* stdexcepti.cc (__out_of_range): New fn.
	(__length_error): New fn.

	* std/bastring.h (OUTOFRANGE): Fix logic.  Use throwing functions.
	(LENGTHERROR): Likewise.
	Revert Oct 2 changes.
	* string: Revert Oct 2 changes.

	* std/{f,d,ld}complex.h: Replace guiding fns if not -ansi.

From-SVN: r15885