} + _LIBCPP_INLINE_VISIBILITY + const_iterator begin() const _NOEXCEPT + {return const_iterator(this, __get_pointer());} + _LIBCPP_INLINE_VISIBILITY + iterator end() _NOEXCEPT + {return iterator(this, __get_pointer() + size());} + _LIBCPP_INLINE_VISIBILITY + const_iterator end() const _NOEXCEPT + {return const_iterator(this, __get_pointer() + size());} +#else _LIBCPP_INLINE_VISIBILITY iterator begin() _NOEXCEPT {return iterator(__get_pointer());} @@ -1252,12 +1265,7 @@ public: _LIBCPP_INLINE_VISIBILITY const_iterator end() const _NOEXCEPT {return const_iterator(__get_pointer() + size());} -#else // _LIBCPP_DEBUG - _LIBCPP_INLINE_VISIBILITY iterator begin() {return iterator(this, __get_pointer());} - _LIBCPP_INLINE_VISIBILITY const_iterator begin() const {return const_iterator(this, data());} - _LIBCPP_INLINE_VISIBILITY iterator end() {return iterator(this, __get_pointer() + size());} - _LIBCPP_INLINE_VISIBILITY const_iterator end() const {return const_iterator(this, data() + size());} -#endif // _LIBCPP_DEBUG +#endif // _LIBCPP_DEBUG_LEVEL >= 2 _LIBCPP_INLINE_VISIBILITY reverse_iterator rbegin() _NOEXCEPT {return reverse_iterator(end());} @@ -1520,6 +1528,15 @@ public: bool __is_long() const _NOEXCEPT {return bool(__r_.first().__s.__size_ & __short_mask);} +#if _LIBCPP_DEBUG_LEVEL >= 2 + + bool __dereferenceable(const const_iterator* __i) const; + bool __decrementable(const const_iterator* __i) const; + bool __addable(const const_iterator* __i, ptrdiff_t __n) const; + bool __subscriptable(const const_iterator* __i, ptrdiff_t __n) const; + +#endif // _LIBCPP_DEBUG_LEVEL >= 2 + private: _LIBCPP_INLINE_VISIBILITY allocator_type& __alloc() _NOEXCEPT @@ -1732,60 +1749,43 @@ private: }; template <class _CharT, class _Traits, class _Allocator> -#ifndef _LIBCPP_DEBUG _LIBCPP_INLINE_VISIBILITY inline -#endif void basic_string<_CharT, _Traits, _Allocator>::__invalidate_all_iterators() { -#ifdef _LIBCPP_DEBUG - iterator::__remove_all(this); - const_iterator::__remove_all(this); -#endif // _LIBCPP_DEBUG +#if _LIBCPP_DEBUG_LEVEL >= 2 + __get_db()->__invalidate_all(this); +#endif // _LIBCPP_DEBUG_LEVEL >= 2 } template <class _CharT, class _Traits, class _Allocator> -#ifndef _LIBCPP_DEBUG _LIBCPP_INLINE_VISIBILITY inline -#endif void basic_string<_CharT, _Traits, _Allocator>::__invalidate_iterators_past(size_type -#ifdef _LIBCPP_DEBUG +#if _LIBCPP_DEBUG_LEVEL >= 2 __pos #endif ) { -#ifdef _LIBCPP_DEBUG - const_iterator __beg = begin(); - if (__iterator_list_.first) - { - for (iterator* __p = __iterator_list_.first; __p;) - { - if (*__p - __beg > static_cast<difference_type>(__pos)) - { - iterator* __n = __p; - __p = __p->__next; - __n->__remove_owner(); - } - else - __p = __p->__next; - } - } - if (__iterator_list_.second) +#if _LIBCPP_DEBUG_LEVEL >= 2 + __c_node* __c = __get_db()->__find_c_and_lock(this); + if (__c) { - for (const_iterator* __p = __iterator_list_.second; __p;) + const_pointer __new_last = __get_pointer() + __pos; + for (__i_node** __p = __c->end_; __p != __c->beg_; ) { - if (*__p - __beg > static_cast<difference_type>(__pos)) + --__p; + const_iterator* __i = static_cast<const_iterator*>((*__p)->__i_); + if (__i->base() > __new_last) { - const_iterator* __n = __p; - __p = __p->__next; - __n->__remove_owner(); + (*__p)->__c_ = nullptr; + if (--__c->end_ != __p) + memmove(__p, __p+1, (__c->end_ - __p)*sizeof(__i_node*)); } - else - __p = __p->__next; } + __get_db()->unlock(); } -#endif // _LIBCPP_DEBUG +#endif // _LIBCPP_DEBUG_LEVEL >= 2 } template <class _CharT, class _Traits, class _Allocator> @@ -1793,6 +1793,9 @@ _LIBCPP_INLINE_VISIBILITY inline basic_string<_CharT, _Traits, _Allocator>::basic_string() _NOEXCEPT_(is_nothrow_default_constructible<allocator_type>::value) { +#if _LIBCPP_DEBUG_LEVEL >= 2 + __get_db()->__insert_c(this); +#endif __zero(); } @@ -1801,6 +1804,9 @@ _LIBCPP_INLINE_VISIBILITY inline basic_string<_CharT, _Traits, _Allocator>::basic_string(const allocator_type& __a) : __r_(__a) { +#if _LIBCPP_DEBUG_LEVEL >= 2 + __get_db()->__insert_c(this); +#endif __zero(); } @@ -1856,10 +1862,11 @@ template <class _CharT, class _Traits, class _Allocator> _LIBCPP_INLINE_VISIBILITY inline basic_string<_CharT, _Traits, _Allocator>::basic_string(const value_type* __s) { -#ifdef _LIBCPP_DEBUG - assert(__s != 0); -#endif + _LIBCPP_ASSERT(__s != nullptr, "basic_string(const char*) detected nullptr"); __init(__s, traits_type::length(__s)); +#if _LIBCPP_DEBUG_LEVEL >= 2 + __get_db()->__insert_c(this); +#endif } template <class _CharT, class _Traits, class _Allocator> @@ -1867,20 +1874,22 @@ _LIBCPP_INLINE_VISIBILITY inline basic_string<_CharT, _Traits, _Allocator>::basic_string(const value_type* __s, const allocator_type& __a) : __r_(__a) { -#ifdef _LIBCPP_DEBUG - assert(__s != 0); -#endif + _LIBCPP_ASSERT(__s != nullptr, "basic_string(const char*, allocator) detected nullptr"); __init(__s, traits_type::length(__s)); +#if _LIBCPP_DEBUG_LEVEL >= 2 + __get_db()->__insert_c(this); +#endif } template <class _CharT, class _Traits, class _Allocator> _LIBCPP_INLINE_VISIBILITY inline basic_string<_CharT, _Traits, _Allocator>::basic_string(const value_type* __s, size_type __n) { -#ifdef _LIBCPP_DEBUG - assert(__s != 0); -#endif + _LIBCPP_ASSERT(__n == 0 || __s != nullptr, "basic_string(const char*, n) detected nullptr"); __init(__s, __n); +#if _LIBCPP_DEBUG_LEVEL >= 2 + __get_db()->__insert_c(this); +#endif } template <class _CharT, class _Traits, class _Allocator> @@ -1888,10 +1897,11 @@ _LIBCPP_INLINE_VISIBILITY inline basic_string<_CharT, _Traits, _Allocator>::basic_string(const value_type* __s, size_type __n, const allocator_type& __a) : __r_(__a) { -#ifdef _LIBCPP_DEBUG - assert(__s != 0); -#endif + _LIBCPP_ASSERT(__n == 0 || __s != nullptr, "basic_string(const char*, n, allocator) detected nullptr"); __init(__s, __n); +#if _LIBCPP_DEBUG_LEVEL >= 2 + __get_db()->__insert_c(this); +#endif } template <class _CharT, class _Traits, class _Allocator> @@ -1902,6 +1912,9 @@ basic_string<_CharT, _Traits, _Allocator>::basic_string(const basic_string& __st __r_.first().__r = __str.__r_.first().__r; else __init(_VSTD::__to_raw_pointer(__str.__get_long_pointer()), __str.__get_long_size()); +#if _LIBCPP_DEBUG_LEVEL >= 2 + __get_db()->__insert_c(this); +#endif } template <class _CharT, class _Traits, class _Allocator> @@ -1912,6 +1925,9 @@ basic_string<_CharT, _Traits, _Allocator>::basic_string(const basic_string& __st __r_.first().__r = __str.__r_.first().__r; else __init(_VSTD::__to_raw_pointer(__str.__get_long_pointer()), __str.__get_long_size()); +#if _LIBCPP_DEBUG_LEVEL >= 2 + __get_db()->__insert_c(this); +#endif } #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES @@ -1923,8 +1939,10 @@ basic_string<_CharT, _Traits, _Allocator>::basic_string(basic_string&& __str) : __r_(_VSTD::move(__str.__r_)) { __str.__zero(); -#ifdef _LIBCPP_DEBUG - __str.__invalidate_all_iterators(); +#if _LIBCPP_DEBUG_LEVEL >= 2 + __get_db()->__insert_c(this); + if (__is_long()) + __get_db()->swap(this, &__str); #endif } @@ -1938,8 +1956,10 @@ basic_string<_CharT, _Traits, _Allocator>::basic_string(basic_string&& __str, co else __init(_VSTD::__to_raw_pointer(__str.__get_long_pointer()), __str.__get_long_size()); __str.__zero(); -#ifdef _LIBCPP_DEBUG - __str.__invalidate_all_iterators(); +#if _LIBCPP_DEBUG_LEVEL >= 2 + __get_db()->__insert_c(this); + if (__is_long()) + __get_db()->swap(this, &__str); #endif } @@ -1974,6 +1994,9 @@ _LIBCPP_INLINE_VISIBILITY inline basic_string<_CharT, _Traits, _Allocator>::basic_string(size_type __n, value_type __c) { __init(__n, __c); +#if _LIBCPP_DEBUG_LEVEL >= 2 + __get_db()->__insert_c(this); +#endif } template <class _CharT, class _Traits, class _Allocator> @@ -1982,6 +2005,9 @@ basic_string<_CharT, _Traits, _Allocator>::basic_string(size_type __n, value_typ : __r_(__a) { __init(__n, __c); +#if _LIBCPP_DEBUG_LEVEL >= 2 + __get_db()->__insert_c(this); +#endif } template <class _CharT, class _Traits, class _Allocator> @@ -1993,6 +2019,9 @@ basic_string<_CharT, _Traits, _Allocator>::basic_string(const basic_string& __st if (__pos > __str_sz) this->__throw_out_of_range(); __init(__str.data() + __pos, _VSTD::min(__n, __str_sz - __pos)); +#if _LIBCPP_DEBUG_LEVEL >= 2 + __get_db()->__insert_c(this); +#endif } template <class _CharT, class _Traits, class _Allocator> @@ -2060,6 +2089,9 @@ _LIBCPP_INLINE_VISIBILITY inline basic_string<_CharT, _Traits, _Allocator>::basic_string(_InputIterator __first, _InputIterator __last) { __init(__first, __last); +#if _LIBCPP_DEBUG_LEVEL >= 2 + __get_db()->__insert_c(this); +#endif } template <class _CharT, class _Traits, class _Allocator> @@ -2070,6 +2102,9 @@ basic_string<_CharT, _Traits, _Allocator>::basic_string(_InputIterator __first, : __r_(__a) { __init(__first, __last); +#if _LIBCPP_DEBUG_LEVEL >= 2 + __get_db()->__insert_c(this); +#endif } #ifndef _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS @@ -2079,6 +2114,9 @@ _LIBCPP_INLINE_VISIBILITY inline basic_string<_CharT, _Traits, _Allocator>::basic_string(initializer_list<value_type> __il) { __init(__il.begin(), __il.end()); +#if _LIBCPP_DEBUG_LEVEL >= 2 + __get_db()->__insert_c(this); +#endif } template <class _CharT, class _Traits, class _Allocator> @@ -2087,6 +2125,9 @@ basic_string<_CharT, _Traits, _Allocator>::basic_string(initializer_list<value_t : __r_(__a) { __init(__il.begin(), __il.end()); +#if _LIBCPP_DEBUG_LEVEL >= 2 + __get_db()->__insert_c(this); +#endif } #endif // _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS @@ -2094,7 +2135,9 @@ basic_string<_CharT, _Traits, _Allocator>::basic_string(initializer_list<value_t template <class _CharT, class _Traits, class _Allocator> basic_string<_CharT, _Traits, _Allocator>::~basic_string() { - __invalidate_all_iterators(); +#if _LIBCPP_DEBUG_LEVEL >= 2 + __get_db()->__erase_c(this); +#endif if (__is_long()) __alloc_traits::deallocate(__alloc(), __get_long_pointer(), __get_long_cap()); } @@ -2166,9 +2209,7 @@ template <class _CharT, class _Traits, class _Allocator> basic_string<_CharT, _Traits, _Allocator>& basic_string<_CharT, _Traits, _Allocator>::assign(const value_type* __s, size_type __n) { -#ifdef _LIBCPP_DEBUG - assert(__s != 0); -#endif + _LIBCPP_ASSERT(__n == 0 || __s != nullptr, "string::assign recieved nullptr"); size_type __cap = capacity(); if (__cap >= __n) { @@ -2342,9 +2383,7 @@ template <class _CharT, class _Traits, class _Allocator> basic_string<_CharT, _Traits, _Allocator>& basic_string<_CharT, _Traits, _Allocator>::assign(const value_type* __s) { -#ifdef _LIBCPP_DEBUG - assert(__s != 0); -#endif + _LIBCPP_ASSERT(__s != nullptr, "string::assign recieved nullptr"); return assign(__s, traits_type::length(__s)); } @@ -2354,9 +2393,7 @@ template <class _CharT, class _Traits, class _Allocator> basic_string<_CharT, _Traits, _Allocator>& basic_string<_CharT, _Traits, _Allocator>::append(const value_type* __s, size_type __n) { -#ifdef _LIBCPP_DEBUG - assert(__s != 0); -#endif + _LIBCPP_ASSERT(__n == 0 || __s != nullptr, "string::append recieved nullptr"); size_type __cap = capacity(); size_type __sz = size(); if (__cap - __sz >= __n) @@ -2493,9 +2530,7 @@ template <class _CharT, class _Traits, class _Allocator> basic_string<_CharT, _Traits, _Allocator>& basic_string<_CharT, _Traits, _Allocator>::append(const value_type* __s) { -#ifdef _LIBCPP_DEBUG - assert(__s != 0); -#endif + _LIBCPP_ASSERT(__s != nullptr, "string::append recieved nullptr"); return append(__s, traits_type::length(__s)); } @@ -2505,9 +2540,7 @@ template <class _CharT, class _Traits, class _Allocator> basic_string<_CharT, _Traits, _Allocator>& basic_string<_CharT, _Traits, _Allocator>::insert(size_type __pos, const value_type* __s, size_type __n) { -#ifdef _LIBCPP_DEBUG - assert(__s != 0); -#endif + _LIBCPP_ASSERT(__n == 0 || __s != nullptr, "string::insert recieved nullptr"); size_type __sz = size(); if (__pos > __sz) this->__throw_out_of_range(); @@ -2576,13 +2609,22 @@ typename enable_if >::type basic_string<_CharT, _Traits, _Allocator>::insert(const_iterator __pos, _InputIterator __first, _InputIterator __last) { +#if _LIBCPP_DEBUG_LEVEL >= 2 + _LIBCPP_ASSERT(__get_const_db()->__find_c_from_i(&__pos) == this, + "string::insert(iterator, range) called with an iterator not" + " referring to this string"); +#endif size_type __old_sz = size(); difference_type __ip = __pos - begin(); for (; __first != __last; ++__first) push_back(*__first); pointer __p = __get_pointer(); _VSTD::rotate(__p + __ip, __p + __old_sz, __p + size()); +#if _LIBCPP_DEBUG_LEVEL >= 2 + return iterator(this, __p + __ip); +#else return iterator(__p + __ip); +#endif } template <class _CharT, class _Traits, class _Allocator> @@ -2594,6 +2636,11 @@ typename enable_if >::type basic_string<_CharT, _Traits, _Allocator>::insert(const_iterator __pos, _ForwardIterator __first, _ForwardIterator __last) { +#if _LIBCPP_DEBUG_LEVEL >= 2 + _LIBCPP_ASSERT(__get_const_db()->__find_c_from_i(&__pos) == this, + "string::insert(iterator, range) called with an iterator not" + " referring to this string"); +#endif size_type __ip = static_cast<size_type>(__pos - begin()); size_type __sz = size(); size_type __cap = capacity(); @@ -2645,9 +2692,7 @@ template <class _CharT, class _Traits, class _Allocator> basic_string<_CharT, _Traits, _Allocator>& basic_string<_CharT, _Traits, _Allocator>::insert(size_type __pos, const value_type* __s) { -#ifdef _LIBCPP_DEBUG - assert(__s != 0); -#endif + _LIBCPP_ASSERT(__s != nullptr, "string::insert recieved nullptr"); return insert(__pos, __s, traits_type::length(__s)); } @@ -2682,6 +2727,11 @@ _LIBCPP_INLINE_VISIBILITY inline typename basic_string<_CharT, _Traits, _Allocator>::iterator basic_string<_CharT, _Traits, _Allocator>::insert(const_iterator __pos, size_type __n, value_type __c) { +#if _LIBCPP_DEBUG_LEVEL >= 2 + _LIBCPP_ASSERT(__get_const_db()->__find_c_from_i(&__pos) == this, + "string::insert(iterator, n, value) called with an iterator not" + " referring to this string"); +#endif difference_type __p = __pos - begin(); insert(static_cast<size_type>(__p), __n, __c); return begin() + __p; @@ -2693,9 +2743,7 @@ template <class _CharT, class _Traits, class _Allocator> basic_string<_CharT, _Traits, _Allocator>& basic_string<_CharT, _Traits, _Allocator>::replace(size_type __pos, size_type __n1, const value_type* __s, size_type __n2) { -#ifdef _LIBCPP_DEBUG - assert(__s != 0); -#endif + _LIBCPP_ASSERT(__n2 == 0 || __s != nullptr, "string::replace recieved nullptr"); size_type __sz = size(); if (__pos > __sz) this->__throw_out_of_range(); @@ -2827,9 +2875,7 @@ template <class _CharT, class _Traits, class _Allocator> basic_string<_CharT, _Traits, _Allocator>& basic_string<_CharT, _Traits, _Allocator>::replace(size_type __pos, size_type __n1, const value_type* __s) { -#ifdef _LIBCPP_DEBUG - assert(__s != 0); -#endif + _LIBCPP_ASSERT(__s != nullptr, "string::replace recieved nullptr"); return replace(__pos, __n1, __s, traits_type::length(__s)); } @@ -2895,6 +2941,13 @@ _LIBCPP_INLINE_VISIBILITY inline typename basic_string<_CharT, _Traits, _Allocator>::iterator basic_string<_CharT, _Traits, _Allocator>::erase(const_iterator __pos) { +#if _LIBCPP_DEBUG_LEVEL >= 2 + _LIBCPP_ASSERT(__get_const_db()->__find_c_from_i(&__pos) == this, + "string::erase(iterator) called with an iterator not" + " referring to this string"); +#endif + _LIBCPP_ASSERT(__pos != end(), + "string::erase(iterator) called with a non-dereferenceable iterator"); iterator __b = begin(); size_type __r = static_cast<size_type>(__pos - __b); erase(__r, 1); @@ -2906,6 +2959,12 @@ _LIBCPP_INLINE_VISIBILITY inline typename basic_string<_CharT, _Traits, _Allocator>::iterator basic_string<_CharT, _Traits, _Allocator>::erase(const_iterator __first, const_iterator __last) { +#if _LIBCPP_DEBUG_LEVEL >= 2 + _LIBCPP_ASSERT(__get_const_db()->__find_c_from_i(&__first) == this, + "string::erase(iterator, iterator) called with an iterator not" + " referring to this string"); +#endif + _LIBCPP_ASSERT(__first <= __last, "string::erase(first, last) called with invalid range"); iterator __b = begin(); size_type __r = static_cast<size_type>(__first - __b); erase(__r, static_cast<size_type>(__last - __first)); @@ -2917,9 +2976,7 @@ _LIBCPP_INLINE_VISIBILITY inline void basic_string<_CharT, _Traits, _Allocator>::pop_back() { -#ifdef _LIBCPP_DEBUG - assert(!empty()); -#endif + _LIBCPP_ASSERT(!empty(), "string::pop_back(): string is already empty"); size_type __sz; if (__is_long()) { @@ -3064,9 +3121,7 @@ _LIBCPP_INLINE_VISIBILITY inline typename basic_string<_CharT, _Traits, _Allocator>::const_reference basic_string<_CharT, _Traits, _Allocator>::operator[](size_type __pos) const { -#ifdef __LIBCPP_DEBUG - assert(__pos <= size()); -#endif + _LIBCPP_ASSERT(__pos <= size(), "string index out of bounds"); return *(data() + __pos); } @@ -3075,9 +3130,7 @@ _LIBCPP_INLINE_VISIBILITY inline typename basic_string<_CharT, _Traits, _Allocator>::reference basic_string<_CharT, _Traits, _Allocator>::operator[](size_type __pos) { -#ifdef __LIBCPP_DEBUG - assert(__pos < size()); -#endif + _LIBCPP_ASSERT(__pos <= size(), "string index out of bounds"); return *(__get_pointer() + __pos); } @@ -3104,9 +3157,7 @@ _LIBCPP_INLINE_VISIBILITY inline typename basic_string<_CharT, _Traits, _Allocator>::reference basic_string<_CharT, _Traits, _Allocator>::front() { -#ifdef _LIBCPP_DEBUG - assert(!empty()); -#endif + _LIBCPP_ASSERT(!empty(), "string::front(): string is empty"); return *__get_pointer(); } @@ -3115,9 +3166,7 @@ _LIBCPP_INLINE_VISIBILITY inline typename basic_string<_CharT, _Traits, _Allocator>::const_reference basic_string<_CharT, _Traits, _Allocator>::front() const { -#ifdef _LIBCPP_DEBUG - assert(!empty()); -#endif + _LIBCPP_ASSERT(!empty(), "string::front(): string is empty"); return *data(); } @@ -3126,9 +3175,7 @@ _LIBCPP_INLINE_VISIBILITY inline typename basic_string<_CharT, _Traits, _Allocator>::reference basic_string<_CharT, _Traits, _Allocator>::back() { -#ifdef _LIBCPP_DEBUG - assert(!empty()); -#endif + _LIBCPP_ASSERT(!empty(), "string::back(): string is empty"); return *(__get_pointer() + size() - 1); } @@ -3137,9 +3184,7 @@ _LIBCPP_INLINE_VISIBILITY inline typename basic_string<_CharT, _Traits, _Allocator>::const_reference basic_string<_CharT, _Traits, _Allocator>::back() const { -#ifdef _LIBCPP_DEBUG - assert(!empty()); -#endif + _LIBCPP_ASSERT(!empty(), "string::back(): string is empty"); return *(data() + size() - 1); } @@ -3170,12 +3215,15 @@ basic_string<_CharT, _Traits, _Allocator>::swap(basic_string& __str) _NOEXCEPT_(!__alloc_traits::propagate_on_container_swap::value || __is_nothrow_swappable<allocator_type>::value) { +#if _LIBCPP_DEBUG_LEVEL >= 2 + if (!__is_long()) + __get_db()->__invalidate_all(this); + if (!__str.__is_long()) + __get_db()->__invalidate_all(&__str); + __get_db()->swap(this, &__str); +#endif _VSTD::swap(__r_.first(), __str.__r_.first()); __swap_alloc(__alloc(), __str.__alloc()); -#ifdef _LIBCPP_DEBUG - __invalidate_all_iterators(); - __str.__invalidate_all_iterators(); -#endif // _LIBCPP_DEBUG } // find @@ -3195,9 +3243,7 @@ basic_string<_CharT, _Traits, _Allocator>::find(const value_type* __s, size_type __pos, size_type __n) const _NOEXCEPT { -#ifdef _LIBCPP_DEBUG - assert(__s != 0); -#endif + _LIBCPP_ASSERT(__n == 0 || __s != nullptr, "string::find(): recieved nullptr"); size_type __sz = size(); if (__pos > __sz || __sz - __pos < __n) return npos; @@ -3226,9 +3272,7 @@ typename basic_string<_CharT, _Traits, _Allocator>::size_type basic_string<_CharT, _Traits, _Allocator>::find(const value_type* __s, size_type __pos) const _NOEXCEPT { -#ifdef _LIBCPP_DEBUG - assert(__s != 0); -#endif + _LIBCPP_ASSERT(__s != nullptr, "string::find(): recieved nullptr"); return find(__s, __pos, traits_type::length(__s)); } @@ -3255,9 +3299,7 @@ basic_string<_CharT, _Traits, _Allocator>::rfind(const value_type* __s, size_type __pos, size_type __n) const _NOEXCEPT { -#ifdef _LIBCPP_DEBUG - assert(__s != 0); -#endif + _LIBCPP_ASSERT(__n == 0 || __s != nullptr, "string::rfind(): recieved nullptr"); size_type __sz = size(); __pos = _VSTD::min(__pos, __sz); if (__n < __sz - __pos) @@ -3287,9 +3329,7 @@ typename basic_string<_CharT, _Traits, _Allocator>::size_type basic_string<_CharT, _Traits, _Allocator>::rfind(const value_type* __s, size_type __pos) const _NOEXCEPT { -#ifdef _LIBCPP_DEBUG - assert(__s != 0); -#endif + _LIBCPP_ASSERT(__s != nullptr, "string::rfind(): recieved nullptr"); return rfind(__s, __pos, traits_type::length(__s)); } @@ -3323,9 +3363,7 @@ basic_string<_CharT, _Traits, _Allocator>::find_first_of(const value_type* __s, size_type __pos, size_type __n) const _NOEXCEPT { -#ifdef _LIBCPP_DEBUG - assert(__s != 0); -#endif + _LIBCPP_ASSERT(__n == 0 || __s != nullptr, "string::find_first_of(): recieved nullptr"); size_type __sz = size(); if (__pos >= __sz || __n == 0) return npos; @@ -3352,9 +3390,7 @@ typename basic_string<_CharT, _Traits, _Allocator>::size_type basic_string<_CharT, _Traits, _Allocator>::find_first_of(const value_type* __s, size_type __pos) const _NOEXCEPT { -#ifdef _LIBCPP_DEBUG - assert(__s != 0); -#endif + _LIBCPP_ASSERT(__s != nullptr, "string::find_first_of(): recieved nullptr"); return find_first_of(__s, __pos, traits_type::length(__s)); } @@ -3375,9 +3411,7 @@ basic_string<_CharT, _Traits, _Allocator>::find_last_of(const value_type* __s, size_type __pos, size_type __n) const _NOEXCEPT { -#ifdef _LIBCPP_DEBUG - assert(__s != 0); -#endif + _LIBCPP_ASSERT(__n == 0 || __s != nullptr, "string::find_last_of(): recieved nullptr"); if (__n != 0) { size_type __sz = size(); @@ -3411,9 +3445,7 @@ typename basic_string<_CharT, _Traits, _Allocator>::size_type basic_string<_CharT, _Traits, _Allocator>::find_last_of(const value_type* __s, size_type __pos) const _NOEXCEPT { -#ifdef _LIBCPP_DEBUG - assert(__s != 0); -#endif + _LIBCPP_ASSERT(__s != nullptr, "string::find_last_of(): recieved nullptr"); return find_last_of(__s, __pos, traits_type::length(__s)); } @@ -3434,9 +3466,7 @@ basic_string<_CharT, _Traits, _Allocator>::find_first_not_of(const value_type* _ size_type __pos, size_type __n) const _NOEXCEPT { -#ifdef _LIBCPP_DEBUG - assert(__s != 0); -#endif + _LIBCPP_ASSERT(__n == 0 || __s != nullptr, "string::find_first_not_of(): recieved nullptr"); size_type __sz = size(); if (__pos < __sz) { @@ -3464,9 +3494,7 @@ typename basic_string<_CharT, _Traits, _Allocator>::size_type basic_string<_CharT, _Traits, _Allocator>::find_first_not_of(const value_type* __s, size_type __pos) const _NOEXCEPT { -#ifdef _LIBCPP_DEBUG - assert(__s != 0); -#endif + _LIBCPP_ASSERT(__s != nullptr, "string::find_first_not_of(): recieved nullptr"); return find_first_not_of(__s, __pos, traits_type::length(__s)); } @@ -3496,9 +3524,7 @@ basic_string<_CharT, _Traits, _Allocator>::find_last_not_of(const value_type* __ size_type __pos, size_type __n) const _NOEXCEPT { -#ifdef _LIBCPP_DEBUG - assert(__s != 0); -#endif + _LIBCPP_ASSERT(__n == 0 || __s != nullptr, "string::find_last_not_of(): recieved nullptr"); size_type __sz = size(); if (__pos < __sz) ++__pos; @@ -3526,9 +3552,7 @@ typename basic_string<_CharT, _Traits, _Allocator>::size_type basic_string<_CharT, _Traits, _Allocator>::find_last_not_of(const value_type* __s, size_type __pos) const _NOEXCEPT { -#ifdef _LIBCPP_DEBUG - assert(__s != 0); -#endif + _LIBCPP_ASSERT(__s != nullptr, "string::find_last_not_of(): recieved nullptr"); return find_last_not_of(__s, __pos, traits_type::length(__s)); } @@ -3599,9 +3623,7 @@ template <class _CharT, class _Traits, class _Allocator> int basic_string<_CharT, _Traits, _Allocator>::compare(const value_type* __s) const _NOEXCEPT { -#ifdef _LIBCPP_DEBUG - assert(__s != 0); -#endif + _LIBCPP_ASSERT(__s != nullptr, "string::compare(): recieved nullptr"); return compare(0, npos, __s, traits_type::length(__s)); } @@ -3611,9 +3633,7 @@ basic_string<_CharT, _Traits, _Allocator>::compare(size_type __pos1, size_type __n1, const value_type* __s) const { -#ifdef _LIBCPP_DEBUG - assert(__s != 0); -#endif + _LIBCPP_ASSERT(__s != nullptr, "string::compare(): recieved nullptr"); return compare(__pos1, __n1, __s, traits_type::length(__s)); } @@ -3624,9 +3644,7 @@ basic_string<_CharT, _Traits, _Allocator>::compare(size_type __pos1, const value_type* __s, size_type __n2) const { -#ifdef _LIBCPP_DEBUG - assert(__s != 0); -#endif + _LIBCPP_ASSERT(__n2 == 0 || __s != nullptr, "string::compare(): recieved nullptr"); size_type __sz = size(); if (__pos1 > __sz || __n2 == npos) this->__throw_out_of_range(); @@ -4102,6 +4120,42 @@ getline(basic_istream<_CharT, _Traits>&& __is, #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES +#if _LIBCPP_DEBUG_LEVEL >= 2 + +template<class _CharT, class _Traits, class _Allocator> +bool +basic_string<_CharT, _Traits, _Allocator>::__dereferenceable(const const_iterator* __i) const +{ + return this->data() <= _VSTD::__to_raw_pointer(__i->base()) && + _VSTD::__to_raw_pointer(__i->base()) < this->data() + this->size(); +} + +template<class _CharT, class _Traits, class _Allocator> +bool +basic_string<_CharT, _Traits, _Allocator>::__decrementable(const const_iterator* __i) const +{ + return this->data() < _VSTD::__to_raw_pointer(__i->base()) && + _VSTD::__to_raw_pointer(__i->base()) <= this->data() + this->size(); +} + +template<class _CharT, class _Traits, class _Allocator> +bool +basic_string<_CharT, _Traits, _Allocator>::__addable(const const_iterator* __i, ptrdiff_t __n) const +{ + const value_type* __p = _VSTD::__to_raw_pointer(__i->base()) + __n; + return this->data() <= __p && __p <= this->data() + this->size(); +} + +template<class _CharT, class _Traits, class _Allocator> +bool +basic_string<_CharT, _Traits, _Allocator>::__subscriptable(const const_iterator* __i, ptrdiff_t __n) const +{ + const value_type* __p = _VSTD::__to_raw_pointer(__i->base()) + __n; + return this->data() <= __p && __p < this->data() + this->size(); +} + +#endif // _LIBCPP_DEBUG_LEVEL >= 2 + #if _LIBCPP_STD_VER > 11 // Literal suffixes for basic_string [basic.string.literals] // inline // Deviation from N3690. @@ -4140,10 +4194,7 @@ namespace literals _LIBCPP_EXTERN_TEMPLATE(class _LIBCPP_TYPE_VIS basic_string<char>) _LIBCPP_EXTERN_TEMPLATE(class _LIBCPP_TYPE_VIS basic_string<wchar_t>) - -extern template - string - operator+<char, char_traits<char>, allocator<char> >(char const*, string const&); +_LIBCPP_EXTERN_TEMPLATE(string operator+<char, char_traits<char>, allocator<char> >(char const*, string const&)) _LIBCPP_END_NAMESPACE_STD |
