std::vector<T,Allocator>::max_sizeC++ 容器库 std::vector size_type max_size() const; (C++11 起为 noexcept) (C++20 起为 constexpr) 返回容器根据系统或库实现限制而可保有的元素最大数量,即对于最大容器的 std::distance(begin(), end())。
vector<long>q;std::cout.imbue(std::locale("en_US.UTF-8"));std::cout<<std::uppercase<<"p.max_size() = "<<std::dec<<p.max_size()<<" = 0x"<<std::hex<<p.max_size()<<'\n'<<"q.max_size() = "<<std::dec<<q.max_size()<<" = 0x"<<std::hex<<q.max_size()<...
问无法为低于max_size的大小创建大于max_size()的std::vectorENSTL 中的 vector 存在头部及中部操作...
问无法分配小于std::vector::max_size()的大型cpp std：：载体EN版权声明：本文内容由互联网用户自发...
std::vector<T,Allocator>::rend, std::vector<T,Allocator>::crend std::vector<T,Allocator>::empty std::vector<T,Allocator>::size std::vector<T,Allocator>::max_size std::vector<T,Allocator>::reserve std::vector<T,Allocator>::capacity std::vector<T,Allocator>::shrink_to_fit std::vecto...
max_size capacity reserve shrink_to_fit 2.2.5 修改器 clear insert emplace earse push_back emplace_back pop_back resize swap 2.2 非成员函数 operator==,!=,<,<=,>,>=,<=>(std::vector) std::swap(std::vector) std::erase, std::erase_if (std::vector) ...
std::vector::end std::vector::erase std::vector::front std::vector::get_allocator std::vector::insert std::vector::max_size std::vector::operator[] std::vector::pop_back std::vector::push_back std::vector::rbegin std::vector::rend std::vector::reserve std::vector::resize std::...
_Vector_impl 实现比较简单,三个核心成员变量,作为 vector 的底层表达 _M_start 元素空间起始地址,data() 返回的地址 _M_finish 元空间结束地址, 和 size() 相关 _M_end_of_storage 元素可用空间结束地址,和 capacity() 相关 struct_Vector_impl:public_Tp_alloc_type { ...
max_size() //见 gcc 5.4.0 std::vector,位于stl_vector.h 657 /** Returns the size() of the largest possible %vector. */ 658 size_type 659 max_size() const _GLIBCXX_NOEXCEPT 660 { return _Alloc_traits::max_size(_M_get_Tp_allocator()); } 实际上实现的方式是: //见 gcc 5.4....
push_back(2); std::vector<int>::iterator begin_ite = vec.begin(); std::vector<int>::iterator end_ite = vec.end(); std::cout << "Size of vec: " << vec.size() << std::endl; std::cout << "Max size of vec: " << vec.max_size() << std::endl; std::cout << "...