libstdc++/9404

[paolo at gcc dot gnu dot org]

The following reply was made to PR libstdc++/9404; it has been noted by GNATS.

From: paolo at gcc dot gnu dot org
To: gcc-gnats at gcc dot gnu dot org
Cc:  
Subject: libstdc++/9404
Date: 24 Feb 2003 18:22:58 -0000

 CVSROOT:	/cvs/gcc
 Module name:	gcc
 Changes by:	paolo at gcc dot gnu dot org	2003-02-24 18:22:58
 
 Modified files:
 	libstdc++-v3   : ChangeLog 
 	libstdc++-v3/include/bits: fstream.tcc sstream.tcc streambuf.tcc 
 	libstdc++-v3/include/std: std_fstream.h std_sstream.h 
 	                          std_streambuf.h 
 	libstdc++-v3/testsuite/27_io: filebuf_virtuals.cc 
 	                              stringbuf_virtuals.cc 
 
 Log message:
 	2003-02-24  Paolo Carlini <pcarlini at unitus dot it>
 	Nathan Myers <ncm at cantrip dot org>
 	
 	PR libstdc++/9404, PR libstdc++/9701 (partial)
 	(aka pptr == epptr implies overflow)
 	* include/bits/fstream.tcc (_M_allocate_internal_buffer):
 	Consistently, _M_out_end points to the end of the buffer just
 	created.
 	(overflow): Tweak to use _M_out_buf_size().
 	(_M_convert_to_external): The role of the old _M_out_end is
 	now played by _M_out_lim.
 	(_M_really_overflow): Likewise.
 	(seekoff): Likewise.
 	(setbuf): _M_out_end points to the end of the external buffer.
 	* include/bits/sstream.tcc (overflow): Rewrote, taking into
 	account the resolution of DR 169 (TC).
 	(seekoff): Use _M_string.capacity(); ios_base::end is now _M_out_lim.
 	(seekpos): Use _M_string.capacity(); tweak.
 	* include/bits/streambuf.tcc (sputc, xsputn): Remove comments.
 	* include/std/std_fstream.h (sync): The role of the old
 	_M_out_end is now played by _M_out_lim.
 	(_M_set_indeterminate): Use _M_set_determinate.
 	(_M_set_determinate): _M_out_end is now _M_out_lim.
 	(_M_is_indeterminate): Likewise.
 	* include/std/std_sstream.h (str()): _M_out_end is now _M_out_lim.
 	(_M_stringbuf_init): Don't set _M_buf_size, unused for sstreams,
 	which have the information readily available as _M_string.capacity();
 	for ate and app modes, pass the string size to _M_really_sync.
 	(_M_really_sync): Consistently set _M_out_end and _M_out_lim, to
 	point to the end of the buffer (i.e., epptr) and to the string end,
 	respectively.
 	* include/std/std_streambuf.h: tweak comments, add _M_out_lim,
 	which points to the right limit of the used put area.
 	(_M_out_cur_move): The role of the old _M_out_end is now played
 	by _M_out_lim.
 	(_M_out_buf_size): Simplify: now (when _M_out_cur) return simply
 	_M_out_end  - _M_out_cur (i.e., pptr), _very_ close to the letter
 	of the standard.
 	(basic_streambuf()): Initialize _M_out_lim too.
 	* testsuite/27_io/filebuf_virtuals.cc (test10): Trivial tweak.
 	* testsuite/27_io/filebuf_virtuals.cc (test11): Add.
 	* testsuite/27_io/stringbuf_virtuals.cc (test09): Add.
 
 Patches:
 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libstdc++-v3/ChangeLog.diff?cvsroot=gcc&r1=1.1558&r2=1.1559
 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libstdc++-v3/include/bits/fstream.tcc.diff?cvsroot=gcc&r1=1.50&r2=1.51
 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libstdc++-v3/include/bits/sstream.tcc.diff?cvsroot=gcc&r1=1.16&r2=1.17
 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libstdc++-v3/include/bits/streambuf.tcc.diff?cvsroot=gcc&r1=1.25&r2=1.26
 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libstdc++-v3/include/std/std_fstream.h.diff?cvsroot=gcc&r1=1.20&r2=1.21
 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libstdc++-v3/include/std/std_sstream.h.diff?cvsroot=gcc&r1=1.14&r2=1.15
 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libstdc++-v3/include/std/std_streambuf.h.diff?cvsroot=gcc&r1=1.13&r2=1.14
 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libstdc++-v3/testsuite/27_io/filebuf_virtuals.cc.diff?cvsroot=gcc&r1=1.12&r2=1.13
 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libstdc++-v3/testsuite/27_io/stringbuf_virtuals.cc.diff?cvsroot=gcc&r1=1.5&r2=1.6