1 /* { dg-do run } */
2 
3 /* Test that, when a macro expansion spills into the source file, we
4    expand macros we suck in from there, as the standard clearly states
5    they are not nested.
6 
7    Submitter: Neil Booth, with minor modifications to the originals. 3
8    Dec 2000.
9    Source: PR 962 and Thomas Pornin.  */
10 
11 extern void abort (void);
12 int e = 10, f = 100;
13 
14 #define e(n) 4 + n
15 #define X e
16 #define f(x) x
17 #define h(x) x + f
18 
19 int
20 main ()
21 {
22   if (X(X) != 14)		/* Should expand to "4 + e".  */
23     abort ();
24 
25   if (X(X(f)) != 108)		/* Should expand to "4 + 4 + f".  */
26     abort ();
27 
28   if (h(e)(h(e)) != 120)	/* Should expand to "e + e + f".  */
29     abort ();
30 
31   return 0;
32 }
33