std::experimental::search
From cppreference.com
< cpp | experimental
Defined in header <experimental/algorithm>
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template< class ForwardIterator, class Searcher > ForwardIterator search( ForwardIterator first, ForwardIterator last, |
(library fundamentals TS) | |
Searches the sequence [
first,
last)
for the pattern specified in the constructor of searcher.
Effectively executes searcher(first, last). |
(until C++17) |
Effectively executes searcher(first, last).first. |
(since C++17) |
Searcher
need not be CopyConstructible.
The standard library provides the following searchers:
standard C++ library search algorithm implementation (class template) | |
Boyer-Moore search algorithm implementation (class template) | |
Boyer-Moore-Horspool search algorithm implementation (class template) |
Contents |
[edit] Parameters
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[edit] Return value
Returns the result of searcher.operator(), that is, an iterator to the location at which the substring is found or a copy of last if it was not found.
[edit] Complexity
Depends on the searcher.
[edit] Example
Run this code
#include <experimental/algorithm> #include <experimental/functional> #include <iostream> #include <string> int main() { std::string in = "Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed " "do eiusmod tempor incididunt ut labore et dolore magna aliqua"; std::string needle = "pisci"; auto it = std::experimental::search(in.begin(), in.end(), std::experimental::make_boyer_moore_searcher( needle.begin(), needle.end())); if (it != in.end()) std::cout << "The string " << needle << " found at offset " << it - in.begin() << '\n'; else std::cout << "The string " << needle << " not found\n"; }
Output:
The string pisci found at offset 43
[edit] See also
searches for the first occurrence of a range of elements (function template) |