codecvt_members.cc (do_out): If we can upper bound the total number of external chars to something smaller...

2003-11-19  Paolo Carlini  <pcarlini@suse.de>

	* config/locale/gnu/codecvt_members.cc (do_out): If
	we can upper bound the total number of external chars
	to something smaller than __to_end - __to, avoid the
	temporary buffer, the memcopy and simplify the loop.
	* config/locale/generic/codecvt_members.cc (do_out):
	Likewise.

From-SVN: r73733