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(
Thestd::array::max_sizefunction returns the maximum number of elements that the array can hold. This function is useful for determining the fixed size of astd::array, which is known at compile time. Forstd::array, the value returned bymax_size()is always equal to the size of the array...
constexpr size_type max_size() const noexcept; //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 fill fill函数原型如下所示: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 void fill( const T& value ); /...
max_size max_size函数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())。其函数声明为: constexprsize_typemax_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 ...
max_size max_size函数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())。其函数声明为: constexprsize_typemax_size()constnoexcept;//C++11 起 注:因为每个std::array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) ...
constexpr const_reference at( size_type pos ) const; //C++14 起 其具体用法如下: std::array<int,3> data = { 1, 2, 3}; std::cout<<data.at(1)<<std::endl; //2 data.at(1)=8; //此时data={1, 8, 3} data.at(6) = 6; //越界,抛出std::out_of_range异常 ...
cout <<"size of array:"<< arrCh.size() <<"\n";///< output: 10cout <<"max_size of array"<< arrCh.max_size() <<"\n";///< output: 10cout<<"\n"; array<int, 0> first; array<int, 5> second; cout <<"first array:"<< first.empty() <<"\n";///< output: 1, mea...
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)(until C++20)(C++20) ...
std::array<T,N>::max_size std::array<T,N>::swap std::get(std::array) std::swap(std::array) std::to_array operator==,!=,<,<=,>,>=,<=>(std::array) std::tuple_size(std::array) std::tuple_element<std::array> std::array 的推导指引 std::vector std::map std::unordered...
constexpr std::array<std::array<size_t,2>,2> src {{ {1,2}, {3,4} }}; auto dst0 = tmpl_func_std_ary_dcp<src>(); auto dst1 = tmpl_func_std_ary_dcp<src>(); dst1[0][0] = 999; std::cout << "dst0: " << dst0[0][0] << std::endl; //1 ...