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libcxx/test/std/input.output/iostream.format/ext.manip/put_time.pass.cpp

88 lines
2.3 KiB
C++

//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// REQUIRES: locale.en_US.UTF-8
// <iomanip>
// template <class charT> T10 put_time(const struct tm* tmb, const charT* fmt);
#include <iomanip>
#include <ostream>
#include <cassert>
#include "platform_support.h" // locale name macros
template <class CharT>
class testbuf
: public std::basic_streambuf<CharT>
{
typedef std::basic_streambuf<CharT> base;
std::basic_string<CharT> str_;
public:
testbuf()
{
}
std::basic_string<CharT> str() const
{return std::basic_string<CharT>(base::pbase(), base::pptr());}
protected:
virtual typename base::int_type
overflow(typename base::int_type ch = base::traits_type::eof())
{
if (ch != base::traits_type::eof())
{
int n = static_cast<int>(str_.size());
str_.push_back(static_cast<CharT>(ch));
str_.resize(str_.capacity());
base::setp(const_cast<CharT*>(str_.data()),
const_cast<CharT*>(str_.data() + str_.size()));
base::pbump(n+1);
}
return ch;
}
};
int main()
{
{
testbuf<char> sb;
std::ostream os(&sb);
os.imbue(std::locale(LOCALE_en_US_UTF_8));
std::tm t = {};
t.tm_sec = 59;
t.tm_min = 55;
t.tm_hour = 23;
t.tm_mday = 31;
t.tm_mon = 11;
t.tm_year = 161;
t.tm_wday = 6;
t.tm_isdst = 0;
os << std::put_time(&t, "%a %b %d %H:%M:%S %Y");
assert(sb.str() == "Sat Dec 31 23:55:59 2061");
}
{
testbuf<wchar_t> sb;
std::wostream os(&sb);
os.imbue(std::locale(LOCALE_en_US_UTF_8));
std::tm t = {};
t.tm_sec = 59;
t.tm_min = 55;
t.tm_hour = 23;
t.tm_mday = 31;
t.tm_mon = 11;
t.tm_year = 161;
t.tm_wday = 6;
os << std::put_time(&t, L"%a %b %d %H:%M:%S %Y");
assert(sb.str() == L"Sat Dec 31 23:55:59 2061");
}
}