1 //===----------------------------------------------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is dual licensed under the MIT and the University of Illinois Open 6 // Source Licenses. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 // <algorithm> 11 12 // template<class ForwardIterator, class Searcher> 13 // ForwardIterator search(ForwardIterator first, ForwardIterator last, 14 // const Searcher& searcher); 15 // 16 // returns searcher.operator(first, last) 17 // 18 19 #include <experimental/algorithm> 20 #include <cassert> 21 22 #include "test_iterators.h" 23 24 int searcher_called = 0; 25 26 struct MySearcher { 27 template <typename Iterator> 28 Iterator operator() ( Iterator b, Iterator /*e*/) const 29 { 30 ++searcher_called; 31 return b; 32 } 33 }; 34 35 36 int main() { 37 typedef int * RI; 38 static_assert(std::is_same<RI, decltype(std::experimental::search(RI(), RI(), MySearcher()))>::value, "" ); 39 40 RI it{nullptr}; 41 assert(it == std::experimental::search(it, it, MySearcher())); 42 assert(searcher_called == 1); 43 } 44
