1 /* Regression test for paste appearing at the beginning of a set of 2 actual arguments. Original bug exposed by Linux kernel. Problem 3 reported by Jakub Jelinek <jakub@redhat.com>. */ 4 5 /* 6 { dg-options "-ftrack-macro-expansion=0" } 7 { dg-do compile } 8 */ 9 10 extern int foo(int x); 11 12 #define bar(x) foo(x) 13 #define baz(x) bar(##x) 14 quux(int y)15int quux(int y) { return baz(y); } /* { dg-error "valid preprocessing" } */ 16