[Bug libstdc++/13341] ctype<wchar_t>::do_narrow(wchar_t, char) is slow

[cvs-commit at gcc dot gnu dot org]

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2003-12-12 19:44 -------
Subject: Bug 13341

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	paolo@gcc.gnu.org	2003-12-12 19:44:17

Modified files:
	libstdc++-v3   : ChangeLog 
	libstdc++-v3/include/bits: locale_facets.h 
	libstdc++-v3/src: ctype.cc 
	libstdc++-v3/config/locale/gnu: ctype_members.cc 
	libstdc++-v3/config/locale/generic: ctype_members.cc 
Added files:
	libstdc++-v3/testsuite/performance: narrow_widen_wchar_t.cc 

Log message:
	2003-12-12  Paolo Carlini  <pcarlini@suse.de>
	Benjamin Kosnik  <bkoz@redhat.com>
	
	PR libstdc++/13341
	* include/bits/locale_facets.h (ctype<wchar_t>): Declare
	_M_initialize_ctype() and _M_narrow_ok, _M_narrow and _M_widen.
	* src/ctype.cc (ctype<wchar_t>::ctype(size_t),
	ctype<wchar_t>::ctype(__c_locale, size_t)): Use
	_M_initialize_ctype to fill _M_narrow and _M_widen.
	(ctype_byname<wchar_t>::ctype_byname(const char*, size_t)):
	Likewise.
	* config/locale/generic/ctype_members.cc (do_narrow, do_widen)
	Use _M_narrow and _M_widen when possible, instead of calling
	wctob and btowc, respectively.
	(_M_initialize_ctype): Define, it fills at construction time
	_M_narrow and _M_widen.
	* config/locale/gnu/ctype_members.cc: Likewise.
	* testsuite/performance/narrow_widen_wchar_t.cc: New.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libstdc++-v3/ChangeLog.diff?cvsroot=gcc&r1=1.2154&r2=1.2155
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libstdc++-v3/include/bits/locale_facets.h.diff?cvsroot=gcc&r1=1.73&r2=1.74
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libstdc++-v3/src/ctype.cc.diff?cvsroot=gcc&r1=1.6&r2=1.7
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libstdc++-v3/config/locale/gnu/ctype_members.cc.diff?cvsroot=gcc&r1=1.13&r2=1.14
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libstdc++-v3/config/locale/generic/ctype_members.cc.diff?cvsroot=gcc&r1=1.8&r2=1.9
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libstdc++-v3/testsuite/performance/narrow_widen_wchar_t.cc.diff?cvsroot=gcc&r1=NONE&r2=1.1



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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13341