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 16 static 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) char cin [sizeof(istream)]; 26 _ALIGNAS_TYPE (ostream) char cout[sizeof(ostream)]; 27 _ALIGNAS_TYPE (ostream) char cerr[sizeof(ostream)]; 28 _ALIGNAS_TYPE (ostream) char clog[sizeof(ostream)]; 29 _ALIGNAS_TYPE (wistream) char wcin [sizeof(wistream)]; 30 _ALIGNAS_TYPE (wostream) char wcout[sizeof(wostream)]; 31 _ALIGNAS_TYPE (wostream) char wcerr[sizeof(wostream)]; 32 _ALIGNAS_TYPE (wostream) char wclog[sizeof(wostream)]; 33 34 ios_base::Init __start_std_streams; 35 36 ios_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 55 ios_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
