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-rw-r--r--clang/test/SemaCXX/for-range-unused.cpp21
1 files changed, 21 insertions, 0 deletions
diff --git a/clang/test/SemaCXX/for-range-unused.cpp b/clang/test/SemaCXX/for-range-unused.cpp
new file mode 100644
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--- /dev/null
+++ b/clang/test/SemaCXX/for-range-unused.cpp
@@ -0,0 +1,21 @@
+// RUN: %clang_cc1 -fsyntax-only -verify %s -std=c++11 -Wunused
+
+// PR9968: We used to warn that __range is unused in a dependent for-range.
+
+template <typename T>
+ struct Vector {
+ void doIt() {
+ int a; // expected-warning {{unused variable 'a'}}
+
+ for (auto& e : elements)
+ ;
+ }
+
+ T elements[10];
+ };
+
+
+int main(int, char**) {
+ Vector<int> vector;
+ vector.doIt();
+}