Add the new unit test that I managed to leave out of r136997 :/
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@137242 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/SemaCXX/array-bounds-ptr-arith.cpp b/test/SemaCXX/array-bounds-ptr-arith.cpp
new file mode 100644
index 0000000..ce1ace6
--- /dev/null
+++ b/test/SemaCXX/array-bounds-ptr-arith.cpp
@@ -0,0 +1,33 @@
+// RUN: %clang_cc1 -verify -Warray-bounds-pointer-arithmetic %s
+
+void swallow (const char *x) { (void)x; }
+void test_pointer_arithmetic(int n) {
+ const char hello[] = "Hello world!"; // expected-note 2 {{declared here}}
+ const char *helloptr = hello;
+
+ swallow("Hello world!" + 6); // no-warning
+ swallow("Hello world!" - 6); // expected-warning {{refers before the beginning of the array}}
+ swallow("Hello world!" + 14); // expected-warning {{refers past the end of the array}}
+ swallow("Hello world!" + 13); // no-warning
+
+ swallow(hello + 6); // no-warning
+ swallow(hello - 6); // expected-warning {{refers before the beginning of the array}}
+ swallow(hello + 14); // expected-warning {{refers past the end of the array}}
+ swallow(hello + 13); // no-warning
+
+ swallow(helloptr + 6); // no-warning
+ swallow(helloptr - 6); // no-warning
+ swallow(helloptr + 14); // no-warning
+ swallow(helloptr + 13); // no-warning
+
+ double numbers[2]; // expected-note {{declared here}}
+ swallow((char*)numbers + sizeof(double)); // no-warning
+ swallow((char*)numbers + 60); // expected-warning {{refers past the end of the array}}
+
+ char buffer[5]; // expected-note 2 {{declared here}}
+ // TODO: Add FixIt notes for adding parens around non-ptr part of arith expr
+ swallow(buffer + sizeof("Hello")-1); // expected-warning {{refers past the end of the array}}
+ swallow(buffer + (sizeof("Hello")-1)); // no-warning
+ if (n > 0 && n <= 6) swallow(buffer + 6 - n); // expected-warning {{refers past the end of the array}}
+ if (n > 0 && n <= 6) swallow(buffer + (6 - n)); // no-warning
+}
