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-rw-r--r--test/std/experimental/optional/optional.relops/greater_than.pass.cpp75
1 files changed, 75 insertions, 0 deletions
diff --git a/test/std/experimental/optional/optional.relops/greater_than.pass.cpp b/test/std/experimental/optional/optional.relops/greater_than.pass.cpp
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index 0000000000000..d51bd4f2ac466
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+++ b/test/std/experimental/optional/optional.relops/greater_than.pass.cpp
@@ -0,0 +1,75 @@
+//===----------------------------------------------------------------------===//
+//
+// 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.
+//
+//===----------------------------------------------------------------------===//
+
+// <optional>
+
+// template <class T> constexpr bool operator> (const optional<T>& x, const optional<T>& y);
+
+#include <experimental/optional>
+
+#if _LIBCPP_STD_VER > 11
+
+using std::experimental::optional;
+
+struct X
+{
+ int i_;
+
+ constexpr X(int i) : i_(i) {}
+};
+
+constexpr bool operator < ( const X &lhs, const X &rhs )
+ { return lhs.i_ < rhs.i_ ; }
+
+#endif
+
+int main()
+{
+#if _LIBCPP_STD_VER > 11
+ {
+ typedef optional<X> O;
+
+ constexpr O o1; // disengaged
+ constexpr O o2; // disengaged
+ constexpr O o3{1}; // engaged
+ constexpr O o4{2}; // engaged
+ constexpr O o5{1}; // engaged
+
+ static_assert ( !(o1 > o1), "" );
+ static_assert ( !(o1 > o2), "" );
+ static_assert ( !(o1 > o3), "" );
+ static_assert ( !(o1 > o4), "" );
+ static_assert ( !(o1 > o5), "" );
+
+ static_assert ( !(o2 > o1), "" );
+ static_assert ( !(o2 > o2), "" );
+ static_assert ( !(o2 > o3), "" );
+ static_assert ( !(o2 > o4), "" );
+ static_assert ( !(o2 > o5), "" );
+
+ static_assert ( (o3 > o1), "" );
+ static_assert ( (o3 > o2), "" );
+ static_assert ( !(o3 > o3), "" );
+ static_assert ( !(o3 > o4), "" );
+ static_assert ( !(o3 > o5), "" );
+
+ static_assert ( (o4 > o1), "" );
+ static_assert ( (o4 > o2), "" );
+ static_assert ( (o4 > o3), "" );
+ static_assert ( !(o4 > o4), "" );
+ static_assert ( (o4 > o5), "" );
+
+ static_assert ( (o5 > o1), "" );
+ static_assert ( (o5 > o2), "" );
+ static_assert ( !(o5 > o3), "" );
+ static_assert ( !(o5 > o4), "" );
+ static_assert ( !(o5 > o5), "" );
+ }
+#endif
+}