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Fixes for libstdc++/1576

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2001-01-09  Benjamin Kosnik  <bkoz@redhat.com>
	                     <kainz@ilm.com>

	Fixes for libstdc++/1576
	* src/stdstreams.cc: Initialize with NULL filebuf. Delete
	file, move contents into....
	* src/ios.cc: ...Here. Put defines for iostreams objects and
	initialization routines into one file to simplify DSO interaction.
	* include/bits/std_iostream.h: Touch.
	* include/bits/ios_base.h (_S_synched_with_stdio): Make static.
	* src/Makefile.am (sources): Remove stdstreams.cc.
	* src/Makefile.in: Regenerate.

From-SVN: r38871
This commit is contained in:
Benjamin Kosnik 2001-01-10 17:24:11 +00:00
parent 761491c8dc
commit 469550eb04
7 changed files with 63 additions and 104 deletions
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16
libstdc++-v3/ChangeLog
View file

@ -1,11 +1,25 @@
2001-01-09 Benjamin Kosnik <bkoz@redhat.com>
<kainz@ilm.com>
Fixes for libstdc++/1576
* src/stdstreams.cc: Initialize with NULL filebuf. Delete
file, move contents into....
* src/ios.cc: ...Here. Put defines for iostreams objects and
initialization routines into one file to simplify DSO interaction.
* include/bits/std_iostream.h: Touch.
* include/bits/ios_base.h (_S_synched_with_stdio): Make static.
* src/Makefile.am (sources): Remove stdstreams.cc.
* src/Makefile.in: Regenerate.
2001-01-10 Gabriel Dos Reis <gdr@merlin.codesourcery.com> 2001-01-10 Gabriel Dos Reis <gdr@merlin.codesourcery.com>
* tests_flags.in (check_directory): Fix typo. * tests_flags.in (check_directory): Fix typo.
2001-01-09 Peter Schmid <schmid@snake.iap.physik.tu-darmstadt.de> 2001-01-09 Peter Schmid <schmid@snake.iap.physik.tu-darmstadt.de>
* include/bits/std_complex.h: Fix a typo. * include/bits/std_complex.h: Fix a typo.
2001-01-10 Loren J. Rittle <ljrittle@acm.org> 2001-01-09 Loren J. Rittle <ljrittle@acm.org>
* config/os/bsd/freebsd/bits/ctype_inline.h (is): (Make right * config/os/bsd/freebsd/bits/ctype_inline.h (is): (Make right
code path:) Remove magic constants and restructure to handle code path:) Remove magic constants and restructure to handle

2
libstdc++-v3/include/bits/ios_base.h
View file

@ -294,7 +294,7 @@ namespace std {
~Init(); ~Init();
private: private:
static int _S_ios_base_init; static int _S_ios_base_init;
bool _M_synced_with_stdio; static bool _S_synced_with_stdio;
filebuf* _M_cout; filebuf* _M_cout;
filebuf* _M_cin; filebuf* _M_cin;
filebuf* _M_cerr; filebuf* _M_cerr;

10
libstdc++-v3/include/bits/std_iostream.h
View file

@ -1,6 +1,6 @@
// Standard iostream objects -*- C++ -*- // Standard iostream objects -*- C++ -*-
// Copyright (C) 1997-1999 Free Software Foundation, Inc. // Copyright (C) 1997, 1998, 1999, 2001 Free Software Foundation, Inc.
// //
// This file is part of the GNU ISO C++ Library. This library is free // This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the // software; you can redistribute it and/or modify it under the
@ -38,8 +38,8 @@
#include <bits/std_ostream.h> #include <bits/std_ostream.h>
#include <bits/std_istream.h> #include <bits/std_istream.h>
namespace std { namespace std
{
extern istream cin; extern istream cin;
extern ostream cout; extern ostream cout;
extern ostream cerr; extern ostream cerr;
@ -55,4 +55,6 @@ namespace std {
static ios_base::Init __ioinit; static ios_base::Init __ioinit;
} // namespace std } // namespace std
#endif /* _CPP_IOSTREAM */ #endif

6
libstdc++-v3/src/Makefile.am
View file

@ -1,6 +1,6 @@
## Makefile for the src subdirectory of the GNU C++ Standard library. ## Makefile for the src subdirectory of the GNU C++ Standard library.
## ##
## Copyright (C) 1997, 1998, 1999, 2000 Free Software Foundation, Inc. ## Copyright (C) 1997, 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
## ##
## This file is part of the libstdc++ version 3 distribution. ## This file is part of the libstdc++ version 3 distribution.
## Process this file with automake to produce Makefile.in. ## Process this file with automake to produce Makefile.in.
@ -21,7 +21,7 @@
## Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, ## Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
## USA. ## USA.
## $Id: Makefile.am,v 1.61 2000/12/23 07:13:57 bkoz Exp $ ## $Id: Makefile.am,v 1.62 2001/01/04 04:21:42 bkoz Exp $
AUTOMAKE_OPTIONS = 1.3 gnits AUTOMAKE_OPTIONS = 1.3 gnits
MAINT_CHARSET = latin1 MAINT_CHARSET = latin1
@ -176,7 +176,7 @@ sources = \
limitsMEMBERS.cc \ limitsMEMBERS.cc \
complex_io.cc \ complex_io.cc \
stdexcept.cc bitset.cc \ stdexcept.cc bitset.cc \
c++io.cc ios.cc stdstreams.cc strstream.cc \ c++io.cc ios.cc strstream.cc \
locale.cc localename.cc codecvt.cc \ locale.cc localename.cc codecvt.cc \
locale-inst.cc stl-inst.cc misc-inst.cc valarray-inst.cc string-inst.cc locale-inst.cc stl-inst.cc misc-inst.cc valarray-inst.cc string-inst.cc

8
libstdc++-v3/src/Makefile.in
View file

@ -170,7 +170,7 @@ std_headers = algorithm bitset complex deque fstream functional iomanip ios i
build_headers = bits/std_limits.h bits/c++config.h bits/c++io.h bits/c++threads.h bits/atomicity.h bits/os_defines.h bits/ctype_base.h bits/ctype_noninline.h bits/ctype_inline.h build_headers = bits/std_limits.h bits/c++config.h bits/c++io.h bits/c++threads.h bits/atomicity.h bits/os_defines.h bits/ctype_base.h bits/ctype_noninline.h bits/ctype_inline.h
sources = limitsMEMBERS.cc complex_io.cc stdexcept.cc bitset.cc c++io.cc ios.cc stdstreams.cc strstream.cc locale.cc localename.cc codecvt.cc locale-inst.cc stl-inst.cc misc-inst.cc valarray-inst.cc string-inst.cc sources = limitsMEMBERS.cc complex_io.cc stdexcept.cc bitset.cc c++io.cc ios.cc strstream.cc locale.cc localename.cc codecvt.cc locale-inst.cc stl-inst.cc misc-inst.cc valarray-inst.cc string-inst.cc
wstring_sources = wstring-inst.cc wstring_sources = wstring-inst.cc
@ -258,9 +258,9 @@ libinst_wstring_la_LDFLAGS =
libinst_wstring_la_LIBADD = libinst_wstring_la_LIBADD =
libinst_wstring_la_OBJECTS = wstring-inst.lo libinst_wstring_la_OBJECTS = wstring-inst.lo
libstdc___la_OBJECTS = limitsMEMBERS.lo complex_io.lo stdexcept.lo \ libstdc___la_OBJECTS = limitsMEMBERS.lo complex_io.lo stdexcept.lo \
bitset.lo c++io.lo ios.lo stdstreams.lo strstream.lo locale.lo \ bitset.lo c++io.lo ios.lo strstream.lo locale.lo localename.lo \
localename.lo codecvt.lo locale-inst.lo stl-inst.lo misc-inst.lo \ codecvt.lo locale-inst.lo stl-inst.lo misc-inst.lo valarray-inst.lo \
valarray-inst.lo string-inst.lo string-inst.lo
CXXFLAGS = @CXXFLAGS@ CXXFLAGS = @CXXFLAGS@
CXXCOMPILE = $(CXX) $(DEFS) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS) CXXCOMPILE = $(CXX) $(DEFS) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS)
CXXLD = $(CXX) CXXLD = $(CXX)

77
libstdc++-v3/src/ios.cc
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@ -32,7 +32,8 @@
// //
#include <bits/std_ios.h> #include <bits/std_ios.h>
#include <bits/std_iostream.h> #include <bits/std_ostream.h>
#include <bits/std_istream.h>
#include <bits/std_fstream.h> #include <bits/std_fstream.h>
namespace std namespace std
@ -104,9 +105,20 @@ namespace std
const ios_base::seekdir ios_base::cur; const ios_base::seekdir ios_base::cur;
const ios_base::seekdir ios_base::end; const ios_base::seekdir ios_base::end;
int ios_base::Init::_S_ios_base_init = 0;
const int ios_base::_S_local_words; const int ios_base::_S_local_words;
int ios_base::Init::_S_ios_base_init = 0;
bool ios_base::Init::_S_synced_with_stdio = true;
istream cin(NULL);
ostream cout(NULL);
ostream cerr(NULL);
ostream clog(NULL);
#ifdef _GLIBCPP_USE_WCHAR_T
wistream wcin(NULL);
wostream wcout(NULL);
wostream wcerr(NULL);
wostream wclog(NULL);
#endif
ios_base::failure::failure(const string& __str) ios_base::failure::failure(const string& __str)
{ {
@ -126,40 +138,30 @@ namespace std
if (++_S_ios_base_init == 1) if (++_S_ios_base_init == 1)
{ {
// NB: std_iostream.h creates the four standard files with // NB: std_iostream.h creates the four standard files with
// default buffers. At this point, we swap out the default // NULL buffers. At this point, we swap out these placeholder
// buffers for the properly-constructed ones, and dispose of // objects for the properly-constructed ones
// the default buffers.
streambuf* __old;
_M_cout = new filebuf(1, "stdout", ios_base::out); _M_cout = new filebuf(1, "stdout", ios_base::out);
_M_cin = new filebuf(0, "stdin", ios_base::in); _M_cin = new filebuf(0, "stdin", ios_base::in);
_M_cerr = new filebuf(2, "stderr", ios_base::out); _M_cerr = new filebuf(2, "stderr", ios_base::out);
__old = cout.rdbuf(_M_cout); new (&cout) ostream(_M_cout);
__old->~streambuf(); new (&cin) istream(_M_cin);
__old = cin.rdbuf(_M_cin); new (&cerr) ostream(_M_cerr);
__old->~streambuf(); new (&clog) ostream(_M_cerr);
cin.tie(&cout); cin.tie(&cout);
__old = cerr.rdbuf(_M_cerr);
__old->~streambuf();
cerr.flags(ios_base::unitbuf); cerr.flags(ios_base::unitbuf);
__old = clog.rdbuf(_M_cerr);
__old->~streambuf();
#ifdef _GLIBCPP_USE_WCHAR_T #ifdef _GLIBCPP_USE_WCHAR_T
wstreambuf* __wold;
_M_wcout = new wfilebuf(1, "stdout", ios_base::out); _M_wcout = new wfilebuf(1, "stdout", ios_base::out);
_M_wcin = new wfilebuf(0, "stdin", ios_base::in); _M_wcin = new wfilebuf(0, "stdin", ios_base::in);
_M_wcerr = new wfilebuf(2, "stderr", ios_base::out); _M_wcerr = new wfilebuf(2, "stderr", ios_base::out);
__wold = wcout.rdbuf(_M_wcout); new (&wcout) wostream(_M_wcout);
__wold->~wstreambuf(); new (&wcin) wistream(_M_wcin);
__wold = wcin.rdbuf(_M_wcin); new (&wcerr) wostream(_M_wcerr);
__wold->~wstreambuf(); new (&wclog) wostream(_M_wcerr);
wcin.tie(&wcout); wcin.tie(&cout);
__wold = wcerr.rdbuf(_M_wcerr);
__wold->~wstreambuf();
wcerr.flags(ios_base::unitbuf); wcerr.flags(ios_base::unitbuf);
__wold = wclog.rdbuf(_M_wcerr);
__wold->~wstreambuf();
#endif #endif
_M_synced_with_stdio = true; ios_base::Init::_S_synced_with_stdio = true;
} }
} }
@ -314,13 +316,15 @@ namespace std
{ {
#ifdef _GLIBCPP_RESOLVE_LIB_DEFECTS #ifdef _GLIBCPP_RESOLVE_LIB_DEFECTS
// 49. Underspecification of ios_base::sync_with_stdio // 49. Underspecification of ios_base::sync_with_stdio
bool __ret = __ioinit._M_synced_with_stdio; bool __ret = ios_base::Init::_S_synced_with_stdio;
#endif #endif
// Turn off sync with C FILE* for cin, cout, cerr, clog iff // Turn off sync with C FILE* for cin, cout, cerr, clog iff
// currently synchronized. // currently synchronized.
if (!__sync && __ret) if (!__sync && __ret)
{ {
#if 0
// no longer need to do this
// Need to dispose of the buffers created at initialization. // Need to dispose of the buffers created at initialization.
__ioinit._M_cout->~filebuf(); __ioinit._M_cout->~filebuf();
__ioinit._M_cin->~filebuf(); __ioinit._M_cin->~filebuf();
@ -336,23 +340,10 @@ namespace std
cerr.rdbuf(__ioinit._M_cerr); cerr.rdbuf(__ioinit._M_cerr);
cerr.flags(ios_base::unitbuf); cerr.flags(ios_base::unitbuf);
clog.rdbuf(__ioinit._M_cerr); clog.rdbuf(__ioinit._M_cerr);
#ifdef _GLIBCPP_USE_WCHAR_T
__ioinit._M_wcout->~wfilebuf();
__ioinit._M_wcin->~wfilebuf();
__ioinit._M_wcerr->~wfilebuf();
__ioinit._M_wcout = new wfilebuf();
__ioinit._M_wcin = new wfilebuf();
__ioinit._M_wcerr = new wfilebuf();
__ioinit._M_wcout->open("wstdout", ios_base::out);
__ioinit._M_wcin->open("wstdin", ios_base::in);
__ioinit._M_wcerr->open("wstderr", ios_base::out);
wcout.rdbuf(__ioinit._M_wcout);
wcin.rdbuf(__ioinit._M_wcin);
wcerr.rdbuf(__ioinit._M_wcerr);
wcerr.flags(ios_base::unitbuf);
wclog.rdbuf(__ioinit._M_wcerr);
#endif #endif
__ioinit._M_synced_with_stdio = false; #ifdef _GLIBCPP_USE_WCHAR_T
#endif
ios_base::Init::_S_synced_with_stdio = false;
} }
return __ret; return __ret;

48
libstdc++-v3/src/stdstreams.cc
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@ -1,48 +0,0 @@
// Copyright (C) 1997-1999 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 2, or (at your option)
// any later version.
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING. If not, write to the Free
// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
// USA.
// As a special exception, you may use this file as part of a free software
// library without restriction. Specifically, if other files instantiate
// templates or use macros or inline functions from this file, or you compile
// this file and link it with other files to produce an executable, this
// file does not by itself cause the resulting executable to be covered by
// the GNU General Public License. This exception does not however
// invalidate any other reasons why the executable file might be covered by
// the GNU General Public License.
#include <bits/std_istream.h>
#include <bits/std_ostream.h>
#include <bits/std_fstream.h>
namespace std {
filebuf __cfileinit;
istream cin(&__cfileinit);
ostream cout(&__cfileinit);
ostream cerr(&__cfileinit);
ostream clog(&__cfileinit);
#ifdef _GLIBCPP_USE_WCHAR_T
wfilebuf __wfileinit;
wistream wcin(&__wfileinit);
wostream wcout(&__wfileinit);
wostream wcerr(&__wfileinit);
wostream wclog(&__wfileinit);
#endif
} // std