iterators.pass.cpp revision f5256e16dfc425c1d466f6308d4026d529ce9e0b 
1//===----------------------------------------------------------------------===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10// <forward_list>
11
12// iterator       begin();
13// iterator       end();
14// const_iterator begin()  const;
15// const_iterator end()    const;
16// const_iterator cbegin() const;
17// const_iterator cend()   const;
18
19#include <forward_list>
20#include <cassert>
21#include <iterator>
22
23int main()
24{
25    {
26        typedef int T;
27        typedef std::forward_list<T> C;
28        C c;
29        C::iterator i = c.begin();
30        C::iterator j = c.end();
31        assert(std::distance(i, j) == 0);
32        assert(i == j);
33    }
34    {
35        typedef int T;
36        typedef std::forward_list<T> C;
37        const C c;
38        C::const_iterator i = c.begin();
39        C::const_iterator j = c.end();
40        assert(std::distance(i, j) == 0);
41        assert(i == j);
42    }
43    {
44        typedef int T;
45        typedef std::forward_list<T> C;
46        C c;
47        C::const_iterator i = c.cbegin();
48        C::const_iterator j = c.cend();
49        assert(std::distance(i, j) == 0);
50        assert(i == j);
51        assert(i == c.end());
52    }
53    {
54        typedef int T;
55        typedef std::forward_list<T> C;
56        const T t[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9};
57        C c(std::begin(t), std::end(t));
58        C::iterator i = c.begin();
59        assert(*i == 0);
60        ++i;
61        assert(*i == 1);
62        *i = 10;
63        assert(*i == 10);
64        assert(std::distance(c.begin(), c.end()) == 10);
65    }
66    {
67        typedef int T;
68        typedef std::forward_list<T> C;
69        C::iterator i;
70    }
71}
72