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 返回值 最大元素数。
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...
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( ...
=,<,<=,>,>=,<=>(std::array)非成员函数用来比较两个array的大小,相关函数及函数声明如下: //1. ==//返回值:在 array 内容相等时返回 true,否则返回 falsetemplate<classT, std::size_tN >booloperator==(conststd::array<T, N>& lhs,conststd::array<T, N>& rhs );//C++20 前template<clas...
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...
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...
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<T,N>::rbegin, std::array<T,N>::crbegin std::array<T,N>::rend, std::array<T,N>::crend std::array<T,N>::empty std::array<T,N>::size std::array<T,N>::max_size std::array<T,N>::swap std::get(std::array) std::swap(std::array) std::to_array operator=...
#include <iostream>#include <locale>#include <array>intmain(){std::array<char,10>q;std::cout.imbue(std::locale("en_US.UTF-8"));std::cout<<"Maximum size of the std::array is "<<q.max_size()<<'\n';} Output: Maximum size of the std::array is 10 ...
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