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<ForwardIterator Iter> 13 // requires LessThanComparable<Iter::value_type> 14 // Iter 15 // min_element(Iter first, Iter last); 16 17 #include <algorithm> 18 #include <cassert> 19 20 #include "test_iterators.h" 21 22 template <class Iter> 23 void 24 test(Iter first, Iter last) 25 { 26 Iter i = std::min_element(first, last); 27 if (first != last) 28 { 29 for (Iter j = first; j != last; ++j) 30 assert(!(*j < *i)); 31 } 32 else 33 assert(i == last); 34 } 35 36 template <class Iter> 37 void 38 test(unsigned N) 39 { 40 int* a = new int[N]; 41 for (int i = 0; i < N; ++i) 42 a[i] = i; 43 std::random_shuffle(a, a+N); 44 test(Iter(a), Iter(a+N)); 45 delete [] a; 46 } 47 48 template <class Iter> 49 void 50 test() 51 { 52 test<Iter>(0); 53 test<Iter>(1); 54 test<Iter>(2); 55 test<Iter>(3); 56 test<Iter>(10); 57 test<Iter>(1000); 58 } 59 60 int main() 61 { 62 test<forward_iterator<const int*> >(); 63 test<bidirectional_iterator<const int*> >(); 64 test<random_access_iterator<const int*> >(); 65 test<const int*>(); 66 } 67
