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 // <locale>
11 
12 // class num_get<charT, InputIterator>
13 
14 // iter_type get(iter_type in, iter_type end, ios_base&,
15 //               ios_base::iostate& err, unsigned short& v) const;
16 
17 #include <locale>
18 #include <ios>
19 #include <cassert>
20 #include <streambuf>
21 #include "test_iterators.h"
22 
23 typedef std::num_get<char, input_iterator<const char*> > F;
24 
25 class my_facet
26     : public F
27 {
28 public:
29     explicit my_facet(std::size_t refs = 0)
30         : F(refs) {}
31 };
32 
33 class my_numpunct
34     : public std::numpunct<char>
35 {
36 public:
37     my_numpunct() : std::numpunct<char>() {}
38 
39 protected:
40     virtual char_type do_thousands_sep() const {return '_';}
41     virtual std::string do_grouping() const {return std::string("\1\2\3");}
42 };
43 
44 int main()
45 {
46     const my_facet f(1);
47     std::ios ios(0);
48     unsigned short v = -1;
49     {
50         const char str[] = "0";
51         std::ios_base::iostate err = ios.goodbit;
52         input_iterator<const char*> iter =
53             f.get(input_iterator<const char*>(str),
54                   input_iterator<const char*>(str+sizeof(str)),
55                   ios, err, v);
56         assert(iter.base() == str+sizeof(str)-1);
57         assert(err == ios.goodbit);
58         assert(v == 0);
59     }
60     {
61         const char str[] = "1";
62         std::ios_base::iostate err = ios.goodbit;
63         input_iterator<const char*> iter =
64             f.get(input_iterator<const char*>(str),
65                   input_iterator<const char*>(str+sizeof(str)),
66                   ios, err, v);
67         assert(iter.base() == str+sizeof(str)-1);
68         assert(err == ios.goodbit);
69         assert(v == 1);
70     }
71     hex(ios);
72     {
73         const char str[] = "0xFFFF";
74         std::ios_base::iostate err = ios.goodbit;
75         input_iterator<const char*> iter =
76             f.get(input_iterator<const char*>(str),
77                   input_iterator<const char*>(str+sizeof(str)),
78                   ios, err, v);
79         assert(iter.base() == str+sizeof(str)-1);
80         assert(err == ios.goodbit);
81         assert(v == 0xFFFF);
82     }
83 }
84