cxx/test/algorithms/alg.nonmodifying/alg.find/find_if.pass.cpp

36 lines
1.2 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, Predicate<auto, Iter::value_type> Pred>
// requires CopyConstructible<Pred>
// Iter
// find_if(Iter first, Iter last, Pred pred);
#include <algorithm>
#include <functional>
#include <cassert>
#include "test_iterators.h"
int main()
{
int ia[] = {0, 1, 2, 3, 4, 5};
const unsigned s = sizeof(ia)/sizeof(ia[0]);
input_iterator<const int*> r = std::find_if(input_iterator<const int*>(ia),
input_iterator<const int*>(ia+s),
std::bind2nd(std::equal_to<int>(), 3));
assert(*r == 3);
r = std::find_if(input_iterator<const int*>(ia),
input_iterator<const int*>(ia+s),
std::bind2nd(std::equal_to<int>(), 10));
assert(r == input_iterator<const int*>(ia+s));
}