/* Copyright (C) 2001 Free Software Foundation, Inc. */ /* { dg-do preprocess } */ /* Source: Neil Booth, 23 Sep 2001. A tricky, pathological corner case we used to get wrong. Expansion should go as follows. The asterisk indicates the token has "blue paint" can no longer be macro expanded. We used to lose that information when parsing arguments and dropping to the lexer to get the ')'. foo ) bar foo* ) func (foo* ) foo* If we try and expand the final foo, we get an "unterminated argument list invoking macro <func>" error. If we do the right thing and leave it as is, no diagnostics are emitted. */ #define func(x) x #define bar func( #define foo bar foo foo )