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📄 algorithm.cpp(3.73 KB)
📄 any.cpp(933 B)
📄 atomic.cpp(7.67 KB)
📄 barrier.cpp(3.77 KB)
📄 bind.cpp(715 B)
📄 charconv.cpp(4.51 KB)
📄 chrono.cpp(4.94 KB)
📄 condition_variable.cpp(2.73 KB)
📄 condition_variable_destructor.cpp(1.26 KB)
📄 debug.cpp(13.37 KB)
📄 exception.cpp(1.25 KB)
📁 experimental
📁 filesystem
📄 functional.cpp(656 B)
📄 future.cpp(6.21 KB)
📄 hash.cpp(13.04 KB)
📁 include
📄 ios.cpp(12.62 KB)
📄 iostream.cpp(5.66 KB)
📄 locale.cpp(189.52 KB)
📄 memory.cpp(6.15 KB)
📄 mutex.cpp(5.77 KB)
📄 mutex_destructor.cpp(1.44 KB)
📄 new.cpp(5.98 KB)
📄 optional.cpp(1.16 KB)
📄 random.cpp(3.98 KB)
📄 random_shuffle.cpp(1.26 KB)
📄 regex.cpp(8.22 KB)
📄 shared_mutex.cpp(2.86 KB)
📄 stdexcept.cpp(592 B)
📄 string.cpp(11.54 KB)
📄 strstream.cpp(8.46 KB)
📁 support
📄 system_error.cpp(6.88 KB)
📄 thread.cpp(5.42 KB)
📄 typeinfo.cpp(1.79 KB)
📄 utility.cpp(497 B)
📄 valarray.cpp(1.67 KB)
📄 variant.cpp(517 B)
📄 vector.cpp(529 B)

Editing: iostream.cpp

//===------------------------ 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

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Editing: iostream.cpp

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