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 // <iomanip>
11 
12 // template <class charT> T10 put_time(const struct tm* tmb, const charT* fmt);
13 
14 #include <iomanip>
15 #include <cassert>
16 
17 #include "platform_support.h" // locale name macros
18 
19 template <class CharT>
20 class testbuf
21     : public std::basic_streambuf<CharT>
22 {
23     typedef std::basic_streambuf<CharT> base;
24     std::basic_string<CharT> str_;
25 public:
testbuf()26     testbuf()
27     {
28     }
29 
str() const30     std::basic_string<CharT> str() const
31         {return std::basic_string<CharT>(base::pbase(), base::pptr());}
32 
33 protected:
34 
35     virtual typename base::int_type
overflow(typename base::int_type __c=base::traits_type::eof ())36         overflow(typename base::int_type __c = base::traits_type::eof())
37         {
38             if (__c != base::traits_type::eof())
39             {
40                 int n = str_.size();
41                 str_.push_back(__c);
42                 str_.resize(str_.capacity());
43                 base::setp(const_cast<CharT*>(str_.data()),
44                            const_cast<CharT*>(str_.data() + str_.size()));
45                 base::pbump(n+1);
46             }
47             return __c;
48         }
49 };
50 
main()51 int main()
52 {
53     {
54         testbuf<char> sb;
55         std::ostream os(&sb);
56         os.imbue(std::locale(LOCALE_en_US_UTF_8));
57         std::tm t = {0};
58         t.tm_sec = 59;
59         t.tm_min = 55;
60         t.tm_hour = 23;
61         t.tm_mday = 31;
62         t.tm_mon = 11;
63         t.tm_year = 161;
64         t.tm_wday = 6;
65         t.tm_isdst = 0;
66         os << std::put_time(&t, "%a %b %d %H:%M:%S %Y");
67         assert(sb.str() == "Sat Dec 31 23:55:59 2061");
68     }
69     {
70         testbuf<wchar_t> sb;
71         std::wostream os(&sb);
72         os.imbue(std::locale(LOCALE_en_US_UTF_8));
73         std::tm t = {0};
74         t.tm_sec = 59;
75         t.tm_min = 55;
76         t.tm_hour = 23;
77         t.tm_mday = 31;
78         t.tm_mon = 11;
79         t.tm_year = 161;
80         t.tm_wday = 6;
81         os << std::put_time(&t, L"%a %b %d %H:%M:%S %Y");
82         assert(sb.str() == L"Sat Dec 31 23:55:59 2061");
83     }
84 }
85