hb_unicode_funcs_set_combining_class_func   41 src/hbfont.c   DEF_DLL_FN (void, hb_unicode_funcs_set_combining_class_func,
hb_unicode_funcs_set_combining_class_func  123 src/hbfont.c     LOAD_DLL_FN (library, hb_unicode_funcs_set_combining_class_func);
hb_unicode_funcs_set_combining_class_func  358 src/hbfont.c     hb_unicode_funcs_set_combining_class_func (funcs, uni_combining, NULL, NULL);