Re: some question about gc

[zouqiong]

1.
in the gt-c-decl.h,
three functions about lang_decl,
gt_pch_nx_lang_decl(),gt_ggc_mx_lang_decl, gt_pch_g_9lang_decl(),
what are the differences between the three functions?

2.
i can find the prefixes in the gengtype.c,

what are they setting for?

static const struct write_types_data ggc_wtd =
{
  "ggc_m", NULL, "ggc_mark", "ggc_test_and_set_mark", NULL,
  "GC marker procedures.  "
};
                                                                                
                                           static const struct write_types_data 
pch_wtd =
{
  "pch_n", "pch_p", "gt_pch_note_object", "gt_pch_note_object",
  "gt_pch_note_reorder",
  "PCH type-walking procedures.  "
};