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 // UNSUPPORTED: c++98, c++03
11
12 // <algorithm>
13
14 // template <class PopulationIterator, class SampleIterator, class Distance,
15 // class UniformRandomNumberGenerator>
16 // SampleIterator sample(PopulationIterator first, PopulationIterator last,
17 // SampleIterator out, Distance n,
18 // UniformRandomNumberGenerator &&g);
19
20 #include <experimental/algorithm>
21 #include <random>
22 #include <cassert>
23
24 #include "test_iterators.h"
25
test()26 template <class PopulationIterator, class SampleIterator> void test() {
27 int ia[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
28 const unsigned is = sizeof(ia) / sizeof(ia[0]);
29 const unsigned os = 4;
30 int oa[os];
31 std::minstd_rand g;
32 std::experimental::sample(PopulationIterator(ia), PopulationIterator(ia + is),
33 SampleIterator(oa), os, g);
34 }
35
main()36 int main() {
37 // expected-error@algorithm:* {{static_assert failed "SampleIterator must meet the requirements of RandomAccessIterator"}}
38 // expected-error@algorithm:* 2 {{does not provide a subscript operator}}
39 // expected-error@algorithm:* {{invalid operands}}
40 test<input_iterator<int *>, output_iterator<int *> >();
41 }
42