Initial checkin for debug mode (version 2) git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@139711 91177308-0d34-0410-b5e6-96231b3b80d8 
diff --git a/include/__config b/include/__config index fffcfaa..2751619 100644 --- a/include/__config +++ b/include/__config 
@@ -309,4 +309,10 @@  #define _LIBCPP_WCTYPE_IS_MASK  #endif   +#ifdef _LIBCPP_DEBUG2 +# include <__debug> +#else +# define _LIBCPP_ASSERT(x, m) ((void)0) +#endif +  #endif // _LIBCPP_CONFIG 
diff --git a/include/__debug b/include/__debug new file mode 100644 index 0000000..e7d027a --- /dev/null +++ b/include/__debug 
@@ -0,0 +1,181 @@ +// -*- C++ -*- +//===--------------------------- __debug ----------------------------------===// +// +// The LLVM Compiler Infrastructure +// +// This file is dual licensed under the MIT and the University of Illinois Open +// Source Licenses. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#ifndef _LIBCPP_DEBUG_H +#define _LIBCPP_DEBUG_H + +# include <cstdlib> +# include <cstdio> +# include <cstddef> +# define _LIBCPP_ASSERT(x, m) ((x) ? (void)0 : (_VSTD::printf("%s\n", m), _VSTD::abort())) + +_LIBCPP_BEGIN_NAMESPACE_STD + +struct _LIBCPP_VISIBLE __c_node; + +struct _LIBCPP_VISIBLE __i_node +{ + void* __i_; + __i_node* __next_; + __c_node* __c_; + + __i_node(const __i_node&) = delete; + __i_node& operator=(const __i_node&) = delete; + _LIBCPP_INLINE_VISIBILITY + __i_node(void* __i, __i_node* __next, __c_node* __c) + : __i_(__i), __next_(__next), __c_(__c) {} + ~__i_node(); +}; + +struct _LIBCPP_VISIBLE __c_node +{ + void* __c_; + __c_node* __next_; + __i_node** beg_; + __i_node** end_; + __i_node** cap_; + + __c_node(const __c_node&) = delete; + __c_node& operator=(const __c_node&) = delete; + _LIBCPP_INLINE_VISIBILITY + __c_node(void* __c, __c_node* __next) + : __c_(__c), __next_(__next), beg_(nullptr), end_(nullptr), cap_(nullptr) {} + virtual ~__c_node(); + + virtual bool __dereferenceable(const void*) const = 0; + virtual bool __decrementable(const void*) const = 0; + virtual bool __addable(const void*, ptrdiff_t) const = 0; + virtual bool __subscriptable(const void*, ptrdiff_t) const = 0; + + _LIBCPP_HIDDEN void __add(__i_node* __i); + _LIBCPP_HIDDEN void __remove(__i_node* __i); +}; + +template <class _Cont> +struct _C_node + : public __c_node +{ + _C_node(void* __c, __c_node* __n) + : __c_node(__c, __n) {} + + virtual bool __dereferenceable(const void*) const; + virtual bool __decrementable(const void*) const; + virtual bool __addable(const void*, ptrdiff_t) const; + virtual bool __subscriptable(const void*, ptrdiff_t) const; +}; + +template <class _Cont> +bool +_C_node<_Cont>::__dereferenceable(const void* __i) const +{ + typedef typename _Cont::const_iterator iterator; + const iterator* __j = static_cast<const iterator*>(__i); + _Cont* _C = static_cast<_Cont*>(__c_); + return _C->__dereferenceable(__j); +} + +template <class _Cont> +bool +_C_node<_Cont>::__decrementable(const void* __i) const +{ + typedef typename _Cont::const_iterator iterator; + const iterator* __j = static_cast<const iterator*>(__i); + _Cont* _C = static_cast<_Cont*>(__c_); + return _C->__decrementable(__j); +} + +template <class _Cont> +bool +_C_node<_Cont>::__addable(const void* __i, ptrdiff_t __n) const +{ + typedef typename _Cont::const_iterator iterator; + const iterator* __j = static_cast<const iterator*>(__i); + _Cont* _C = static_cast<_Cont*>(__c_); + return _C->__addable(__j, __n); +} + +template <class _Cont> +bool +_C_node<_Cont>::__subscriptable(const void* __i, ptrdiff_t __n) const +{ + typedef typename _Cont::const_iterator iterator; + const iterator* __j = static_cast<const iterator*>(__i); + _Cont* _C = static_cast<_Cont*>(__c_); + return _C->__subscriptable(__j, __n); +} + +class _LIBCPP_VISIBLE __libcpp_db +{ + __c_node** __cbeg_; + __c_node** __cend_; + size_t __csz_; + __i_node** __ibeg_; + __i_node** __iend_; + size_t __isz_; + + __libcpp_db(); +public: + __libcpp_db(const __libcpp_db&) = delete; + __libcpp_db& operator=(const __libcpp_db&) = delete; + ~__libcpp_db(); + + class __db_c_iterator; + class __db_c_const_iterator; + class __db_i_iterator; + class __db_i_const_iterator; + + __db_c_const_iterator __c_end() const; + __db_i_const_iterator __i_end() const; + + template <class _Cont> + _LIBCPP_INLINE_VISIBILITY + void __insert_c(_Cont* __c) + { + __c_node* __n = __insert_c(static_cast<void*>(__c)); + ::new(__n) _C_node<_Cont>(__n->__c_, __n->__next_); + } + + __c_node* __insert_c(void* __c); + void __erase_c(void* __c); + + void __insert_ic(void* __i, const void* __c); + void __iterator_copy(void* __i, const void* __i0); + void __erase_i(void* __i); + + void* __find_c_from_i(void* __i) const; + void __invalidate_all(void* __c); + __c_node* __find_c_and_lock(void* __c) const; + void unlock() const; + + void swap(void* __c1, void* __c2); + + + bool __dereferenceable(const void* __i) const; + bool __decrementable(const void* __i) const; + bool __addable(const void* __i, ptrdiff_t __n) const; + bool __subscriptable(const void* __i, ptrdiff_t __n) const; + bool __comparable(const void* __i, const void* __j) const; +private: + _LIBCPP_HIDDEN + __i_node* __insert_iterator(void* __i); + _LIBCPP_HIDDEN + __i_node* __find_iterator(const void* __i) const; + + friend _LIBCPP_VISIBLE __libcpp_db* __get_db(); +}; + +_LIBCPP_VISIBLE __libcpp_db* __get_db(); +_LIBCPP_VISIBLE const __libcpp_db* __get_const_db(); + + +_LIBCPP_END_NAMESPACE_STD + +#endif // _LIBCPP_DEBUG_H + 
diff --git a/include/algorithm b/include/algorithm index da9d0fe..d6906a2 100644 --- a/include/algorithm +++ b/include/algorithm 
@@ -593,9 +593,6 @@  #include <utility>  #include <memory>  #include <iterator> -#ifdef _LIBCPP_DEBUG -#include <cassert> -#endif  #include <cstdlib>    #pragma GCC system_header @@ -676,7 +673,7 @@  bool operator()(const _T1& __x, const _T2& __y) {return !__p_(__x, __y);}  };   -#ifdef _LIBCPP_DEBUG +#ifdef _LIBCPP_DEBUG2    template <class _Compare>  struct __debug_less @@ -688,12 +685,12 @@  {  bool __r = __comp_(__x, __y);  if (__r) - assert(!__comp_(__y, __x)); + _LIBCPP_ASSERT(!__comp_(__y, __x), "Comparator does not induce a strict weak ordering");  return __r;  }  };   -#endif // _LIBCPP_DEBUG +#endif // _LIBCPP_DEBUG2    // Precondition: __x != 0  inline _LIBCPP_INLINE_VISIBILITY unsigned __ctz(unsigned __x) {return __builtin_ctz (__x);} @@ -3641,14 +3638,14 @@  void  sort(_RandomAccessIterator __first, _RandomAccessIterator __last, _Compare __comp)  { -#ifdef _LIBCPP_DEBUG +#ifdef _LIBCPP_DEBUG2  typedef typename add_lvalue_reference<__debug_less<_Compare> >::type _Comp_ref;  __debug_less<_Compare> __c(__comp);  __sort<_Comp_ref>(__first, __last, __c); -#else // _LIBCPP_DEBUG +#else // _LIBCPP_DEBUG2  typedef typename add_lvalue_reference<_Compare>::type _Comp_ref;  __sort<_Comp_ref>(__first, __last, __comp); -#endif // _LIBCPP_DEBUG +#endif // _LIBCPP_DEBUG2  }    template <class _RandomAccessIterator> @@ -3675,6 +3672,15 @@  _VSTD::sort(__first.base(), __last.base());  }   +template <class _Tp, class _Compare> +inline _LIBCPP_INLINE_VISIBILITY +void +sort(__wrap_iter<_Tp*> __first, __wrap_iter<_Tp*> __last, _Compare __comp) +{ + typedef typename add_lvalue_reference<_Compare>::type _Comp_ref; + _VSTD::sort<_Tp*, _Comp_ref>(__first.base(), __last.base(), __comp); +} +  extern template void __sort<__less<char>&, char*>(char*, char*, __less<char>&);  extern template void __sort<__less<wchar_t>&, wchar_t*>(wchar_t*, wchar_t*, __less<wchar_t>&);  extern template void __sort<__less<signed char>&, signed char*>(signed char*, signed char*, __less<signed char>&); @@ -3738,14 +3744,14 @@  _ForwardIterator  lower_bound(_ForwardIterator __first, _ForwardIterator __last, const _Tp& __value, _Compare __comp)  { -#ifdef _LIBCPP_DEBUG +#ifdef _LIBCPP_DEBUG2  typedef typename add_lvalue_reference<__debug_less<_Compare> >::type _Comp_ref;  __debug_less<_Compare> __c(__comp);  return __lower_bound<_Comp_ref>(__first, __last, __value, __c); -#else // _LIBCPP_DEBUG +#else // _LIBCPP_DEBUG2  typedef typename add_lvalue_reference<_Compare>::type _Comp_ref;  return __lower_bound<_Comp_ref>(__first, __last, __value, __comp); -#endif // _LIBCPP_DEBUG +#endif // _LIBCPP_DEBUG2  }    template <class _ForwardIterator, class _Tp> @@ -3786,14 +3792,14 @@  _ForwardIterator  upper_bound(_ForwardIterator __first, _ForwardIterator __last, const _Tp& __value, _Compare __comp)  { -#ifdef _LIBCPP_DEBUG +#ifdef _LIBCPP_DEBUG2  typedef typename add_lvalue_reference<__debug_less<_Compare> >::type _Comp_ref;  __debug_less<_Compare> __c(__comp);  return __upper_bound<_Comp_ref>(__first, __last, __value, __c); -#else // _LIBCPP_DEBUG +#else // _LIBCPP_DEBUG2  typedef typename add_lvalue_reference<_Compare>::type _Comp_ref;  return __upper_bound<_Comp_ref>(__first, __last, __value, __comp); -#endif // _LIBCPP_DEBUG +#endif // _LIBCPP_DEBUG2  }    template <class _ForwardIterator, class _Tp> @@ -3846,14 +3852,14 @@  pair<_ForwardIterator, _ForwardIterator>  equal_range(_ForwardIterator __first, _ForwardIterator __last, const _Tp& __value, _Compare __comp)  { -#ifdef _LIBCPP_DEBUG +#ifdef _LIBCPP_DEBUG2  typedef typename add_lvalue_reference<__debug_less<_Compare> >::type _Comp_ref;  __debug_less<_Compare> __c(__comp);  return __equal_range<_Comp_ref>(__first, __last, __value, __c); -#else // _LIBCPP_DEBUG +#else // _LIBCPP_DEBUG2  typedef typename add_lvalue_reference<_Compare>::type _Comp_ref;  return __equal_range<_Comp_ref>(__first, __last, __value, __comp); -#endif // _LIBCPP_DEBUG +#endif // _LIBCPP_DEBUG2  }    template <class _ForwardIterator, class _Tp> @@ -3881,14 +3887,14 @@  bool  binary_search(_ForwardIterator __first, _ForwardIterator __last, const _Tp& __value, _Compare __comp)  { -#ifdef _LIBCPP_DEBUG +#ifdef _LIBCPP_DEBUG2  typedef typename add_lvalue_reference<__debug_less<_Compare> >::type _Comp_ref;  __debug_less<_Compare> __c(__comp);  return __binary_search<_Comp_ref>(__first, __last, __value, __c); -#else // _LIBCPP_DEBUG +#else // _LIBCPP_DEBUG2  typedef typename add_lvalue_reference<_Compare>::type _Comp_ref;  return __binary_search<_Comp_ref>(__first, __last, __value, __comp); -#endif // _LIBCPP_DEBUG +#endif // _LIBCPP_DEBUG2  }    template <class _ForwardIterator, class _Tp> @@ -3931,14 +3937,14 @@  merge(_InputIterator1 __first1, _InputIterator1 __last1,  _InputIterator2 __first2, _InputIterator2 __last2, _OutputIterator __result, _Compare __comp)  { -#ifdef _LIBCPP_DEBUG +#ifdef _LIBCPP_DEBUG2  typedef typename add_lvalue_reference<__debug_less<_Compare> >::type _Comp_ref;  __debug_less<_Compare> __c(__comp);  return _VSTD::__merge<_Comp_ref>(__first1, __last1, __first2, __last2, __result, __c); -#else // _LIBCPP_DEBUG +#else // _LIBCPP_DEBUG2  typedef typename add_lvalue_reference<_Compare>::type _Comp_ref;  return _VSTD::__merge<_Comp_ref>(__first1, __last1, __first2, __last2, __result, __comp); -#endif // _LIBCPP_DEBUG +#endif // _LIBCPP_DEBUG2  }    template <class _InputIterator1, class _InputIterator2, class _OutputIterator> @@ -4105,16 +4111,16 @@  __buf = _VSTD::get_temporary_buffer<value_type>(__buf_size);  __h.reset(__buf.first);  } -#ifdef _LIBCPP_DEBUG +#ifdef _LIBCPP_DEBUG2  typedef typename add_lvalue_reference<__debug_less<_Compare> >::type _Comp_ref;  __debug_less<_Compare> __c(__comp);  return _VSTD::__inplace_merge<_Comp_ref>(__first, __middle, __last, __c, __len1, __len2,  __buf.first, __buf.second); -#else // _LIBCPP_DEBUG +#else // _LIBCPP_DEBUG2  typedef typename add_lvalue_reference<_Compare>::type _Comp_ref;  return _VSTD::__inplace_merge<_Comp_ref>(__first, __middle, __last, __comp, __len1, __len2,  __buf.first, __buf.second); -#endif // _LIBCPP_DEBUG +#endif // _LIBCPP_DEBUG2  }    template <class _BidirectionalIterator> @@ -4316,14 +4322,14 @@  __buf = _VSTD::get_temporary_buffer<value_type>(__len);  __h.reset(__buf.first);  } -#ifdef _LIBCPP_DEBUG +#ifdef _LIBCPP_DEBUG2  typedef typename add_lvalue_reference<__debug_less<_Compare> >::type _Comp_ref;  __debug_less<_Compare> __c(__comp);  __stable_sort<_Comp_ref>(__first, __last, __c, __len, __buf.first, __buf.second); -#else // _LIBCPP_DEBUG +#else // _LIBCPP_DEBUG2  typedef typename add_lvalue_reference<_Compare>::type _Comp_ref;  __stable_sort<_Comp_ref>(__first, __last, __comp, __len, __buf.first, __buf.second); -#endif // _LIBCPP_DEBUG +#endif // _LIBCPP_DEBUG2  }    template <class _RandomAccessIterator> @@ -4465,14 +4471,14 @@  void  push_heap(_RandomAccessIterator __first, _RandomAccessIterator __last, _Compare __comp)  { -#ifdef _LIBCPP_DEBUG +#ifdef _LIBCPP_DEBUG2  typedef typename add_lvalue_reference<__debug_less<_Compare> >::type _Comp_ref;  __debug_less<_Compare> __c(__comp);  __push_heap_back<_Comp_ref>(__first, __last, __c, __last - __first); -#else // _LIBCPP_DEBUG +#else // _LIBCPP_DEBUG2  typedef typename add_lvalue_reference<_Compare>::type _Comp_ref;  __push_heap_back<_Comp_ref>(__first, __last, __comp, __last - __first); -#endif // _LIBCPP_DEBUG +#endif // _LIBCPP_DEBUG2  }    template <class _RandomAccessIterator> @@ -4503,14 +4509,14 @@  void  pop_heap(_RandomAccessIterator __first, _RandomAccessIterator __last, _Compare __comp)  { -#ifdef _LIBCPP_DEBUG +#ifdef _LIBCPP_DEBUG2  typedef typename add_lvalue_reference<__debug_less<_Compare> >::type _Comp_ref;  __debug_less<_Compare> __c(__comp);  __pop_heap<_Comp_ref>(__first, __last, __c, __last - __first); -#else // _LIBCPP_DEBUG +#else // _LIBCPP_DEBUG2  typedef typename add_lvalue_reference<_Compare>::type _Comp_ref;  __pop_heap<_Comp_ref>(__first, __last, __comp, __last - __first); -#endif // _LIBCPP_DEBUG +#endif // _LIBCPP_DEBUG2  }    template <class _RandomAccessIterator> @@ -4543,14 +4549,14 @@  void  make_heap(_RandomAccessIterator __first, _RandomAccessIterator __last, _Compare __comp)  { -#ifdef _LIBCPP_DEBUG +#ifdef _LIBCPP_DEBUG2  typedef typename add_lvalue_reference<__debug_less<_Compare> >::type _Comp_ref;  __debug_less<_Compare> __c(__comp);  __make_heap<_Comp_ref>(__first, __last, __c); -#else // _LIBCPP_DEBUG +#else // _LIBCPP_DEBUG2  typedef typename add_lvalue_reference<_Compare>::type _Comp_ref;  __make_heap<_Comp_ref>(__first, __last, __comp); -#endif // _LIBCPP_DEBUG +#endif // _LIBCPP_DEBUG2  }    template <class _RandomAccessIterator> @@ -4577,14 +4583,14 @@  void  sort_heap(_RandomAccessIterator __first, _RandomAccessIterator __last, _Compare __comp)  { -#ifdef _LIBCPP_DEBUG +#ifdef _LIBCPP_DEBUG2  typedef typename add_lvalue_reference<__debug_less<_Compare> >::type _Comp_ref;  __debug_less<_Compare> __c(__comp);  __sort_heap<_Comp_ref>(__first, __last, __c); -#else // _LIBCPP_DEBUG +#else // _LIBCPP_DEBUG2  typedef typename add_lvalue_reference<_Compare>::type _Comp_ref;  __sort_heap<_Comp_ref>(__first, __last, __comp); -#endif // _LIBCPP_DEBUG +#endif // _LIBCPP_DEBUG2  }    template <class _RandomAccessIterator> @@ -4621,14 +4627,14 @@  partial_sort(_RandomAccessIterator __first, _RandomAccessIterator __middle, _RandomAccessIterator __last,  _Compare __comp)  { -#ifdef _LIBCPP_DEBUG +#ifdef _LIBCPP_DEBUG2  typedef typename add_lvalue_reference<__debug_less<_Compare> >::type _Comp_ref;  __debug_less<_Compare> __c(__comp);  __partial_sort<_Comp_ref>(__first, __middle, __last, __c); -#else // _LIBCPP_DEBUG +#else // _LIBCPP_DEBUG2  typedef typename add_lvalue_reference<_Compare>::type _Comp_ref;  __partial_sort<_Comp_ref>(__first, __middle, __last, __comp); -#endif // _LIBCPP_DEBUG +#endif // _LIBCPP_DEBUG2  }    template <class _RandomAccessIterator> @@ -4671,14 +4677,14 @@  partial_sort_copy(_InputIterator __first, _InputIterator __last,  _RandomAccessIterator __result_first, _RandomAccessIterator __result_last, _Compare __comp)  { -#ifdef _LIBCPP_DEBUG +#ifdef _LIBCPP_DEBUG2  typedef typename add_lvalue_reference<__debug_less<_Compare> >::type _Comp_ref;  __debug_less<_Compare> __c(__comp);  return __partial_sort_copy<_Comp_ref>(__first, __last, __result_first, __result_last, __c); -#else // _LIBCPP_DEBUG +#else // _LIBCPP_DEBUG2  typedef typename add_lvalue_reference<_Compare>::type _Comp_ref;  return __partial_sort_copy<_Comp_ref>(__first, __last, __result_first, __result_last, __comp); -#endif // _LIBCPP_DEBUG +#endif // _LIBCPP_DEBUG2  }    template <class _InputIterator, class _RandomAccessIterator> @@ -4883,14 +4889,14 @@  void  nth_element(_RandomAccessIterator __first, _RandomAccessIterator __nth, _RandomAccessIterator __last, _Compare __comp)  { -#ifdef _LIBCPP_DEBUG +#ifdef _LIBCPP_DEBUG2  typedef typename add_lvalue_reference<__debug_less<_Compare> >::type _Comp_ref;  __debug_less<_Compare> __c(__comp);  __nth_element<_Comp_ref>(__first, __nth, __last, __c); -#else // _LIBCPP_DEBUG +#else // _LIBCPP_DEBUG2  typedef typename add_lvalue_reference<_Compare>::type _Comp_ref;  __nth_element<_Comp_ref>(__first, __nth, __last, __comp); -#endif // _LIBCPP_DEBUG +#endif // _LIBCPP_DEBUG2  }    template <class _RandomAccessIterator> @@ -4924,14 +4930,14 @@  includes(_InputIterator1 __first1, _InputIterator1 __last1, _InputIterator2 __first2, _InputIterator2 __last2,  _Compare __comp)  { -#ifdef _LIBCPP_DEBUG +#ifdef _LIBCPP_DEBUG2  typedef typename add_lvalue_reference<__debug_less<_Compare> >::type _Comp_ref;  __debug_less<_Compare> __c(__comp);  return __includes<_Comp_ref>(__first1, __last1, __first2, __last2, __c); -#else // _LIBCPP_DEBUG +#else // _LIBCPP_DEBUG2  typedef typename add_lvalue_reference<_Compare>::type _Comp_ref;  return __includes<_Comp_ref>(__first1, __last1, __first2, __last2, __comp); -#endif // _LIBCPP_DEBUG +#endif // _LIBCPP_DEBUG2  }    template <class _InputIterator1, class _InputIterator2> @@ -4977,14 +4983,14 @@  set_union(_InputIterator1 __first1, _InputIterator1 __last1,  _InputIterator2 __first2, _InputIterator2 __last2, _OutputIterator __result, _Compare __comp)  { -#ifdef _LIBCPP_DEBUG +#ifdef _LIBCPP_DEBUG2  typedef typename add_lvalue_reference<__debug_less<_Compare> >::type _Comp_ref;  __debug_less<_Compare> __c(__comp);  return __set_union<_Comp_ref>(__first1, __last1, __first2, __last2, __result, __c); -#else // _LIBCPP_DEBUG +#else // _LIBCPP_DEBUG2  typedef typename add_lvalue_reference<_Compare>::type _Comp_ref;  return __set_union<_Comp_ref>(__first1, __last1, __first2, __last2, __result, __comp); -#endif // _LIBCPP_DEBUG +#endif // _LIBCPP_DEBUG2  }    template <class _InputIterator1, class _InputIterator2, class _OutputIterator> @@ -5029,14 +5035,14 @@  set_intersection(_InputIterator1 __first1, _InputIterator1 __last1,  _InputIterator2 __first2, _InputIterator2 __last2, _OutputIterator __result, _Compare __comp)  { -#ifdef _LIBCPP_DEBUG +#ifdef _LIBCPP_DEBUG2  typedef typename add_lvalue_reference<__debug_less<_Compare> >::type _Comp_ref;  __debug_less<_Compare> __c(__comp);  return __set_intersection<_Comp_ref>(__first1, __last1, __first2, __last2, __result, __c); -#else // _LIBCPP_DEBUG +#else // _LIBCPP_DEBUG2  typedef typename add_lvalue_reference<_Compare>::type _Comp_ref;  return __set_intersection<_Comp_ref>(__first1, __last1, __first2, __last2, __result, __comp); -#endif // _LIBCPP_DEBUG +#endif // _LIBCPP_DEBUG2  }    template <class _InputIterator1, class _InputIterator2, class _OutputIterator> @@ -5083,14 +5089,14 @@  set_difference(_InputIterator1 __first1, _InputIterator1 __last1,  _InputIterator2 __first2, _InputIterator2 __last2, _OutputIterator __result, _Compare __comp)  { -#ifdef _LIBCPP_DEBUG +#ifdef _LIBCPP_DEBUG2  typedef typename add_lvalue_reference<__debug_less<_Compare> >::type _Comp_ref;  __debug_less<_Compare> __c(__comp);  return __set_difference<_Comp_ref>(__first1, __last1, __first2, __last2, __result, __c); -#else // _LIBCPP_DEBUG +#else // _LIBCPP_DEBUG2  typedef typename add_lvalue_reference<_Compare>::type _Comp_ref;  return __set_difference<_Comp_ref>(__first1, __last1, __first2, __last2, __result, __comp); -#endif // _LIBCPP_DEBUG +#endif // _LIBCPP_DEBUG2  }    template <class _InputIterator1, class _InputIterator2, class _OutputIterator> @@ -5142,14 +5148,14 @@  set_symmetric_difference(_InputIterator1 __first1, _InputIterator1 __last1,  _InputIterator2 __first2, _InputIterator2 __last2, _OutputIterator __result, _Compare __comp)  { -#ifdef _LIBCPP_DEBUG +#ifdef _LIBCPP_DEBUG2  typedef typename add_lvalue_reference<__debug_less<_Compare> >::type _Comp_ref;  __debug_less<_Compare> __c(__comp);  return __set_symmetric_difference<_Comp_ref>(__first1, __last1, __first2, __last2, __result, __c); -#else // _LIBCPP_DEBUG +#else // _LIBCPP_DEBUG2  typedef typename add_lvalue_reference<_Compare>::type _Comp_ref;  return __set_symmetric_difference<_Comp_ref>(__first1, __last1, __first2, __last2, __result, __comp); -#endif // _LIBCPP_DEBUG +#endif // _LIBCPP_DEBUG2  }    template <class _InputIterator1, class _InputIterator2, class _OutputIterator> @@ -5186,14 +5192,14 @@  lexicographical_compare(_InputIterator1 __first1, _InputIterator1 __last1,  _InputIterator2 __first2, _InputIterator2 __last2, _Compare __comp)  { -#ifdef _LIBCPP_DEBUG +#ifdef _LIBCPP_DEBUG2  typedef typename add_lvalue_reference<__debug_less<_Compare> >::type _Comp_ref;  __debug_less<_Compare> __c(__comp);  return __lexicographical_compare<_Comp_ref>(__first1, __last1, __first2, __last2, __c); -#else // _LIBCPP_DEBUG +#else // _LIBCPP_DEBUG2  typedef typename add_lvalue_reference<_Compare>::type _Comp_ref;  return __lexicographical_compare<_Comp_ref>(__first1, __last1, __first2, __last2, __comp); -#endif // _LIBCPP_DEBUG +#endif // _LIBCPP_DEBUG2  }    template <class _InputIterator1, class _InputIterator2> @@ -5241,14 +5247,14 @@  bool  next_permutation(_BidirectionalIterator __first, _BidirectionalIterator __last, _Compare __comp)  { -#ifdef _LIBCPP_DEBUG +#ifdef _LIBCPP_DEBUG2  typedef typename add_lvalue_reference<__debug_less<_Compare> >::type _Comp_ref;  __debug_less<_Compare> __c(__comp);  return __next_permutation<_Comp_ref>(__first, __last, __c); -#else // _LIBCPP_DEBUG +#else // _LIBCPP_DEBUG2  typedef typename add_lvalue_reference<_Compare>::type _Comp_ref;  return __next_permutation<_Comp_ref>(__first, __last, __comp); -#endif // _LIBCPP_DEBUG +#endif // _LIBCPP_DEBUG2  }    template <class _BidirectionalIterator> @@ -5294,14 +5300,14 @@  bool  prev_permutation(_BidirectionalIterator __first, _BidirectionalIterator __last, _Compare __comp)  { -#ifdef _LIBCPP_DEBUG +#ifdef _LIBCPP_DEBUG2  typedef typename add_lvalue_reference<__debug_less<_Compare> >::type _Comp_ref;  __debug_less<_Compare> __c(__comp);  return __prev_permutation<_Comp_ref>(__first, __last, __c); -#else // _LIBCPP_DEBUG +#else // _LIBCPP_DEBUG2  typedef typename add_lvalue_reference<_Compare>::type _Comp_ref;  return __prev_permutation<_Comp_ref>(__first, __last, __comp); -#endif // _LIBCPP_DEBUG +#endif // _LIBCPP_DEBUG2  }    template <class _BidirectionalIterator> 
diff --git a/include/iterator b/include/iterator index b232d09..ed2d7a7 100644 --- a/include/iterator +++ b/include/iterator 
@@ -1066,30 +1066,90 @@  _LIBCPP_INLINE_VISIBILITY __wrap_iter() _NOEXCEPT {}  template <class _Up> _LIBCPP_INLINE_VISIBILITY __wrap_iter(const __wrap_iter<_Up>& __u,  typename enable_if<is_convertible<_Up, iterator_type>::value>::type* = 0) _NOEXCEPT - : __i(__u.base()) {} - _LIBCPP_INLINE_VISIBILITY reference operator*() const _NOEXCEPT {return *__i;} + : __i(__u.base()) + { +#ifdef _LIBCPP_DEBUG2 + __get_db()->__iterator_copy(this, &__u); +#endif + } +#ifdef _LIBCPP_DEBUG2 + _LIBCPP_INLINE_VISIBILITY + __wrap_iter(const __wrap_iter& __x) + : __i(__x.base()) + { + __get_db()->__iterator_copy(this, &__x); + } + _LIBCPP_INLINE_VISIBILITY + __wrap_iter& operator=(const __wrap_iter& __x) + { + if (this != &__x) + { + __get_db()->__iterator_copy(this, &__x); + __i = __x.__i; + } + return *this; + } + _LIBCPP_INLINE_VISIBILITY + ~__wrap_iter() + { + __get_db()->__erase_i(this); + } +#endif + _LIBCPP_INLINE_VISIBILITY reference operator*() const _NOEXCEPT + { + _LIBCPP_ASSERT(__get_const_db()->__dereferenceable(this), + "Attempted to dereference a non-dereferenceable iterator"); + return *__i; + }  _LIBCPP_INLINE_VISIBILITY pointer operator->() const _NOEXCEPT {return &(operator*());} - _LIBCPP_INLINE_VISIBILITY __wrap_iter& operator++() _NOEXCEPT {++__i; return *this;} + _LIBCPP_INLINE_VISIBILITY __wrap_iter& operator++() _NOEXCEPT + { + _LIBCPP_ASSERT(__get_const_db()->__dereferenceable(this), + "Attempted to increment non-incrementable iterator"); + ++__i; + return *this; + }  _LIBCPP_INLINE_VISIBILITY __wrap_iter operator++(int) _NOEXCEPT - {__wrap_iter __tmp(*this); ++__i; return __tmp;} - _LIBCPP_INLINE_VISIBILITY __wrap_iter& operator--() _NOEXCEPT {--__i; return *this;} + {__wrap_iter __tmp(*this); ++(*this); return __tmp;} + _LIBCPP_INLINE_VISIBILITY __wrap_iter& operator--() _NOEXCEPT + { + _LIBCPP_ASSERT(__get_const_db()->__decrementable(this), + "Attempted to decrement non-decrementable iterator"); + --__i; + return *this; + }  _LIBCPP_INLINE_VISIBILITY __wrap_iter operator--(int) _NOEXCEPT - {__wrap_iter __tmp(*this); --__i; return __tmp;} + {__wrap_iter __tmp(*this); --(*this); return __tmp;}  _LIBCPP_INLINE_VISIBILITY __wrap_iter operator+ (difference_type __n) const _NOEXCEPT - {return __wrap_iter(__i + __n);} + {__wrap_iter __w(*this); __w += __n; return __w;}  _LIBCPP_INLINE_VISIBILITY __wrap_iter& operator+=(difference_type __n) _NOEXCEPT - {__i += __n; return *this;} + { + _LIBCPP_ASSERT(__get_const_db()->__addable(this, __n), + "Attempted to add/subtract iterator outside of valid range"); + __i += __n; + return *this; + }  _LIBCPP_INLINE_VISIBILITY __wrap_iter operator- (difference_type __n) const _NOEXCEPT - {return __wrap_iter(__i - __n);} + {return *this + (-__n);}  _LIBCPP_INLINE_VISIBILITY __wrap_iter& operator-=(difference_type __n) _NOEXCEPT - {__i -= __n; return *this;} + {*this += -__n; return *this;}  _LIBCPP_INLINE_VISIBILITY reference operator[](difference_type __n) const _NOEXCEPT - {return __i[__n];} + { + _LIBCPP_ASSERT(__get_const_db()->__subscriptable(this, __n), + "Attempted to subscript iterator outside of valid range"); + return __i[__n]; + }    _LIBCPP_INLINE_VISIBILITY iterator_type base() const _NOEXCEPT {return __i;}    private:  _LIBCPP_INLINE_VISIBILITY __wrap_iter(iterator_type __x) _NOEXCEPT : __i(__x) {} +#ifdef _LIBCPP_DEBUG2 + _LIBCPP_INLINE_VISIBILITY __wrap_iter(const void* __p, iterator_type __x) : __i(__x) + { + __get_db()->__insert_ic(this, __p); + } +#endif    template <class _Up> friend class __wrap_iter;  template <class _CharT, class _Traits, class _Alloc> friend class basic_string; @@ -1155,6 +1215,8 @@  bool  operator==(const __wrap_iter<_Iter1>& __x, const __wrap_iter<_Iter2>& __y) _NOEXCEPT  { + _LIBCPP_ASSERT(__get_const_db()->__comparable(&__x, &__y), + "Attempted to compare incomparable iterators");  return __x.base() == __y.base();  }   @@ -1163,6 +1225,8 @@  bool  operator<(const __wrap_iter<_Iter1>& __x, const __wrap_iter<_Iter2>& __y) _NOEXCEPT  { + _LIBCPP_ASSERT(__get_const_db()->__comparable(&__x, &__y), + "Attempted to compare incomparable iterators");  return __x.base() < __y.base();  }   @@ -1171,7 +1235,7 @@  bool  operator!=(const __wrap_iter<_Iter1>& __x, const __wrap_iter<_Iter2>& __y) _NOEXCEPT  { - return __x.base() != __y.base(); + return !(__x == __y);  }    template <class _Iter1, class _Iter2> @@ -1179,7 +1243,7 @@  bool  operator>(const __wrap_iter<_Iter1>& __x, const __wrap_iter<_Iter2>& __y) _NOEXCEPT  { - return __x.base() > __y.base(); + return __y < __x;  }    template <class _Iter1, class _Iter2> @@ -1187,7 +1251,7 @@  bool  operator>=(const __wrap_iter<_Iter1>& __x, const __wrap_iter<_Iter2>& __y) _NOEXCEPT  { - return __x.base() >= __y.base(); + return !(__x < __y);  }    template <class _Iter1, class _Iter2> @@ -1195,7 +1259,7 @@  bool  operator<=(const __wrap_iter<_Iter1>& __x, const __wrap_iter<_Iter2>& __y) _NOEXCEPT  { - return __x.base() <= __y.base(); + return !(__y < __x);  }    template <class _Iter1, class _Iter2> @@ -1203,6 +1267,8 @@  typename __wrap_iter<_Iter1>::difference_type  operator-(const __wrap_iter<_Iter1>& __x, const __wrap_iter<_Iter2>& __y) _NOEXCEPT  { + _LIBCPP_ASSERT(__get_const_db()->__comparable(&__x, &__y), + "Attempted to subtract incompatible iterators");  return __x.base() - __y.base();  }   @@ -1210,9 +1276,10 @@  inline _LIBCPP_INLINE_VISIBILITY  __wrap_iter<_Iter>  operator+(typename __wrap_iter<_Iter>::difference_type __n, - const __wrap_iter<_Iter>& __x) _NOEXCEPT + __wrap_iter<_Iter> __x) _NOEXCEPT  { - return __wrap_iter<_Iter>(__x.base() + __n); + __x += __n; + return __x;  }    #ifdef _LIBCPP_DEBUG 
diff --git a/include/vector b/include/vector index 348fe4a..d1a67ce 100644 --- a/include/vector +++ b/include/vector 
@@ -513,8 +513,18 @@  _LIBCPP_INLINE_VISIBILITY  vector()  _NOEXCEPT_(is_nothrow_default_constructible<allocator_type>::value) - {} - _LIBCPP_INLINE_VISIBILITY explicit vector(const allocator_type& __a) : __base(__a) {} + { +#ifdef _LIBCPP_DEBUG2 + __get_db()->__insert_c(this); +#endif + } + _LIBCPP_INLINE_VISIBILITY explicit vector(const allocator_type& __a) + : __base(__a) + { +#ifdef _LIBCPP_DEBUG2 + __get_db()->__insert_c(this); +#endif + }  explicit vector(size_type __n);  vector(size_type __n, const_reference __x);  vector(size_type __n, const_reference __x, const allocator_type& __a); @@ -538,9 +548,12 @@  _LIBCPP_INLINE_VISIBILITY  vector(initializer_list<value_type> __il, const allocator_type& __a);  #endif // _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS -#ifdef _LIBCPP_DEBUG +#ifdef _LIBCPP_DEBUG2  _LIBCPP_INLINE_VISIBILITY - ~vector() {__invalidate_all_iterators();} + ~vector() + { + __get_db()->__erase_c(this); + }  #endif    vector(const vector& __x); @@ -641,10 +654,26 @@  reference at(size_type __n);  const_reference at(size_type __n) const;   - _LIBCPP_INLINE_VISIBILITY reference front() {return *this->__begin_;} - _LIBCPP_INLINE_VISIBILITY const_reference front() const {return *this->__begin_;} - _LIBCPP_INLINE_VISIBILITY reference back() {return *(this->__end_ - 1);} - _LIBCPP_INLINE_VISIBILITY const_reference back() const {return *(this->__end_ - 1);} + _LIBCPP_INLINE_VISIBILITY reference front() + { + _LIBCPP_ASSERT(!empty(), "front() called for empty vector"); + return *this->__begin_; + } + _LIBCPP_INLINE_VISIBILITY const_reference front() const + { + _LIBCPP_ASSERT(!empty(), "front() called for empty vector"); + return *this->__begin_; + } + _LIBCPP_INLINE_VISIBILITY reference back() + { + _LIBCPP_ASSERT(!empty(), "back() called for empty vector"); + return *(this->__end_ - 1); + } + _LIBCPP_INLINE_VISIBILITY const_reference back() const + { + _LIBCPP_ASSERT(!empty(), "back() called for empty vector"); + return *(this->__end_ - 1); + }    _LIBCPP_INLINE_VISIBILITY  value_type* data() _NOEXCEPT @@ -698,7 +727,10 @@    _LIBCPP_INLINE_VISIBILITY  void clear() _NOEXCEPT - {__base::clear();} + { + __base::clear(); + __invalidate_all_iterators(); + }    void resize(size_type __sz);  void resize(size_type __sz, const_reference __x); @@ -709,6 +741,15 @@    bool __invariants() const;   +#ifdef _LIBCPP_DEBUG2 + + 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_DEBUG2 +  private:  _LIBCPP_INLINE_VISIBILITY void __invalidate_all_iterators();  void allocate(size_type __n); @@ -736,6 +777,26 @@  void __move_assign(vector& __c, true_type)  _NOEXCEPT_(is_nothrow_move_assignable<allocator_type>::value);  void __move_assign(vector& __c, false_type); + _LIBCPP_INLINE_VISIBILITY + void __destruct_at_end(const_pointer __new_last) _NOEXCEPT + { +#ifdef _LIBCPP_DEBUG2 + __c_node* __c = __get_db()->__find_c_and_lock(this); + for (__i_node** __p = __c->end_; __p != __c->beg_; ) + { + --__p; + const_iterator* __i = static_cast<const_iterator*>((*__p)->__i_); + if (__i->base() > __new_last) + { + (*__p)->__c_ = nullptr; + if (--__c->end_ != __p) + memmove(__p, __p+1, (__c->end_ - __p)*sizeof(__i_node*)); + } + } + __get_db()->unlock(); +#endif + __base::__destruct_at_end(__new_last); + }  };    template <class _Tp, class _Allocator> @@ -793,7 +854,6 @@  {  clear();  __alloc_traits::deallocate(this->__alloc(), this->__begin_, capacity()); - __invalidate_all_iterators();  this->__begin_ = this->__end_ = this->__end_cap() = 0;  }  } @@ -934,6 +994,9 @@  allocate(__n);  __construct_at_end(__n);  } +#ifdef _LIBCPP_DEBUG2 + __get_db()->__insert_c(this); +#endif  }    template <class _Tp, class _Allocator> @@ -944,6 +1007,9 @@  allocate(__n);  __construct_at_end(__n, __x);  } +#ifdef _LIBCPP_DEBUG2 + __get_db()->__insert_c(this); +#endif  }    template <class _Tp, class _Allocator> @@ -955,6 +1021,9 @@  allocate(__n);  __construct_at_end(__n, __x);  } +#ifdef _LIBCPP_DEBUG2 + __get_db()->__insert_c(this); +#endif  }    template <class _Tp, class _Allocator> @@ -965,6 +1034,9 @@  {  for (; __first != __last; ++__first)  push_back(*__first); +#ifdef _LIBCPP_DEBUG2 + __get_db()->__insert_c(this); +#endif  }    template <class _Tp, class _Allocator> @@ -976,6 +1048,9 @@  {  for (; __first != __last; ++__first)  push_back(*__first); +#ifdef _LIBCPP_DEBUG2 + __get_db()->__insert_c(this); +#endif  }    template <class _Tp, class _Allocator> @@ -989,6 +1064,9 @@  allocate(__n);  __construct_at_end(__first, __last);  } +#ifdef _LIBCPP_DEBUG2 + __get_db()->__insert_c(this); +#endif  }    template <class _Tp, class _Allocator> @@ -1003,6 +1081,9 @@  allocate(__n);  __construct_at_end(__first, __last);  } +#ifdef _LIBCPP_DEBUG2 + __get_db()->__insert_c(this); +#endif  }    template <class _Tp, class _Allocator> @@ -1015,6 +1096,9 @@  allocate(__n);  __construct_at_end(__x.__begin_, __x.__end_);  } +#ifdef _LIBCPP_DEBUG2 + __get_db()->__insert_c(this); +#endif  }    template <class _Tp, class _Allocator> @@ -1027,6 +1111,9 @@  allocate(__n);  __construct_at_end(__x.__begin_, __x.__end_);  } +#ifdef _LIBCPP_DEBUG2 + __get_db()->__insert_c(this); +#endif  }    #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES @@ -1041,7 +1128,10 @@  this->__end_ = __x.__end_;  this->__end_cap() = __x.__end_cap();  __x.__begin_ = __x.__end_ = __x.__end_cap() = 0; +#ifdef _LIBCPP_DEBUG2  __x.__invalidate_all_iterators(); + __get_db()->__insert_c(this); +#endif  }    template <class _Tp, class _Allocator> @@ -1062,6 +1152,9 @@  typedef move_iterator<iterator> _I;  assign(_I(__x.begin()), _I(__x.end()));  } +#ifdef _LIBCPP_DEBUG2 + __get_db()->__insert_c(this); +#endif  }    #ifndef _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS @@ -1075,6 +1168,9 @@  allocate(__il.size());  __construct_at_end(__il.begin(), __il.end());  } +#ifdef _LIBCPP_DEBUG2 + __get_db()->__insert_c(this); +#endif  }    template <class _Tp, class _Allocator> @@ -1087,6 +1183,9 @@  allocate(__il.size());  __construct_at_end(__il.begin(), __il.end());  } +#ifdef _LIBCPP_DEBUG2 + __get_db()->__insert_c(this); +#endif  }    #endif // _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS @@ -1220,7 +1319,7 @@  typename vector<_Tp, _Allocator>::iterator  vector<_Tp, _Allocator>::__make_iter(pointer __p) _NOEXCEPT  { -#ifdef _LIBCPP_DEBUG +#ifdef _LIBCPP_DEBUG2  return iterator(this, __p);  #else  return iterator(__p); @@ -1232,7 +1331,7 @@  typename vector<_Tp, _Allocator>::const_iterator  vector<_Tp, _Allocator>::__make_iter(const_pointer __p) const _NOEXCEPT  { -#ifdef _LIBCPP_DEBUG +#ifdef _LIBCPP_DEBUG2  return const_iterator(this, __p);  #else  return const_iterator(__p); @@ -1276,9 +1375,7 @@  typename vector<_Tp, _Allocator>::reference  vector<_Tp, _Allocator>::operator[](size_type __n)  { -#ifdef _LIBCPP_DEBUG - assert(__n < size()); -#endif + _LIBCPP_ASSERT(__n < size(), "vector[] index out of bounds");  return this->__begin_[__n];  }   @@ -1287,9 +1384,7 @@  typename vector<_Tp, _Allocator>::const_reference  vector<_Tp, _Allocator>::operator[](size_type __n) const  { -#ifdef _LIBCPP_DEBUG - assert(__n < size()); -#endif + _LIBCPP_ASSERT(__n < size(), "vector[] index out of bounds");  return this->__begin_[__n];  }   @@ -1417,6 +1512,7 @@  void  vector<_Tp, _Allocator>::pop_back()  { + _LIBCPP_ASSERT(!empty(), "vector::pop_back called for empty vector");  this->__destruct_at_end(this->__end_ - 1);  }   @@ -1425,6 +1521,9 @@  typename vector<_Tp, _Allocator>::iterator  vector<_Tp, _Allocator>::erase(const_iterator __position)  { + _LIBCPP_ASSERT(__get_const_db()->__find_c_from_i(&__position) == this, + "vector::erase(iterator) called with an iterator not" + " referring to this vector");  pointer __p = const_cast<pointer>(&*__position);  iterator __r = __make_iter(__p);  this->__destruct_at_end(_VSTD::move(__p + 1, this->__end_, __p)); @@ -1435,6 +1534,10 @@  typename vector<_Tp, _Allocator>::iterator  vector<_Tp, _Allocator>::erase(const_iterator __first, const_iterator __last)  { + _LIBCPP_ASSERT(__get_const_db()->__find_c_from_i(&__first) == this, + "vector::erase(iterator, iterator) called with an iterator not" + " referring to this vector"); + _LIBCPP_ASSERT(__first <= __last, "vector::erase(first, last) called with invalid range");  pointer __p = this->__begin_ + (__first - begin());  iterator __r = __make_iter(__p);  this->__destruct_at_end(_VSTD::move(__p + (__last - __first), this->__end_, __p)); @@ -1458,6 +1561,9 @@  typename vector<_Tp, _Allocator>::iterator  vector<_Tp, _Allocator>::insert(const_iterator __position, const_reference __x)  { + _LIBCPP_ASSERT(__get_const_db()->__find_c_from_i(&__position) == this, + "vector::insert(iterator, x) called with an iterator not" + " referring to this vector");  pointer __p = this->__begin_ + (__position - begin());  if (this->__end_ < this->__end_cap())  { @@ -1492,6 +1598,9 @@  typename vector<_Tp, _Allocator>::iterator  vector<_Tp, _Allocator>::insert(const_iterator __position, value_type&& __x)  { + _LIBCPP_ASSERT(__get_const_db()->__find_c_from_i(&__position) == this, + "vector::insert(iterator, x) called with an iterator not" + " referring to this vector");  pointer __p = this->__begin_ + (__position - begin());  if (this->__end_ < this->__end_cap())  { @@ -1525,6 +1634,9 @@  typename vector<_Tp, _Allocator>::iterator  vector<_Tp, _Allocator>::emplace(const_iterator __position, _Args&&... __args)  { + _LIBCPP_ASSERT(__get_const_db()->__find_c_from_i(&__position) == this, + "vector::emplace(iterator, x) called with an iterator not" + " referring to this vector");  pointer __p = this->__begin_ + (__position - begin());  if (this->__end_ < this->__end_cap())  { @@ -1558,6 +1670,9 @@  typename vector<_Tp, _Allocator>::iterator  vector<_Tp, _Allocator>::insert(const_iterator __position, size_type __n, const_reference __x)  { + _LIBCPP_ASSERT(__get_const_db()->__find_c_from_i(&__position) == this, + "vector::insert(iterator, n, x) called with an iterator not" + " referring to this vector");  pointer __p = this->__begin_ + (__position - begin());  if (__n > 0)  { @@ -1601,6 +1716,9 @@  >::type  vector<_Tp, _Allocator>::insert(const_iterator __position, _InputIterator __first, _InputIterator __last)  { + _LIBCPP_ASSERT(__get_const_db()->__find_c_from_i(&__position) == this, + "vector::insert(iterator, range) called with an iterator not" + " referring to this vector");  difference_type __off = __position - begin();  pointer __p = this->__begin_ + __off;  allocator_type& __a = this->__alloc(); @@ -1648,6 +1766,9 @@  >::type  vector<_Tp, _Allocator>::insert(const_iterator __position, _ForwardIterator __first, _ForwardIterator __last)  { + _LIBCPP_ASSERT(__get_const_db()->__find_c_from_i(&__position) == this, + "vector::insert(iterator, range) called with an iterator not" + " referring to this vector");  pointer __p = this->__begin_ + (__position - begin());  difference_type __n = _VSTD::distance(__first, __last);  if (__n > 0) @@ -1710,13 +1831,16 @@  _NOEXCEPT_(!__alloc_traits::propagate_on_container_swap::value ||  __is_nothrow_swappable<allocator_type>::value)  { + _LIBCPP_ASSERT(__alloc_traits::propagate_on_container_swap::value || + this->__alloc() == __x.__alloc(), + "vector::swap: Either propagate_on_container_swap must be true" + " or the allocators must compare equal");  _VSTD::swap(this->__begin_, __x.__begin_);  _VSTD::swap(this->__end_, __x.__end_);  _VSTD::swap(this->__end_cap(), __x.__end_cap());  __base::__swap_alloc(this->__alloc(), __x.__alloc()); -#ifdef _LIBCPP_DEBUG - iterator::swap(this, &__x); - const_iterator::swap(this, &__x); +#ifdef _LIBCPP_DEBUG2 + __get_db()->swap(this, &__x);  #endif // _LIBCPP_DEBUG  }   @@ -1741,16 +1865,49 @@  return true;  }   +#ifdef _LIBCPP_DEBUG2 +  template <class _Tp, class _Allocator> -#ifndef _LIBCPP_DEBUG +bool +vector<_Tp, _Allocator>::__dereferenceable(const const_iterator* __i) const +{ + return this->__begin_ <= __i->base() && __i->base() < this->__end_; +} + +template <class _Tp, class _Allocator> +bool +vector<_Tp, _Allocator>::__decrementable(const const_iterator* __i) const +{ + return this->__begin_ < __i->base() && __i->base() <= this->__end_; +} + +template <class _Tp, class _Allocator> +bool +vector<_Tp, _Allocator>::__addable(const const_iterator* __i, ptrdiff_t __n) const +{ + const_pointer __p = __i->base() + __n; + return this->__begin_ <= __p && __p <= this->__end_; +} + +template <class _Tp, class _Allocator> +bool +vector<_Tp, _Allocator>::__subscriptable(const const_iterator* __i, ptrdiff_t __n) const +{ + const_pointer __p = __i->base() + __n; + return this->__begin_ <= __p && __p < this->__end_; +} + +#endif // LIBCPP_DEBUG2 + +template <class _Tp, class _Allocator>  _LIBCPP_INLINE_VISIBILITY inline -#endif  void  vector<_Tp, _Allocator>::__invalidate_all_iterators()  { -#ifdef _LIBCPP_DEBUG - iterator::__remove_all(this); - const_iterator::__remove_all(this); +#ifdef _LIBCPP_DEBUG2 + __get_db()->__invalidate_all(this); +// iterator::__remove_all(this); +// const_iterator::__remove_all(this);  #endif // _LIBCPP_DEBUG  }