1 files changed, 18 insertions, 0 deletions
diff --git a/test/SemaCXX/complex-conversion.cpp b/test/SemaCXX/complex-conversion.cpp
new file mode 100644
index 000000000000..e8f09958165c
--- /dev/null
+++ b/test/SemaCXX/complex-conversion.cpp
@@ -0,0 +1,18 @@
+// RUN: %clang_cc1 -fsyntax-only -verify %s
+
+template<typename T> void take(T);
+
+void func(float Real, _Complex float Complex) {
+  Real += Complex; // expected-error {{assigning to 'float' from incompatible type '_Complex float'}}
+  Real += (float)Complex;
+
+  Real = Complex; // expected-error {{implicit conversion from '_Complex float' to 'float' is not permitted in C++}}
+  Real = (float)Complex;
+
+  take<float>(Complex); // expected-error {{implicit conversion from '_Complex float' to 'float' is not permitted in C++}}
+  take<double>(1.0i); // expected-error {{implicit conversion from '_Complex double' to 'double' is not permitted in C++}}
+  take<_Complex float>(Complex);
+
+  // Conversion to bool doesn't actually discard the imaginary part.
+  take<bool>(Complex);
+}