llvm-project/libcxx/test/algorithms/alg.nonmodifying/alg.count/count.pass.cpp

33 lines
1.1 KiB
C++

//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <algorithm>
// template<InputIterator Iter, class T>
// requires HasEqualTo<Iter::value_type, T>
// Iter::difference_type
// count(Iter first, Iter last, const T& value);
#include <algorithm>
#include <cassert>
#include "../../iterators.h"
int main()
{
int ia[] = {0, 1, 2, 2, 0, 1, 2, 3};
const unsigned sa = sizeof(ia)/sizeof(ia[0]);
assert(std::count(input_iterator<const int*>(ia),
input_iterator<const int*>(ia + sa), 2) == 3);
assert(std::count(input_iterator<const int*>(ia),
input_iterator<const int*>(ia + sa), 7) == 0);
assert(std::count(input_iterator<const int*>(ia),
input_iterator<const int*>(ia), 2) == 0);
}