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#include "test_macros.h"
11
12#if TEST_STD_VER < 11
13#error
14#else
15
16// <iterator>
17// template <class C> auto begin(C& c) -> decltype(c.begin());
18// template <class C> auto begin(const C& c) -> decltype(c.begin());
19// template <class C> auto end(C& c) -> decltype(c.end());
20// template <class C> auto end(const C& c) -> decltype(c.end());
21// template <class E> reverse_iterator<const E*> rbegin(initializer_list<E> il);
22// template <class E> reverse_iterator<const E*> rend(initializer_list<E> il);
23
24
25#include <iterator>
26#include <cassert>
27
28namespace Foo {
29    struct FakeContainer {};
30    typedef int FakeIter;
31
32    FakeIter begin(const FakeContainer &)   { return 1; }
33    FakeIter end  (const FakeContainer &)   { return 2; }
34    FakeIter rbegin(const FakeContainer &)  { return 3; }
35    FakeIter rend  (const FakeContainer &)  { return 4; }
36
37    FakeIter cbegin(const FakeContainer &)  { return 11; }
38    FakeIter cend  (const FakeContainer &)  { return 12; }
39    FakeIter crbegin(const FakeContainer &) { return 13; }
40    FakeIter crend  (const FakeContainer &) { return 14; }
41}
42
43
44int main(){
45// Bug #28927 - shouldn't find these via ADL
46    TEST_IGNORE_NODISCARD  std::cbegin (Foo::FakeContainer());
47    TEST_IGNORE_NODISCARD  std::cend   (Foo::FakeContainer());
48    TEST_IGNORE_NODISCARD  std::crbegin(Foo::FakeContainer());
49    TEST_IGNORE_NODISCARD  std::crend  (Foo::FakeContainer());
50}
51#endif
52