old-autovect-branch/gcc/testsuite/gcc.dg/cpp/trad/recurse-3.c

   1 /* Tests that macros that look recursive but are not are accepted.  */
   2
   3 /* { dg-do preprocess } */
   4
   5 #define g(x) x
   6 g(g(g(g(g(g(g))))));           /* { dg-bogus "detected recursion" } */
   7
   8 /* This macro gets longer with each loop, to thwart tests for
   9    recursion based on length.  */
  10 #define f(a,b,c,d,e,f,g,h,i) a(b,c,d,e,f,g,h,i,2 3 4 5)
  11 f(f,f,f,f,f,f,f,f,f)           /* { dg-bogus "detected recursion" } */
  12
  13 /* The above cases should be enough, but this is taken from cccp
  14    sources so let's try it too.  */
  15 #define foo(x,y) bar (x (y,0), y)
  16 foo (foo, baz);        /* { dg-bogus "detected recursion" } */
  17
  18 #define mac mac/**/ro
  19 mac                    /* { dg-bogus "detected recursion" } */
  20
  21 #define mac2 mac2
  22 "mac2"                 /* { dg-bogus "detected recursion" } */
  23
  24 #define macro "macro
  25 macro mac2             /* { dg-bogus "detected recursion" } */