iostream.cpp (5379B)
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 82 ios_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 #ifdef _LIBCPP_SUPPORT_WCHAR 87 wistream* wcin_ptr = ::new(wcin) wistream(::new(__wcin) __stdinbuf <wchar_t>(stdin, &mb_wcin)); 88 #endif 89 #endif 90 #ifndef _LIBCPP_HAS_NO_STDOUT 91 ostream* cout_ptr = ::new(cout) ostream(::new(__cout) __stdoutbuf<char>(stdout, &mb_cout)); 92 #ifdef _LIBCPP_SUPPORT_WCHAR 93 wostream* wcout_ptr = ::new(wcout) wostream(::new(__wcout) __stdoutbuf<wchar_t>(stdout, &mb_wcout)); 94 #endif 95 #endif 96 ostream* cerr_ptr = ::new(cerr) ostream(::new(__cerr) __stdoutbuf<char>(stderr, &mb_cerr)); 97 ::new(clog) ostream(cerr_ptr->rdbuf()); 98 #ifdef _LIBCPP_SUPPORT_WCHAR 99 wostream* wcerr_ptr = ::new(wcerr) wostream(::new(__wcerr) __stdoutbuf<wchar_t>(stderr, &mb_wcerr)); 100 ::new(wclog) wostream(wcerr_ptr->rdbuf()); 101 #endif 102 103 #if !defined(_LIBCPP_HAS_NO_STDIN) && !defined(_LIBCPP_HAS_NO_STDOUT) 104 cin_ptr->tie(cout_ptr); 105 #ifdef _LIBCPP_SUPPORT_WCHAR 106 wcin_ptr->tie(wcout_ptr); 107 #endif 108 #endif 109 _VSTD::unitbuf(*cerr_ptr); 110 #ifdef _LIBCPP_SUPPORT_WCHAR 111 _VSTD::unitbuf(*wcerr_ptr); 112 #endif 113 #ifndef _LIBCPP_HAS_NO_STDOUT 114 cerr_ptr->tie(cout_ptr); 115 #ifdef _LIBCPP_SUPPORT_WCHAR 116 wcerr_ptr->tie(wcout_ptr); 117 #endif 118 #endif 119 } 120 121 ios_base::Init::~Init() 122 { 123 #ifndef _LIBCPP_HAS_NO_STDOUT 124 ostream* cout_ptr = reinterpret_cast<ostream*>(cout); 125 #ifdef _LIBCPP_SUPPORT_WCHAR 126 wostream* wcout_ptr = reinterpret_cast<wostream*>(wcout); 127 #endif 128 cout_ptr->flush(); 129 #ifdef _LIBCPP_SUPPORT_WCHAR 130 wcout_ptr->flush(); 131 #endif 132 #endif 133 134 ostream* clog_ptr = reinterpret_cast<ostream*>(clog); 135 #ifdef _LIBCPP_SUPPORT_WCHAR 136 wostream* wclog_ptr = reinterpret_cast<wostream*>(wclog); 137 #endif 138 clog_ptr->flush(); 139 #ifdef _LIBCPP_SUPPORT_WCHAR 140 wclog_ptr->flush(); 141 #endif 142 } 143 144 _LIBCPP_END_NAMESPACE_STD