put_time.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// <iomanip>
11
12// template <class charT> T10 put_time(const struct tm* tmb, const charT* fmt);
13
14#include <iomanip>
15#include <cassert>
16
17template <class CharT>
18class testbuf
19    : public std::basic_streambuf<CharT>
20{
21    typedef std::basic_streambuf<CharT> base;
22    std::basic_string<CharT> str_;
23public:
24    testbuf()
25    {
26    }
27
28    std::basic_string<CharT> str() const
29        {return std::basic_string<CharT>(base::pbase(), base::pptr());}
30
31protected:
32
33    virtual typename base::int_type
34        overflow(typename base::int_type __c = base::traits_type::eof())
35        {
36            if (__c != base::traits_type::eof())
37            {
38                int n = str_.size();
39                str_.push_back(__c);
40                str_.resize(str_.capacity());
41                base::setp(const_cast<CharT*>(str_.data()),
42                           const_cast<CharT*>(str_.data() + str_.size()));
43                base::pbump(n+1);
44            }
45            return __c;
46        }
47};
48
49int main()
50{
51    {
52        testbuf<char> sb;
53        std::ostream os(&sb);
54        os.imbue(std::locale("en_US"));
55        std::tm t = {0};
56        t.tm_sec = 59;
57        t.tm_min = 55;
58        t.tm_hour = 23;
59        t.tm_mday = 31;
60        t.tm_mon = 11;
61        t.tm_year = 161;
62        t.tm_wday = 6;
63        os << std::put_time(&t, "%c");
64        assert(sb.str() == "Sat Dec 31 23:55:59 2061");
65    }
66    {
67        testbuf<wchar_t> sb;
68        std::wostream os(&sb);
69        os.imbue(std::locale("en_US"));
70        std::tm t = {0};
71        t.tm_sec = 59;
72        t.tm_min = 55;
73        t.tm_hour = 23;
74        t.tm_mday = 31;
75        t.tm_mon = 11;
76        t.tm_year = 161;
77        t.tm_wday = 6;
78        os << std::put_time(&t, L"%c");
79        assert(sb.str() == L"Sat Dec 31 23:55:59 2061");
80    }
81}
82