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 #ifndef _LIBCPP_HAS_NO_STDIN 17 _ALIGNAS_TYPE (istream) _LIBCPP_FUNC_VIS char cin[sizeof(istream)] 18 #if defined(_MSC_VER) && defined(__clang__) 19 __asm__("?cin@__1@std@@3V?$basic_istream@DU?$char_traits@D@__1@std@@@12@A") 20 #endif 21 ; 22 _ALIGNAS_TYPE (__stdinbuf<char> ) static char __cin[sizeof(__stdinbuf <char>)]; 23 static mbstate_t mb_cin; 24 _ALIGNAS_TYPE (wistream) _LIBCPP_FUNC_VIS char wcin[sizeof(wistream)] 25 #if defined(_MSC_VER) && defined(__clang__) 26 __asm__("?wcin@__1@std@@3V?$basic_istream@_WU?$char_traits@_W@__1@std@@@12@A") 27 #endif 28 ; 29 _ALIGNAS_TYPE (__stdinbuf<wchar_t> ) static char __wcin[sizeof(__stdinbuf <wchar_t>)]; 30 static mbstate_t mb_wcin; 31 #endif 32 33 #ifndef _LIBCPP_HAS_NO_STDOUT 34 _ALIGNAS_TYPE (ostream) _LIBCPP_FUNC_VIS char cout[sizeof(ostream)] 35 #if defined(_MSC_VER) && defined(__clang__) 36 __asm__("?cout@__1@std@@3V?$basic_ostream@DU?$char_traits@D@__1@std@@@12@A") 37 #endif 38 ; 39 _ALIGNAS_TYPE (__stdoutbuf<char>) static char __cout[sizeof(__stdoutbuf<char>)]; 40 static mbstate_t mb_cout; 41 _ALIGNAS_TYPE (wostream) _LIBCPP_FUNC_VIS char wcout[sizeof(wostream)] 42 #if defined(_MSC_VER) && defined(__clang__) 43 __asm__("?wcout@__1@std@@3V?$basic_ostream@_WU?$char_traits@_W@__1@std@@@12@A") 44 #endif 45 ; 46 _ALIGNAS_TYPE (__stdoutbuf<wchar_t>) static char __wcout[sizeof(__stdoutbuf<wchar_t>)]; 47 static mbstate_t mb_wcout; 48 #endif 49 50 _ALIGNAS_TYPE (ostream) _LIBCPP_FUNC_VIS char cerr[sizeof(ostream)] 51 #if defined(_MSC_VER) && defined(__clang__) 52 __asm__("?cerr@__1@std@@3V?$basic_ostream@DU?$char_traits@D@__1@std@@@12@A") 53 #endif 54 ; 55 _ALIGNAS_TYPE (__stdoutbuf<char>) static char __cerr[sizeof(__stdoutbuf<char>)]; 56 static mbstate_t mb_cerr; 57 _ALIGNAS_TYPE (wostream) _LIBCPP_FUNC_VIS char wcerr[sizeof(wostream)] 58 #if defined(_MSC_VER) && defined(__clang__) 59 __asm__("?wcerr@__1@std@@3V?$basic_ostream@_WU?$char_traits@_W@__1@std@@@12@A") 60 #endif 61 ; 62 _ALIGNAS_TYPE (__stdoutbuf<wchar_t>) static char __wcerr[sizeof(__stdoutbuf<wchar_t>)]; 63 static mbstate_t mb_wcerr; 64 65 _ALIGNAS_TYPE (ostream) _LIBCPP_FUNC_VIS char clog[sizeof(ostream)] 66 #if defined(_MSC_VER) && defined(__clang__) 67 __asm__("?clog@__1@std@@3V?$basic_ostream@DU?$char_traits@D@__1@std@@@12@A") 68 #endif 69 ; 70 _ALIGNAS_TYPE (wostream) _LIBCPP_FUNC_VIS char wclog[sizeof(wostream)] 71 #if defined(_MSC_VER) && defined(__clang__) 72 __asm__("?wclog@__1@std@@3V?$basic_ostream@_WU?$char_traits@_W@__1@std@@@12@A") 73 #endif 74 ; 75 76 ios_base::Init __start_std_streams; 77 78 ios_base::Init::Init() 79 { 80 #ifndef _LIBCPP_HAS_NO_STDIN 81 istream* cin_ptr = ::new(cin) istream(::new(__cin) __stdinbuf <char>(stdin, &mb_cin)); 82 wistream* wcin_ptr = ::new(wcin) wistream(::new(__wcin) __stdinbuf <wchar_t>(stdin, &mb_wcin)); 83 #endif 84 #ifndef _LIBCPP_HAS_NO_STDOUT 85 ostream* cout_ptr = ::new(cout) ostream(::new(__cout) __stdoutbuf<char>(stdout, &mb_cout)); 86 wostream* wcout_ptr = ::new(wcout) wostream(::new(__wcout) __stdoutbuf<wchar_t>(stdout, &mb_wcout)); 87 #endif 88 ostream* cerr_ptr = ::new(cerr) ostream(::new(__cerr) __stdoutbuf<char>(stderr, &mb_cerr)); 89 ::new(clog) ostream(cerr_ptr->rdbuf()); 90 wostream* wcerr_ptr = ::new(wcerr) wostream(::new(__wcerr) __stdoutbuf<wchar_t>(stderr, &mb_wcerr)); 91 ::new(wclog) wostream(wcerr_ptr->rdbuf()); 92 93 #if !defined(_LIBCPP_HAS_NO_STDIN) && !defined(_LIBCPP_HAS_NO_STDOUT) 94 cin_ptr->tie(cout_ptr); 95 wcin_ptr->tie(wcout_ptr); 96 #endif 97 _VSTD::unitbuf(*cerr_ptr); 98 _VSTD::unitbuf(*wcerr_ptr); 99 #ifndef _LIBCPP_HAS_NO_STDOUT 100 cerr_ptr->tie(cout_ptr); 101 wcerr_ptr->tie(wcout_ptr); 102 #endif 103 } 104 105 ios_base::Init::~Init() 106 { 107 #ifndef _LIBCPP_HAS_NO_STDOUT 108 ostream* cout_ptr = reinterpret_cast<ostream*>(cout); 109 wostream* wcout_ptr = reinterpret_cast<wostream*>(wcout); 110 cout_ptr->flush(); 111 wcout_ptr->flush(); 112 #endif 113 114 ostream* clog_ptr = reinterpret_cast<ostream*>(clog); 115 wostream* wclog_ptr = reinterpret_cast<wostream*>(wclog); 116 clog_ptr->flush(); 117 wclog_ptr->flush(); 118 } 119 120 _LIBCPP_END_NAMESPACE_STD 121
