vendor/libc++/libc++-release_370-r246257

1 files changed, 37 insertions, 0 deletions

diff --git a/test/std/numerics/complex.number/complex.special/double_float_implicit.pass.cpp b/test/std/numerics/complex.number/complex.special/double_float_implicit.pass.cpp
new file mode 100644
index 0000000000000..298aaa3a7a8a2
--- /dev/null
+++ b/test/std/numerics/complex.number/complex.special/double_float_implicit.pass.cpp
@@ -0,0 +1,37 @@
+//===----------------------------------------------------------------------===//
+//
+//                     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>
+
+// template<> class complex<double>
+// {
+// public:
+//     constexpr complex(const complex<float>&);
+// };
+
+#include <complex>
+#include <cassert>
+
+int main()
+{
+    {
+    const std::complex<float> cd(2.5, 3.5);
+    std::complex<double> cf = cd;
+    assert(cf.real() == cd.real());
+    assert(cf.imag() == cd.imag());
+    }
+#ifndef _LIBCPP_HAS_NO_CONSTEXPR
+    {
+    constexpr std::complex<float> cd(2.5, 3.5);
+    constexpr std::complex<double> cf = cd;
+    static_assert(cf.real() == cd.real(), "");
+    static_assert(cf.imag() == cd.imag(), "");
+    }
+#endif
+}