std::array::max_size std::array::max_size constexpr size_type max_size(); (since C++11) (until C++14) constexpr size_type max_size() const; (since C++14) 返回容器由于系统或库实现限制而能够容纳的最大元素数,即std::distance(begin(), end())最大的集装箱。 参数 %280%29...
constexpr size_type max_size() const noexcept; (C++14 起) 返回根据系统或库实现限制的容器可保有的元素最大数量,即对于最大容器的 std::distance(begin(), end())。 参数 (无) 返回值 元素数量的最大值。 复杂度 常数。 注意 因为每个 std::array<T, N> 都是固定大小容器,故 max_size ...
其函数声明为：constexpr size_type max_size()constnoexcept; //C++11 起注：因为每个 std::array<T, N> 都是固定大小容器，故 max_size 返回的值等于 N （亦为size所返回的值）2.2.5 修改器fillfill函数原型如下所示：voidfill( const T& value ); //C++11 起， C++20 前constexprvoidfill( ...
array::rendarray::crend Capacity array::empty array::size array::max_size Modifiers array::fill array::swap Non-member functions get std::swap to_array (C++20) operator==operator!=operator<operator>operator<=operator>=operator<=> (until C++20)(until C++20)(until C++20)(until C++20)(unti...
std::array::data std::array::empty std::array::end std::array::fill std::array::front std::array::max_size std::array::operator[] std::array::rbegin std::array::rend std::array::size std::array::swap std::deque std::deque::assign std::deque::at std::deque::back std::dequ...
std::array::crbegin std::array::crend std::array::data std::array::empty std::array::end std::array::fill std::array::front std::array::max_size std::array::operator[] std::array::rbegin std::array::rend std::array::size std::array::swap std::deque std::deque::assign std:...
return(std::array<T,Extent>{}); } }; template<typename LeafT,size_t... Extents> using mxt = decltype(_mxt<LeafT,Extents...>()); 简单测试: using t = mxt<size_t,5,4,3,2>; std::cout<< sizeof(t) << std::endl; //960 ...
std::array<IDType,MAX_SUPPORTED_NODE_CNT> prev_descs; std::array<IDType,MAX_SUPPORTED_NODE_CNT> next_descs; /// 虽然额外存了一份, 但是可以根据 MAX_SUPPORTED_NODE_CNT 大小使用不同的 ID, 最差情况,比如用 unit32_t /// 内存耗费也和 std::list 一样 数据...
empty checks whether the container is empty (public member function) max_size returns the maximum possible number of elements (public member function) sizessize (C++17)(C++20) returns the size of a container or array (function template)
size_type max_size() const; Return maximum size Returns the maximum number of elements that thelistcontainer can hold. This is the maximum potentialsizethe container can reach due to known system or library implementation limitations, but the container is by no means guaranteed to be able to ...