2005-11-17  Matthias Clasen  <mclasen@redhat.com>

	* tests/Makefile.am:
	* tests/utf8-pointer.c: Unit tests for g_utf8_pointer_to_offset
	and g_utf8_offset_to_pointer.

	* glib/gutf8.c (g_utf8_pointer_to_offset)
	(g_utf8_offset_to_pointer): Handle negative offsets, and use
	"stutter stepping" for going backwards. (#320638, Larry
	Ewing)