1 files changed, 1 insertions, 0 deletions

diff --git a/libcxx/test/utilities/time/time.duration/time.duration.arithmetic/op_-.pass.cpp b/libcxx/test/utilities/time/time.duration/time.duration.arithmetic/op_-.pass.cpp
new file mode 100644
index 00000000000..4df2fcdc56f
--- /dev/null
+++ b/libcxx/test/utilities/time/time.duration/time.duration.arithmetic/op_-.pass.cpp
@@ -0,0 +1 @@
+//===----------------------------------------------------------------------===//
//
// ΚΚΚΚΚΚΚΚΚΚΚΚΚΚΚΚΚΚΚΚThe LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//

// <chrono>

// duration

// duration operator-() const;

#include <chrono>
#include <cassert>

int main()
{
    const std::chrono::minutes m(3);
    std::chrono::minutes m2 = -m;
    assert(m2.count() == -m.count());
}
\ No newline at end of file