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<InputIterator Iter, Predicate<auto, Iter::value_type> Pred> 13// requires CopyConstructible<Pred> 14// Iter::difference_type 15// count_if(Iter first, Iter last, Pred pred); 16 17#include <algorithm> 18#include <functional> 19#include <cassert> 20 21#include "test_iterators.h" 22 23int main() 24{ 25 int ia[] = {0, 1, 2, 2, 0, 1, 2, 3}; 26 const unsigned sa = sizeof(ia)/sizeof(ia[0]); 27 assert(std::count_if(input_iterator<const int*>(ia), 28 input_iterator<const int*>(ia + sa), 29 std::bind2nd(std::equal_to<int>(),2)) == 3); 30 assert(std::count_if(input_iterator<const int*>(ia), 31 input_iterator<const int*>(ia + sa), 32 std::bind2nd(std::equal_to<int>(),7)) == 0); 33 assert(std::count_if(input_iterator<const int*>(ia), 34 input_iterator<const int*>(ia), 35 std::bind2nd(std::equal_to<int>(),2)) == 0); 36} 37