re PR preprocessor/33305 (We should warn about empty macro arguments)

2008-07-03  Andrew Haley  <aph@redhat.com>

        PR preprocessor/33305
        * gcc.dg/cpp/avoidpaste1.c: Use dg-options "-ansi" to avoid
        "-pedantic".
        * gcc.dg/cpp/avoidpaste2.c: Likewise
        * gcc.dg/cpp/20000519-1.c: Likewise.
        * g++.dg/ext/gnu-inline-global-reject.C: Likewise.
        * gcc.dg/cpp/c99-empty-macro-args.c: New test.
        * gcc.dg/cpp/c90-empty-macro-args.c: New test.

From-SVN: r137411

1 files changed, 19 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.dg/cpp/c99-empty-macro-args.c b/gcc/testsuite/gcc.dg/cpp/c99-empty-macro-args.c
new file mode 100644
index 0000000..e1e0c61
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/cpp/c99-empty-macro-args.c
@@ -0,0 +1,19 @@
+/* { dg-do compile } */
+/* { dg-options "-std=c99 -pedantic" } */
+
+#define f(a,b)   f2(a,,b) 
+#define f2(a,b,c) a; b; c;
+#define f3(a)    a
+
+#define g()   p()
+
+void p(void) {}
+
+
+void foo(void)
+{
+    f(p(),p());
+    f2(p(),,p());
+    f3();
+    g();
+}