forked from OSchip/llvm-project
77 lines
3.1 KiB
C++
77 lines
3.1 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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// <algorithm>
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// template<class ForwardIterator, class Predicate>
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// ForwardIterator
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// partition_point(ForwardIterator first, ForwardIterator last, Predicate pred);
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#include <algorithm>
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#include <cassert>
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#include "test_iterators.h"
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struct is_odd
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{
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bool operator()(const int& i) const {return i & 1;}
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};
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int main()
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{
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{
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const int ia[] = {2, 4, 6, 8, 10};
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assert(std::partition_point(forward_iterator<const int*>(std::begin(ia)),
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forward_iterator<const int*>(std::end(ia)),
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is_odd()) == forward_iterator<const int*>(ia));
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}
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{
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const int ia[] = {1, 2, 4, 6, 8};
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assert(std::partition_point(forward_iterator<const int*>(std::begin(ia)),
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forward_iterator<const int*>(std::end(ia)),
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is_odd()) == forward_iterator<const int*>(ia + 1));
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}
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{
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const int ia[] = {1, 3, 2, 4, 6};
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assert(std::partition_point(forward_iterator<const int*>(std::begin(ia)),
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forward_iterator<const int*>(std::end(ia)),
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is_odd()) == forward_iterator<const int*>(ia + 2));
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}
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{
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const int ia[] = {1, 3, 5, 2, 4, 6};
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assert(std::partition_point(forward_iterator<const int*>(std::begin(ia)),
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forward_iterator<const int*>(std::end(ia)),
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is_odd()) == forward_iterator<const int*>(ia + 3));
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}
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{
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const int ia[] = {1, 3, 5, 7, 2, 4};
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assert(std::partition_point(forward_iterator<const int*>(std::begin(ia)),
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forward_iterator<const int*>(std::end(ia)),
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is_odd()) == forward_iterator<const int*>(ia + 4));
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}
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{
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const int ia[] = {1, 3, 5, 7, 9, 2};
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assert(std::partition_point(forward_iterator<const int*>(std::begin(ia)),
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forward_iterator<const int*>(std::end(ia)),
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is_odd()) == forward_iterator<const int*>(ia + 5));
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}
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{
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const int ia[] = {1, 3, 5, 7, 9, 11};
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assert(std::partition_point(forward_iterator<const int*>(std::begin(ia)),
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forward_iterator<const int*>(std::end(ia)),
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is_odd()) == forward_iterator<const int*>(ia + 6));
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}
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{
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const int ia[] = {1, 3, 5, 2, 4, 6, 7};
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assert(std::partition_point(forward_iterator<const int*>(std::begin(ia)),
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forward_iterator<const int*>(std::begin(ia)),
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is_odd()) == forward_iterator<const int*>(ia));
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}
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}
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