summaryrefslogtreecommitdiff
path: root/libstdc++-v3/src/ios.cc
diff options
context:
space:
mode:
Diffstat (limited to 'libstdc++-v3/src/ios.cc')
-rw-r--r--libstdc++-v3/src/ios.cc212
1 files changed, 21 insertions, 191 deletions
diff --git a/libstdc++-v3/src/ios.cc b/libstdc++-v3/src/ios.cc
index 616f4f5b196..fdc1f06c1cb 100644
--- a/libstdc++-v3/src/ios.cc
+++ b/libstdc++-v3/src/ios.cc
@@ -33,51 +33,11 @@
//
#include <ios>
-#include <ostream>
-#include <istream>
-#include <fstream>
+#include <limits>
#include <bits/atomicity.h>
-#include <ext/stdio_filebuf.h>
-#include <ext/stdio_sync_filebuf.h>
-
-namespace __gnu_cxx
-{
- // Extern declarations for global objects in src/globals.cc.
- extern stdio_sync_filebuf<char> buf_cout_sync;
- extern stdio_sync_filebuf<char> buf_cin_sync;
- extern stdio_sync_filebuf<char> buf_cerr_sync;
-
- extern stdio_filebuf<char> buf_cout;
- extern stdio_filebuf<char> buf_cin;
- extern stdio_filebuf<char> buf_cerr;
-
-#ifdef _GLIBCXX_USE_WCHAR_T
- extern stdio_sync_filebuf<wchar_t> buf_wcout_sync;
- extern stdio_sync_filebuf<wchar_t> buf_wcin_sync;
- extern stdio_sync_filebuf<wchar_t> buf_wcerr_sync;
-
- extern stdio_filebuf<wchar_t> buf_wcout;
- extern stdio_filebuf<wchar_t> buf_wcin;
- extern stdio_filebuf<wchar_t> buf_wcerr;
-#endif
-} // namespace __gnu_cxx
namespace std
{
- using namespace __gnu_cxx;
-
- extern istream cin;
- extern ostream cout;
- extern ostream cerr;
- extern ostream clog;
-
-#ifdef _GLIBCXX_USE_WCHAR_T
- extern wistream wcin;
- extern wostream wcout;
- extern wostream wcerr;
- extern wostream wclog;
-#endif
-
// Definitions for static const data members of __ios_flags.
const __ios_flags::__int_type __ios_flags::_S_boolalpha;
const __ios_flags::__int_type __ios_flags::_S_dec;
@@ -146,69 +106,30 @@ namespace std
const ios_base::seekdir ios_base::end;
const int ios_base::_S_local_word_size;
+
int ios_base::Init::_S_ios_base_init = 0;
+
bool ios_base::Init::_S_synced_with_stdio = true;
- ios_base::Init::Init()
+ ios_base::ios_base()
+ : _M_callbacks(0), _M_word_size(_S_local_word_size), _M_word(_M_local_word)
{
- if (_S_ios_base_init == 0)
- {
- // Standard streams default to synced with "C" operations.
- _S_synced_with_stdio = true;
-
- new (&buf_cout_sync) stdio_sync_filebuf<char>(stdout);
- new (&buf_cin_sync) stdio_sync_filebuf<char>(stdin);
- new (&buf_cerr_sync) stdio_sync_filebuf<char>(stderr);
-
- // The standard streams are constructed once only and never
- // destroyed.
- new (&cout) ostream(&buf_cout_sync);
- new (&cin) istream(&buf_cin_sync);
- new (&cerr) ostream(&buf_cerr_sync);
- new (&clog) ostream(&buf_cerr_sync);
- cin.tie(&cout);
- cerr.flags(ios_base::unitbuf);
-
-#ifdef _GLIBCXX_USE_WCHAR_T
- new (&buf_wcout_sync) stdio_sync_filebuf<wchar_t>(stdout);
- new (&buf_wcin_sync) stdio_sync_filebuf<wchar_t>(stdin);
- new (&buf_wcerr_sync) stdio_sync_filebuf<wchar_t>(stderr);
-
- new (&wcout) wostream(&buf_wcout_sync);
- new (&wcin) wistream(&buf_wcin_sync);
- new (&wcerr) wostream(&buf_wcerr_sync);
- new (&wclog) wostream(&buf_wcerr_sync);
- wcin.tie(&wcout);
- wcerr.flags(ios_base::unitbuf);
-#endif
-
- _S_ios_base_init = 1;
- }
- ++_S_ios_base_init;
+ // Do nothing: basic_ios::init() does it.
+ // NB: _M_callbacks and _M_word must be zero for non-initialized
+ // ios_base to go through ~ios_base gracefully.
}
-
- ios_base::Init::~Init()
+
+ // 27.4.2.7 ios_base constructors/destructors
+ ios_base::~ios_base()
{
- if (--_S_ios_base_init == 1)
+ _M_call_callbacks(erase_event);
+ _M_dispose_callbacks();
+ if (_M_word != _M_local_word)
{
- // Catch any exceptions thrown by basic_ostream::flush()
- try
- {
- // Flush standard output streams as required by 27.4.2.1.6
- cout.flush();
- cerr.flush();
- clog.flush();
-
-#ifdef _GLIBCXX_USE_WCHAR_T
- wcout.flush();
- wcerr.flush();
- wclog.flush();
-#endif
- }
- catch (...)
- { }
+ delete [] _M_word;
+ _M_word = 0;
}
- }
+ }
// 27.4.2.5 ios_base storage functions
int
@@ -220,6 +141,10 @@ namespace std
return __exchange_and_add(&_S_top, 1) + 4;
}
+ void
+ ios_base::register_callback(event_callback __fn, int __index)
+ { _M_callbacks = new _Callback_list(__fn, __index, _M_callbacks); }
+
// 27.4.2.5 iword/pword storage
ios_base::_Words&
ios_base::_M_grow_words(int ix)
@@ -262,51 +187,6 @@ namespace std
_M_word_size = newsize;
return _M_word[ix];
}
-
- // Called only by basic_ios<>::init.
- void
- ios_base::_M_init()
- {
- // NB: May be called more than once
- _M_precision = 6;
- _M_width = 0;
- _M_flags = skipws | dec;
- _M_ios_locale = locale();
- }
-
- // 27.4.2.3 ios_base locale functions
- locale
- ios_base::imbue(const locale& __loc)
- {
- locale __old = _M_ios_locale;
- _M_ios_locale = __loc;
- _M_call_callbacks(imbue_event);
- return __old;
- }
-
- ios_base::ios_base()
- : _M_callbacks(0), _M_word_size(_S_local_word_size), _M_word(_M_local_word)
- {
- // Do nothing: basic_ios::init() does it.
- // NB: _M_callbacks and _M_word must be zero for non-initialized
- // ios_base to go through ~ios_base gracefully.
- }
-
- // 27.4.2.7 ios_base constructors/destructors
- ios_base::~ios_base()
- {
- _M_call_callbacks(erase_event);
- _M_dispose_callbacks();
- if (_M_word != _M_local_word)
- {
- delete [] _M_word;
- _M_word = 0;
- }
- }
-
- void
- ios_base::register_callback(event_callback __fn, int __index)
- { _M_callbacks = new _Callback_list(__fn, __index, _M_callbacks); }
void
ios_base::_M_call_callbacks(event __e) throw()
@@ -334,54 +214,4 @@ namespace std
}
_M_callbacks = 0;
}
-
- bool
- ios_base::sync_with_stdio(bool __sync)
- {
- // _GLIBCXX_RESOLVE_LIB_DEFECTS
- // 49. Underspecification of ios_base::sync_with_stdio
- bool __ret = ios_base::Init::_S_synced_with_stdio;
-
- // Turn off sync with C FILE* for cin, cout, cerr, clog iff
- // currently synchronized.
- if (!__sync && __ret)
- {
- ios_base::Init::_S_synced_with_stdio = __sync;
-
- // Explicitly call dtors to free any memory that is
- // dynamically allocated by filebuf ctor or member functions,
- // but don't deallocate all memory by calling operator delete.
- buf_cout_sync.~stdio_sync_filebuf<char>();
- buf_cin_sync.~stdio_sync_filebuf<char>();
- buf_cerr_sync.~stdio_sync_filebuf<char>();
-
-#ifdef _GLIBCXX_USE_WCHAR_T
- buf_wcout_sync.~stdio_sync_filebuf<wchar_t>();
- buf_wcin_sync.~stdio_sync_filebuf<wchar_t>();
- buf_wcerr_sync.~stdio_sync_filebuf<wchar_t>();
-#endif
-
- // Create stream buffers for the standard streams and use
- // those buffers without destroying and recreating the
- // streams.
- new (&buf_cout) stdio_filebuf<char>(stdout, ios_base::out);
- new (&buf_cin) stdio_filebuf<char>(stdin, ios_base::in);
- new (&buf_cerr) stdio_filebuf<char>(stderr, ios_base::out);
- cout.rdbuf(&buf_cout);
- cin.rdbuf(&buf_cin);
- cerr.rdbuf(&buf_cerr);
- clog.rdbuf(&buf_cerr);
-
-#ifdef _GLIBCXX_USE_WCHAR_T
- new (&buf_wcout) stdio_filebuf<wchar_t>(stdout, ios_base::out);
- new (&buf_wcin) stdio_filebuf<wchar_t>(stdin, ios_base::in);
- new (&buf_wcerr) stdio_filebuf<wchar_t>(stderr, ios_base::out);
- wcout.rdbuf(&buf_wcout);
- wcin.rdbuf(&buf_wcin);
- wcerr.rdbuf(&buf_wcerr);
- wclog.rdbuf(&buf_wcerr);
-#endif
- }
- return __ret;
- }
} // namespace std
View Lorry Controller Status