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-rw-r--r--test/Preprocessor/macro_fn.c27
1 files changed, 27 insertions, 0 deletions
diff --git a/test/Preprocessor/macro_fn.c b/test/Preprocessor/macro_fn.c
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+++ b/test/Preprocessor/macro_fn.c
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+/* RUN: clang-cc %s -Eonly -std=c89 -pedantic -verify
+*/
+/* PR3937 */
+#define zero() 0
+#define one(x) 0
+#define two(x, y) 0
+
+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}} */