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-rw-r--r--test/std/utilities/optional/optional.relops/less_equal.pass.cpp70
1 files changed, 70 insertions, 0 deletions
diff --git a/test/std/utilities/optional/optional.relops/less_equal.pass.cpp b/test/std/utilities/optional/optional.relops/less_equal.pass.cpp
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index 000000000000..a7d594dd34a2
--- /dev/null
+++ b/test/std/utilities/optional/optional.relops/less_equal.pass.cpp
@@ -0,0 +1,70 @@
+//===----------------------------------------------------------------------===//
+//
+// 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.
+//
+//===----------------------------------------------------------------------===//
+
+// UNSUPPORTED: c++98, c++03, c++11, c++14
+// <optional>
+
+// template <class T> constexpr bool operator<= (const optional<T>& x, const optional<T>& y);
+
+#include <optional>
+
+using std::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_ ; }
+
+int main()
+{
+ {
+ 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), "" );
+ }
+}