gcc/testsuite/gcc.dg/cpp/paste6.c


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15

/* Regression test for paste appearing at the beginning of a set of
   actual arguments.  Original bug exposed by Linux kernel.  Problem
   reported by Jakub Jelinek <jakub@redhat.com>.  */

/*
  { dg-options "-ftrack-macro-expansion=0" }
  { dg-do compile }
*/

extern int foo(int x);

#define bar(x) foo(x)
#define baz(x) bar(##x)

int quux(int y) { return baz(y); }  /* { dg-error "valid preprocessing" } */