1 files changed, 52 insertions, 0 deletions
diff --git a/test/std/numerics/complex.number/complex.member.ops/minus_equal_complex.pass.cpp b/test/std/numerics/complex.number/complex.member.ops/minus_equal_complex.pass.cpp
new file mode 100644
index 000000000000..67a1c7189a29
--- /dev/null
+++ b/test/std/numerics/complex.number/complex.member.ops/minus_equal_complex.pass.cpp
@@ -0,0 +1,52 @@
+//===----------------------------------------------------------------------===//
+//
+//                     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 complex& rhs);
+
+#include <complex>
+#include <cassert>
+
+template <class T>
+void
+test()
+{
+    std::complex<T> c;
+    const std::complex<T> c2(1.5, 2.5);
+    assert(c.real() == 0);
+    assert(c.imag() == 0);
+    c -= c2;
+    assert(c.real() == -1.5);
+    assert(c.imag() == -2.5);
+    c -= c2;
+    assert(c.real() == -3);
+    assert(c.imag() == -5);
+
+    std::complex<T> c3;
+
+    c3 = c;
+    std::complex<int> ic (1,1);
+    c3 -= ic;
+    assert(c3.real() == -4);
+    assert(c3.imag() == -6);
+
+    c3 = c;
+    std::complex<float> fc (1,1);
+    c3 -= fc;
+    assert(c3.real() == -4);
+    assert(c3.imag() == -6);
+}
+
+int main()
+{
+    test<float>();
+    test<double>();
+    test<long double>();
+}