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-rw-r--r--test/Sema/array-bounds.c16
1 files changed, 16 insertions, 0 deletions
diff --git a/test/Sema/array-bounds.c b/test/Sema/array-bounds.c
new file mode 100644
index 0000000000..b540885547
--- /dev/null
+++ b/test/Sema/array-bounds.c
@@ -0,0 +1,16 @@
+// RUN: %clang_cc1 -verify %s
+
+int foo() {
+ int x[2];
+ int y[2];
+ int *p = &y[2]; // no-warning
+ (void) sizeof(x[2]); // no-warning
+ y[2] = 2; // expected-warning{{array index excedes last array element}}
+ return x[2] + // expected-warning{{array index excedes last array element}}
+ y[-1] + // expected-warning{{array index precedes first array element}}
+ x[sizeof(x)] + // expected-warning{{array index excedes last array element}}
+ x[sizeof(x) / sizeof(x[0])] + // expected-warning{{array index excedes last array element}}
+ x[sizeof(x) / sizeof(x[0]) - 1] + // no-warning
+ x[sizeof(x[2])]; // expected-warning{{array index excedes last array element}}
+}
+