111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert//===----------------------------------------------------------------------===// 211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// 311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// The LLVM Compiler Infrastructure 411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// 511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// This file is dual licensed under the MIT and the University of Illinois Open 611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// Source Licenses. See LICENSE.TXT for details. 711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// 811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert//===----------------------------------------------------------------------===// 911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 1011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// <algorithm> 1111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 1211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// template<ForwardIterator Iter> 1311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// requires LessThanComparable<Iter::value_type> 1411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// Iter 1511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// max_element(Iter first, Iter last); 1611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 1711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#include <algorithm> 1811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#include <cassert> 1911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 2011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#include "test_iterators.h" 2111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 2211cd02dfb91661c65134cac258cf5924270e9d2Dan Alberttemplate <class Iter> 2311cd02dfb91661c65134cac258cf5924270e9d2Dan Albertvoid 2411cd02dfb91661c65134cac258cf5924270e9d2Dan Alberttest(Iter first, Iter last) 2511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert{ 2611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert Iter i = std::max_element(first, last); 2711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert if (first != last) 2811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert { 2911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert for (Iter j = first; j != last; ++j) 3011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert assert(!(*i < *j)); 3111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert } 3211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert else 3311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert assert(i == last); 3411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert} 3511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 3611cd02dfb91661c65134cac258cf5924270e9d2Dan Alberttemplate <class Iter> 3711cd02dfb91661c65134cac258cf5924270e9d2Dan Albertvoid 3811cd02dfb91661c65134cac258cf5924270e9d2Dan Alberttest(unsigned N) 3911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert{ 4011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert int* a = new int[N]; 4111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert for (int i = 0; i < N; ++i) 4211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert a[i] = i; 4311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert std::random_shuffle(a, a+N); 4411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert test(Iter(a), Iter(a+N)); 4511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert delete [] a; 4611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert} 4711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 4811cd02dfb91661c65134cac258cf5924270e9d2Dan Alberttemplate <class Iter> 4911cd02dfb91661c65134cac258cf5924270e9d2Dan Albertvoid 5011cd02dfb91661c65134cac258cf5924270e9d2Dan Alberttest() 5111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert{ 5211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert test<Iter>(0); 5311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert test<Iter>(1); 5411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert test<Iter>(2); 5511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert test<Iter>(3); 5611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert test<Iter>(10); 5711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert test<Iter>(1000); 5811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert} 5911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 6011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#if __cplusplus >= 201402L 6111cd02dfb91661c65134cac258cf5924270e9d2Dan Albertconstexpr int il[] = { 2, 4, 6, 8, 7, 5, 3, 1 }; 6211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#endif 6311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 6411cd02dfb91661c65134cac258cf5924270e9d2Dan Albertvoid constexpr_test() 6511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert{ 6611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#if __cplusplus >= 201402L 6711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert constexpr auto p = std::max_element(il,il+8); 6811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert static_assert ( *p == 8, "" ); 6911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#endif 7011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert} 7111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 7211cd02dfb91661c65134cac258cf5924270e9d2Dan Albertint main() 7311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert{ 7411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert test<forward_iterator<const int*> >(); 7511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert test<bidirectional_iterator<const int*> >(); 7611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert test<random_access_iterator<const int*> >(); 7711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert test<const int*>(); 7811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 7911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert constexpr_test (); 8011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert} 81