re PR libstdc++/11723 (ctype<wchar_t>::do_is(mask, wchar_t) is slow)
2003-12-16 Paolo Carlini <pcarlini@suse.de>
PR libstdc++/11723
* include/bits/locale_facets.h: Add _M_bit and _M_wmask,
used to speed up the computation of ctype::do_is.
* config/locale/generic/ctype_members.cc
(_M_initialize_ctype): Fill _M_bit and _M_wmask.
(ctype::do_is): Use _M_bit and _M_wmask.
* config/locale/gnu/ctype_members.cc: Likewise.
* testsuite/performance/is_wchar_t.cc: New.