可以当作部分 pair 和 tuple 的替用品,或者替代原生数组 # 一些其他容器 >bitset >basic_string 另外,可以参阅C 的字符串函数 # IO >cpp 风格 IO 可以了解 stringstream 类,以及 输入/输出操纵符 >C 风格 IO +fopen +freopen +sscanf +sprintf #算法库 >sort >unique >re
const_reverse_iteratorstd::reverse_iterator<const_iterator> Data members constexprsize_typenpos[static]the special valuesize_type(-1), its exact meaning depends on the context Member functions (constructor) constructs abasic_string (public member function) ...
#include <algorithm>#include <array>#include <iostream>#include <string>intmain(){std::strings{"ABCDEF"};std::cout<<s<<" → ";std::ranges::reverse(s.begin(), s.end());std::cout<<s<<" → ";std::ranges::reverse(s);std::cout<<s<<" │ ";std::arraya{1,2,3,4,5};for...
creates a std::reverse_iterator of type inferred from the argument (function template) back_insert_iterator iterator adaptor for insertion at the end of a container (class template) back_inserter creates a std::back_insert_iterator of type inferred from the argument (function template)...
reverse_iteratorconst_reverse_iterator size_typestd::size_t difference_typestd::ptrdiff_t Note:iteratorandconst_iteratorare the same type because string views are views into constant character sequences. All requirements on the iterator types of aContainerapplies to theiteratorandconst_iteratortypes of...
{1, 2, 3}; // double braces never required after =std::array<std::string, 2> a3 = { std::string("a"), "b" };// container operations are supportedstd::sort(a1.begin(), a1.end());std::reverse_copy(a2.begin(), a2.end(),std::ostream_iterator<int>(std::cout, " "));...
If the array holding the first string isn't large enough to hold both strings, strcat will overflow the boundaries of the array. char string1[100] = "Hello "; // string1 has enough capacity for strcat char string2[] = "World!"; strcat(string1, string2); cout << string1 << endl...
std::multimap<int,std::string>a={{3,"BMW"},{1,"Cruze"},{2,"City"},{1,"Sail"}};autob=a.equal_range(2);for(autox=std::make_reverse_iterator(b.second);x!=a.rend();++x){std::cout<<x->first<<" --> "<<x->second<<std::endl;}return0;} ...
returns a reverse iterator to the beginning (public member function) rendcrend (C++11) returns a reverse iterator to the end (public member function) Capacity empty checks whether the container is empty (public member function) size returns the number of elements ...
(std::stringa,intb){returnstd::move(a)+'-'+std::to_string(b);};std::strings=std::accumulate(std::next(v.begin()), v.end(),std::to_string(v[0]),// start with first elementdash_fold);// Right fold using reverse iteratorsstd::stringrs=std::accumulate(std::next(v.rbegin()...