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 #define _str(s) #s 15 #define str(s) _str(s) 16 #define _LIBCPP_ABI_NAMESPACE_STR str(_LIBCPP_ABI_NAMESPACE) 17 18 _LIBCPP_BEGIN_NAMESPACE_STD 19 20 #ifndef _LIBCPP_HAS_NO_STDIN 21 _ALIGNAS_TYPE (istream) _LIBCPP_FUNC_VIS char cin[sizeof(istream)] 22 #if defined(_LIBCPP_ABI_MICROSOFT) && defined(__clang__) 23 __asm__("?cin@" _LIBCPP_ABI_NAMESPACE_STR "@std@@3V?$basic_istream@DU?$char_traits@D@" _LIBCPP_ABI_NAMESPACE_STR "@std@@@12@A") 24 #endif 25 ; 26 _ALIGNAS_TYPE (__stdinbuf<char> ) static char __cin[sizeof(__stdinbuf <char>)]; 27 static mbstate_t mb_cin; 28 _ALIGNAS_TYPE (wistream) _LIBCPP_FUNC_VIS char wcin[sizeof(wistream)] 29 #if defined(_LIBCPP_ABI_MICROSOFT) && defined(__clang__) 30 __asm__("?wcin@" _LIBCPP_ABI_NAMESPACE_STR "@std@@3V?$basic_istream@_WU?$char_traits@_W@" _LIBCPP_ABI_NAMESPACE_STR "@std@@@12@A") 31 #endif 32 ; 33 _ALIGNAS_TYPE (__stdinbuf<wchar_t> ) static char __wcin[sizeof(__stdinbuf <wchar_t>)]; 34 static mbstate_t mb_wcin; 35 #endif 36 37 #ifndef _LIBCPP_HAS_NO_STDOUT 38 _ALIGNAS_TYPE (ostream) _LIBCPP_FUNC_VIS char cout[sizeof(ostream)] 39 #if defined(_LIBCPP_ABI_MICROSOFT) && defined(__clang__) 40 __asm__("?cout@" _LIBCPP_ABI_NAMESPACE_STR "@std@@3V?$basic_ostream@DU?$char_traits@D@" _LIBCPP_ABI_NAMESPACE_STR "@std@@@12@A") 41 #endif 42 ; 43 _ALIGNAS_TYPE (__stdoutbuf<char>) static char __cout[sizeof(__stdoutbuf<char>)]; 44 static mbstate_t mb_cout; 45 _ALIGNAS_TYPE (wostream) _LIBCPP_FUNC_VIS char wcout[sizeof(wostream)] 46 #if defined(_LIBCPP_ABI_MICROSOFT) && defined(__clang__) 47 __asm__("?wcout@" _LIBCPP_ABI_NAMESPACE_STR "@std@@3V?$basic_ostream@_WU?$char_traits@_W@" _LIBCPP_ABI_NAMESPACE_STR "@std@@@12@A") 48 #endif 49 ; 50 _ALIGNAS_TYPE (__stdoutbuf<wchar_t>) static char __wcout[sizeof(__stdoutbuf<wchar_t>)]; 51 static mbstate_t mb_wcout; 52 #endif 53 54 _ALIGNAS_TYPE (ostream) _LIBCPP_FUNC_VIS char cerr[sizeof(ostream)] 55 #if defined(_LIBCPP_ABI_MICROSOFT) && defined(__clang__) 56 __asm__("?cerr@" _LIBCPP_ABI_NAMESPACE_STR "@std@@3V?$basic_ostream@DU?$char_traits@D@" _LIBCPP_ABI_NAMESPACE_STR "@std@@@12@A") 57 #endif 58 ; 59 _ALIGNAS_TYPE (__stdoutbuf<char>) static char __cerr[sizeof(__stdoutbuf<char>)]; 60 static mbstate_t mb_cerr; 61 _ALIGNAS_TYPE (wostream) _LIBCPP_FUNC_VIS char wcerr[sizeof(wostream)] 62 #if defined(_LIBCPP_ABI_MICROSOFT) && defined(__clang__) 63 __asm__("?wcerr@" _LIBCPP_ABI_NAMESPACE_STR "@std@@3V?$basic_ostream@_WU?$char_traits@_W@" _LIBCPP_ABI_NAMESPACE_STR "@std@@@12@A") 64 #endif 65 ; 66 _ALIGNAS_TYPE (__stdoutbuf<wchar_t>) static char __wcerr[sizeof(__stdoutbuf<wchar_t>)]; 67 static mbstate_t mb_wcerr; 68 69 _ALIGNAS_TYPE (ostream) _LIBCPP_FUNC_VIS char clog[sizeof(ostream)] 70 #if defined(_LIBCPP_ABI_MICROSOFT) && defined(__clang__) 71 __asm__("?clog@" _LIBCPP_ABI_NAMESPACE_STR "@std@@3V?$basic_ostream@DU?$char_traits@D@" _LIBCPP_ABI_NAMESPACE_STR "@std@@@12@A") 72 #endif 73 ; 74 _ALIGNAS_TYPE (wostream) _LIBCPP_FUNC_VIS char wclog[sizeof(wostream)] 75 #if defined(_LIBCPP_ABI_MICROSOFT) && defined(__clang__) 76 __asm__("?wclog@" _LIBCPP_ABI_NAMESPACE_STR "@std@@3V?$basic_ostream@_WU?$char_traits@_W@" _LIBCPP_ABI_NAMESPACE_STR "@std@@@12@A") 77 #endif 78 ; 79 80 _LIBCPP_HIDDEN ios_base::Init __start_std_streams; 81 Init()82ios_base::Init::Init() 83 { 84 #ifndef _LIBCPP_HAS_NO_STDIN 85 istream* cin_ptr = ::new(cin) istream(::new(__cin) __stdinbuf <char>(stdin, &mb_cin)); 86 wistream* wcin_ptr = ::new(wcin) wistream(::new(__wcin) __stdinbuf <wchar_t>(stdin, &mb_wcin)); 87 #endif 88 #ifndef _LIBCPP_HAS_NO_STDOUT 89 ostream* cout_ptr = ::new(cout) ostream(::new(__cout) __stdoutbuf<char>(stdout, &mb_cout)); 90 wostream* wcout_ptr = ::new(wcout) wostream(::new(__wcout) __stdoutbuf<wchar_t>(stdout, &mb_wcout)); 91 #endif 92 ostream* cerr_ptr = ::new(cerr) ostream(::new(__cerr) __stdoutbuf<char>(stderr, &mb_cerr)); 93 ::new(clog) ostream(cerr_ptr->rdbuf()); 94 wostream* wcerr_ptr = ::new(wcerr) wostream(::new(__wcerr) __stdoutbuf<wchar_t>(stderr, &mb_wcerr)); 95 ::new(wclog) wostream(wcerr_ptr->rdbuf()); 96 97 #if !defined(_LIBCPP_HAS_NO_STDIN) && !defined(_LIBCPP_HAS_NO_STDOUT) 98 cin_ptr->tie(cout_ptr); 99 wcin_ptr->tie(wcout_ptr); 100 #endif 101 _VSTD::unitbuf(*cerr_ptr); 102 _VSTD::unitbuf(*wcerr_ptr); 103 #ifndef _LIBCPP_HAS_NO_STDOUT 104 cerr_ptr->tie(cout_ptr); 105 wcerr_ptr->tie(wcout_ptr); 106 #endif 107 } 108 ~Init()109ios_base::Init::~Init() 110 { 111 #ifndef _LIBCPP_HAS_NO_STDOUT 112 ostream* cout_ptr = reinterpret_cast<ostream*>(cout); 113 wostream* wcout_ptr = reinterpret_cast<wostream*>(wcout); 114 cout_ptr->flush(); 115 wcout_ptr->flush(); 116 #endif 117 118 ostream* clog_ptr = reinterpret_cast<ostream*>(clog); 119 wostream* wclog_ptr = reinterpret_cast<wostream*>(wclog); 120 clog_ptr->flush(); 121 wclog_ptr->flush(); 122 } 123 124 _LIBCPP_END_NAMESPACE_STD 125