1 files changed, 46 insertions, 0 deletions
diff --git a/clang/test/Preprocessor/macro_fn.c b/clang/test/Preprocessor/macro_fn.c
new file mode 100644
index 0000000..85733b4
--- /dev/null
+++ b/clang/test/Preprocessor/macro_fn.c
@@ -0,0 +1,46 @@
+/* RUN: %clang_cc1 %s -Eonly -std=c89 -pedantic -verify
+*/
+/* PR3937 */
+#define zero() 0
+#define one(x) 0
+#define two(x, y) 0
+#define zero_dot(...) 0   /* expected-warning {{variadic macros were introduced in C99}} */
+#define one_dot(x, ...) 0 /* expected-warning {{variadic macros were introduced in C99}} */
+
+zero()
+zero(1);          /* expected-error {{too many arguments provided to function-like macro invocation}} */
+zero(1, 2, 3);    /* expected-error {{too many arguments provided to function-like macro invocation}} */
+
+one()   /* ok */
+one(a)
+one(a,)           /* expected-error {{too many arguments provided to function-like macro invocation}} */
+one(a, b)         /* expected-error {{too many arguments provided to function-like macro invocation}} */
+
+two()       /* expected-error {{too few arguments provided to function-like macro invocation}} */
+two(a)      /* expected-error {{too few arguments provided to function-like macro invocation}} */
+two(a,b)
+two(a, )    /* expected-warning {{empty macro arguments were standardized in C99}} */
+two(a,b,c)  /* expected-error {{too many arguments provided to function-like macro invocation}} */
+two(
+    ,     /* expected-warning {{empty macro arguments were standardized in C99}} */
+    ,     /* expected-warning {{empty macro arguments were standardized in C99}}  \
+             expected-error {{too many arguments provided to function-like macro invocation}} */
+    )     
+two(,)      /* expected-warning 2 {{empty macro arguments were standardized in C99}} */
+
+
+
+/* PR4006 & rdar://6807000 */
+#define e(...) __VA_ARGS__  /* expected-warning {{variadic macros were introduced in C99}} */
+e(x)
+e()
+
+zero_dot()
+one_dot(x)  /* empty ... argument: expected-warning {{varargs argument missing, but tolerated as an extension}}  */
+one_dot()   /* empty first argument, elided ...: expected-warning {{varargs argument missing, but tolerated as an extension}} */
+
+
+/* rdar://6816766 - Crash with function-like macro test at end of directive. */
+#define E() (i == 0)
+#if E
+#endif