find (1) template<classInputIt,classT=typenamestd::iterator_traits<InputIt>::value_type>constexprInputIt find(InputIt first, InputIt last,constT&value){for(;first!=last;++first)if(*first==value)returnfirst;retur
find_if, std::experimental::ranges::find_if_not From cppreference.com < cpp | experimental | ranges C++ Compiler support Freestanding and hosted Language Standard library Standard library headers Named requirements Feature test macros (C++20) Language support library Concepts library (C++20)...
begin(), quote.end(), searcher); if (it == quote.end()) std::cout << "not found\n"; else std::cout << "found at offset " << std::distance(quote.begin(), it) << '\n'; } } Output: The string "pisci" found at offset 43 The string "Pisci" not found...
std::all_of,std::any_of,std::none_ofTake an array of elements and a predicate as an input. Call predicate on individual input elements, and return true if for all/any/none elements, predicate returns true. std::find_ifTake sequence of elements, and a predicate. Return first element in...
External Links−Non-ANSI/ISO Libraries−Index−std Symbol Index C reference C89,C95,C99,C11,C17,C23│Compiler supportC99,C23 Language Basic concepts Keywords Preprocessor Expressions Declaration Initialization Functions Statements Headers Type support ...
{std::cout<<"last subsequence is at: "<<std::distance(v.begin(), result)<<"\n";}std::vector<int>t2{4,5,6};result=std::find_end(v.begin(), v.end(), t2.begin(), t2.end());if(result==v.end()){std::cout<<"subsequence not found\n";}else{std::cout<<"last ...
autopositionOf42 =std::find(myCollection,42); 这就是有关范围的提案在C++ 20里的目标(同时还有许多其他功能)。但这个功能即使在C++ 98中也很容易模拟,只需要将调用STL算法的语句包裹在一个接受范围的函数中即可: template<typenameRange,typenameValue> ...
std::swap(std::set) specializes thestd::swapalgorithm (function template) erase_if(std::set) (C++20) erases all elements satisfying specific criteria (function template) Deduction guides (since C++17) Notes The member typesiteratorandconst_iteratormay be aliases to the same type. This means de...
#include <algorithm>#include <iostream>#include <vector>intmain(){std::vector<int>v={3,1,4};if(std::find(std::begin(v), std::end(v),5)!=std::end(v))std::cout<<"Found a 5 in vector v!\n";intw[]={5,10,15};if(std::find(std::begin(w), std::end(w),5)!=std::...