[Bug c++/31434] [4.3 regression] ICE with invalid use of parameter pack in function arg

[jakub at gcc dot gnu dot org]

------- Comment #4 from jakub at gcc dot gnu dot org  2007-09-27 16:33 -------
This is a special case of PR33509.
regenerate_decl_from_template doesn't handle error_mark_node returned from
tsubst_pack_expansion.  As tsubst_pack_expansion doesn't issue any error
in this case (it hits the
  /* We could not find any argument packs that work.  */
  if (len < 0)
    return error_mark_node;
case), I believe it is up to regenerate_decl_from_template to issue some
diagnostics.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31434