[Bug libstdc++/16612] [3.4 only] empty basic_strings can't live in shared memory

[cvs-commit at gcc dot gnu dot org]

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2004-10-28 21:53 -------
Subject: Bug 16612

CVSROOT:	/cvs/gcc
Module name:	gcc
Branch: 	gcc-3_4-branch
Changes by:	paolo@gcc.gnu.org	2004-10-28 21:52:42

Modified files:
	libstdc++-v3   : ChangeLog configure configure.ac acinclude.m4 
	                 aclocal.m4 acconfig.h README config.h.in 
	libstdc++-v3/include/bits: basic_string.h basic_string.tcc 
	libstdc++-v3/docs/html: configopts.html 

Log message:
	2004-10-28  Paolo Carlini  <pcarlini@suse.de>
	
	* include/bits/basic_string.tcc (_M_mutate): Do not reallocate
	unnecessarily when _M_rep() == &_S_empty_rep() and __new_size
	== capacity() (== 0): is ok to just leave everything unchanged.
	
	2004-10-28  Paolo Carlini  <pcarlini@suse.de>
	
	PR libstdc++/16612
	* include/bits/basic_string.h (_M_dispose, _M_refcopy,
	basic_string()): When _GLIBCXX_FULLY_DYNAMIC_STRING is defined,
	don't deal with _S_empty_rep.
	* include/bits/basic_string.tcc (_S_construct, _M_destroy,
	_M_leak_hard, _M_mutate): Likewise.
	* acinclude.m4 (GLIBCXX_ENABLE_FULLY_DYNAMIC_STRING): New.
	* acconfig.h: Add corresponding undef.
	* configure.ac: Use GLIBCXX_ENABLE_FULLY_DYNAMIC_STRING.
	* docs/html/configopts.html: Document --enable-fully-dynamic-string.
	* aclocal.m4: Regenerate.
	* configure: Likewise.
	* config.h.in: Likewise.
	
	2004-10-28  Paolo Carlini  <pcarlini@suse.de>
	
	* README: Remove obsolete entry about include/c_shadow.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libstdc++-v3/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.2224.2.191&r2=1.2224.2.192
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libstdc++-v3/configure.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.373.4.20&r2=1.373.4.21
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libstdc++-v3/configure.ac.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.14.4.5&r2=1.14.4.6
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libstdc++-v3/acinclude.m4.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.280.4.6&r2=1.280.4.7
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libstdc++-v3/aclocal.m4.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.296.4.6&r2=1.296.4.7
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libstdc++-v3/acconfig.h.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.39.4.2&r2=1.39.4.3
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libstdc++-v3/README.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.16&r2=1.16.10.1
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libstdc++-v3/config.h.in.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.79.4.3&r2=1.79.4.4
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libstdc++-v3/include/bits/basic_string.h.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.41.4.5&r2=1.41.4.6
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libstdc++-v3/include/bits/basic_string.tcc.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.46.4.7&r2=1.46.4.8
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libstdc++-v3/docs/html/configopts.html.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.33.4.3&r2=1.33.4.4



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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16612