1 files changed, 37 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/cpp/macro3.c b/gcc/testsuite/gcc.dg/cpp/macro3.c
new file mode 100644
index 000000000..e6a5ffc1e
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/cpp/macro3.c
@@ -0,0 +1,37 @@
+/* { dg-do run } */
+/* { dg-options "-std=c99" } */
+
+/* First two tests sourced from a bug report of Thomas Pornin.
+   Varargs test source Jamie Lokier.
+   All adapted for the testsuite by Neil Booth, Oct 2000.  */
+
+/* Tests various macro abuse is correctly expanded.  */
+static int d = 4;
+#define c(x) d
+#define d(x) c(2)
+
+#if 0
+/* This macro chain above sucks up the whole file once it starts, so
+   I've commented it out.  The example is left for idle amusement :-) */
+#define a(x) b(
+#define b(x) a(
+#endif
+
+#define apply(...)   apply2 (__VA_ARGS__)  
+#define half(x)      ((x) / 2)
+#define apply2(f,x)  f (x)
+
+extern void abort (void);
+extern void exit (int);
+
+int main()
+{
+  /* Expands to c(2) then d.  */
+  if (c(c)(c) != 4)
+    abort ();
+
+  if (apply (half, 200) != 100)
+    abort ();
+
+  exit (0);
+}