| //===------------------------ iostream.cpp --------------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "__std_stream" |
| #include "__locale" |
| #include "string" |
| #include "new" |
| |
| #define _str(s) #s |
| #define str(s) _str(s) |
| #define _LIBCPP_ABI_NAMESPACE_STR str(_LIBCPP_ABI_NAMESPACE) |
| |
| _LIBCPP_BEGIN_NAMESPACE_STD |
| |
| #ifndef _LIBCPP_HAS_NO_STDIN |
| _ALIGNAS_TYPE (istream) _LIBCPP_FUNC_VIS char cin[sizeof(istream)] |
| #if defined(_LIBCPP_ABI_MICROSOFT) && defined(__clang__) |
| __asm__("?cin@" _LIBCPP_ABI_NAMESPACE_STR "@std@@3V?$basic_istream@DU?$char_traits@D@" _LIBCPP_ABI_NAMESPACE_STR "@std@@@12@A") |
| #endif |
| ; |
| _ALIGNAS_TYPE (__stdinbuf<char> ) static char __cin[sizeof(__stdinbuf <char>)]; |
| static mbstate_t mb_cin; |
| _ALIGNAS_TYPE (wistream) _LIBCPP_FUNC_VIS char wcin[sizeof(wistream)] |
| #if defined(_LIBCPP_ABI_MICROSOFT) && defined(__clang__) |
| __asm__("?wcin@" _LIBCPP_ABI_NAMESPACE_STR "@std@@3V?$basic_istream@_WU?$char_traits@_W@" _LIBCPP_ABI_NAMESPACE_STR "@std@@@12@A") |
| #endif |
| ; |
| _ALIGNAS_TYPE (__stdinbuf<wchar_t> ) static char __wcin[sizeof(__stdinbuf <wchar_t>)]; |
| static mbstate_t mb_wcin; |
| #endif |
| |
| #ifndef _LIBCPP_HAS_NO_STDOUT |
| _ALIGNAS_TYPE (ostream) _LIBCPP_FUNC_VIS char cout[sizeof(ostream)] |
| #if defined(_LIBCPP_ABI_MICROSOFT) && defined(__clang__) |
| __asm__("?cout@" _LIBCPP_ABI_NAMESPACE_STR "@std@@3V?$basic_ostream@DU?$char_traits@D@" _LIBCPP_ABI_NAMESPACE_STR "@std@@@12@A") |
| #endif |
| ; |
| _ALIGNAS_TYPE (__stdoutbuf<char>) static char __cout[sizeof(__stdoutbuf<char>)]; |
| static mbstate_t mb_cout; |
| _ALIGNAS_TYPE (wostream) _LIBCPP_FUNC_VIS char wcout[sizeof(wostream)] |
| #if defined(_LIBCPP_ABI_MICROSOFT) && defined(__clang__) |
| __asm__("?wcout@" _LIBCPP_ABI_NAMESPACE_STR "@std@@3V?$basic_ostream@_WU?$char_traits@_W@" _LIBCPP_ABI_NAMESPACE_STR "@std@@@12@A") |
| #endif |
| ; |
| _ALIGNAS_TYPE (__stdoutbuf<wchar_t>) static char __wcout[sizeof(__stdoutbuf<wchar_t>)]; |
| static mbstate_t mb_wcout; |
| #endif |
| |
| _ALIGNAS_TYPE (ostream) _LIBCPP_FUNC_VIS char cerr[sizeof(ostream)] |
| #if defined(_LIBCPP_ABI_MICROSOFT) && defined(__clang__) |
| __asm__("?cerr@" _LIBCPP_ABI_NAMESPACE_STR "@std@@3V?$basic_ostream@DU?$char_traits@D@" _LIBCPP_ABI_NAMESPACE_STR "@std@@@12@A") |
| #endif |
| ; |
| _ALIGNAS_TYPE (__stdoutbuf<char>) static char __cerr[sizeof(__stdoutbuf<char>)]; |
| static mbstate_t mb_cerr; |
| _ALIGNAS_TYPE (wostream) _LIBCPP_FUNC_VIS char wcerr[sizeof(wostream)] |
| #if defined(_LIBCPP_ABI_MICROSOFT) && defined(__clang__) |
| __asm__("?wcerr@" _LIBCPP_ABI_NAMESPACE_STR "@std@@3V?$basic_ostream@_WU?$char_traits@_W@" _LIBCPP_ABI_NAMESPACE_STR "@std@@@12@A") |
| #endif |
| ; |
| _ALIGNAS_TYPE (__stdoutbuf<wchar_t>) static char __wcerr[sizeof(__stdoutbuf<wchar_t>)]; |
| static mbstate_t mb_wcerr; |
| |
| _ALIGNAS_TYPE (ostream) _LIBCPP_FUNC_VIS char clog[sizeof(ostream)] |
| #if defined(_LIBCPP_ABI_MICROSOFT) && defined(__clang__) |
| __asm__("?clog@" _LIBCPP_ABI_NAMESPACE_STR "@std@@3V?$basic_ostream@DU?$char_traits@D@" _LIBCPP_ABI_NAMESPACE_STR "@std@@@12@A") |
| #endif |
| ; |
| _ALIGNAS_TYPE (wostream) _LIBCPP_FUNC_VIS char wclog[sizeof(wostream)] |
| #if defined(_LIBCPP_ABI_MICROSOFT) && defined(__clang__) |
| __asm__("?wclog@" _LIBCPP_ABI_NAMESPACE_STR "@std@@3V?$basic_ostream@_WU?$char_traits@_W@" _LIBCPP_ABI_NAMESPACE_STR "@std@@@12@A") |
| #endif |
| ; |
| |
| _LIBCPP_HIDDEN ios_base::Init __start_std_streams; |
| |
| // On Windows the TLS storage for locales needs to be initialized before we create |
| // the standard streams, otherwise it may not be alive during program termination |
| // when we flush the streams. |
| static void force_locale_initialization() { |
| #if defined(_LIBCPP_MSVCRT_LIKE) |
| static bool once = []() { |
| auto loc = newlocale(LC_ALL_MASK, "C", 0); |
| { |
| __libcpp_locale_guard g(loc); // forces initialization of locale TLS |
| ((void)g); |
| } |
| freelocale(loc); |
| return true; |
| }(); |
| ((void)once); |
| #endif |
| } |
| |
| class DoIOSInit { |
| public: |
| DoIOSInit(); |
| ~DoIOSInit(); |
| }; |
| |
| DoIOSInit::DoIOSInit() |
| { |
| force_locale_initialization(); |
| |
| #ifndef _LIBCPP_HAS_NO_STDIN |
| istream* cin_ptr = ::new(cin) istream(::new(__cin) __stdinbuf <char>(stdin, &mb_cin)); |
| wistream* wcin_ptr = ::new(wcin) wistream(::new(__wcin) __stdinbuf <wchar_t>(stdin, &mb_wcin)); |
| #endif |
| #ifndef _LIBCPP_HAS_NO_STDOUT |
| ostream* cout_ptr = ::new(cout) ostream(::new(__cout) __stdoutbuf<char>(stdout, &mb_cout)); |
| wostream* wcout_ptr = ::new(wcout) wostream(::new(__wcout) __stdoutbuf<wchar_t>(stdout, &mb_wcout)); |
| #endif |
| ostream* cerr_ptr = ::new(cerr) ostream(::new(__cerr) __stdoutbuf<char>(stderr, &mb_cerr)); |
| ::new(clog) ostream(cerr_ptr->rdbuf()); |
| wostream* wcerr_ptr = ::new(wcerr) wostream(::new(__wcerr) __stdoutbuf<wchar_t>(stderr, &mb_wcerr)); |
| ::new(wclog) wostream(wcerr_ptr->rdbuf()); |
| |
| #if !defined(_LIBCPP_HAS_NO_STDIN) && !defined(_LIBCPP_HAS_NO_STDOUT) |
| cin_ptr->tie(cout_ptr); |
| wcin_ptr->tie(wcout_ptr); |
| #endif |
| _VSTD::unitbuf(*cerr_ptr); |
| _VSTD::unitbuf(*wcerr_ptr); |
| #ifndef _LIBCPP_HAS_NO_STDOUT |
| cerr_ptr->tie(cout_ptr); |
| wcerr_ptr->tie(wcout_ptr); |
| #endif |
| } |
| |
| DoIOSInit::~DoIOSInit() |
| { |
| #ifndef _LIBCPP_HAS_NO_STDOUT |
| ostream* cout_ptr = reinterpret_cast<ostream*>(cout); |
| wostream* wcout_ptr = reinterpret_cast<wostream*>(wcout); |
| cout_ptr->flush(); |
| wcout_ptr->flush(); |
| #endif |
| |
| ostream* clog_ptr = reinterpret_cast<ostream*>(clog); |
| wostream* wclog_ptr = reinterpret_cast<wostream*>(wclog); |
| clog_ptr->flush(); |
| wclog_ptr->flush(); |
| } |
| |
| ios_base::Init::Init() |
| { |
| static DoIOSInit init_the_streams; // gets initialized once |
| } |
| |
| ios_base::Init::~Init() |
| { |
| } |
| |
| _LIBCPP_END_NAMESPACE_STD |