1 files changed, 40 insertions, 0 deletions
diff --git a/test/std/numerics/complex.number/complex.member.ops/minus_equal_scalar.pass.cpp b/test/std/numerics/complex.number/complex.member.ops/minus_equal_scalar.pass.cpp
new file mode 100644
index 0000000000000..ddec891b25aa4
--- /dev/null
+++ b/test/std/numerics/complex.number/complex.member.ops/minus_equal_scalar.pass.cpp
@@ -0,0 +1,40 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <complex>
+
+// complex& operator-=(const T& rhs);
+
+#include <complex>
+#include <cassert>
+
+template <class T>
+void
+test()
+{
+    std::complex<T> c;
+    assert(c.real() == 0);
+    assert(c.imag() == 0);
+    c -= 1.5;
+    assert(c.real() == -1.5);
+    assert(c.imag() == 0);
+    c -= 1.5;
+    assert(c.real() == -3);
+    assert(c.imag() == 0);
+    c -= -1.5;
+    assert(c.real() == -1.5);
+    assert(c.imag() == 0);
+}
+
+int main()
+{
+    test<float>();
+    test<double>();
+    test<long double>();
+}