1//===------------------------ iostream.cpp --------------------------------===//
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#include "__std_stream"
11#include "string"
12#include "new"
13
14_LIBCPP_BEGIN_NAMESPACE_STD
15
16static mbstate_t state_types[6] = {};
17
18_ALIGNAS_TYPE (__stdinbuf<char> ) static char __cin [sizeof(__stdinbuf <char>)];
19_ALIGNAS_TYPE (__stdoutbuf<char>) static char __cout[sizeof(__stdoutbuf<char>)];
20_ALIGNAS_TYPE (__stdoutbuf<char>) static char __cerr[sizeof(__stdoutbuf<char>)];
21_ALIGNAS_TYPE (__stdinbuf<wchar_t> ) static char __wcin [sizeof(__stdinbuf <wchar_t>)];
22_ALIGNAS_TYPE (__stdoutbuf<wchar_t>) static char __wcout[sizeof(__stdoutbuf<wchar_t>)];
23_ALIGNAS_TYPE (__stdoutbuf<wchar_t>) static char __wcerr[sizeof(__stdoutbuf<wchar_t>)];
24
25_ALIGNAS_TYPE (istream)  _LIBCPP_FUNC_VIS char cin [sizeof(istream)];
26_ALIGNAS_TYPE (ostream)  _LIBCPP_FUNC_VIS char cout[sizeof(ostream)];
27_ALIGNAS_TYPE (ostream)  _LIBCPP_FUNC_VIS char cerr[sizeof(ostream)];
28_ALIGNAS_TYPE (ostream)  _LIBCPP_FUNC_VIS char clog[sizeof(ostream)];
29_ALIGNAS_TYPE (wistream) _LIBCPP_FUNC_VIS char wcin [sizeof(wistream)];
30_ALIGNAS_TYPE (wostream) _LIBCPP_FUNC_VIS char wcout[sizeof(wostream)];
31_ALIGNAS_TYPE (wostream) _LIBCPP_FUNC_VIS char wcerr[sizeof(wostream)];
32_ALIGNAS_TYPE (wostream) _LIBCPP_FUNC_VIS char wclog[sizeof(wostream)];
33
34ios_base::Init __start_std_streams;
35
36ios_base::Init::Init()
37{
38    istream* cin_ptr  = ::new(cin)  istream(::new(__cin)  __stdinbuf <char>(stdin, state_types+0) );
39    ostream* cout_ptr = ::new(cout) ostream(::new(__cout) __stdoutbuf<char>(stdout, state_types+1));
40    ostream* cerr_ptr = ::new(cerr) ostream(::new(__cerr) __stdoutbuf<char>(stderr, state_types+2));
41                        ::new(clog) ostream(cerr_ptr->rdbuf());
42    cin_ptr->tie(cout_ptr);
43    _VSTD::unitbuf(*cerr_ptr);
44    cerr_ptr->tie(cout_ptr);
45
46    wistream* wcin_ptr  = ::new(wcin)  wistream(::new(__wcin)  __stdinbuf <wchar_t>(stdin, state_types+3) );
47    wostream* wcout_ptr = ::new(wcout) wostream(::new(__wcout) __stdoutbuf<wchar_t>(stdout, state_types+4));
48    wostream* wcerr_ptr = ::new(wcerr) wostream(::new(__wcerr) __stdoutbuf<wchar_t>(stderr, state_types+5));
49                          ::new(wclog) wostream(wcerr_ptr->rdbuf());
50    wcin_ptr->tie(wcout_ptr);
51    _VSTD::unitbuf(*wcerr_ptr);
52    wcerr_ptr->tie(wcout_ptr);
53}
54
55ios_base::Init::~Init()
56{
57    ostream* cout_ptr = reinterpret_cast<ostream*>(cout);
58    ostream* clog_ptr = reinterpret_cast<ostream*>(clog);
59    cout_ptr->flush();
60    clog_ptr->flush();
61
62    wostream* wcout_ptr = reinterpret_cast<wostream*>(wcout);
63    wostream* wclog_ptr = reinterpret_cast<wostream*>(wclog);
64    wcout_ptr->flush();
65    wclog_ptr->flush();
66}
67
68_LIBCPP_END_NAMESPACE_STD
69