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-rw-r--r--test/std/experimental/utilities/meta/meta.logical/negation.pass.cpp41
1 files changed, 41 insertions, 0 deletions
diff --git a/test/std/experimental/utilities/meta/meta.logical/negation.pass.cpp b/test/std/experimental/utilities/meta/meta.logical/negation.pass.cpp
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index 0000000000000..b0d43d7e51229
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+++ b/test/std/experimental/utilities/meta/meta.logical/negation.pass.cpp
@@ -0,0 +1,41 @@
+//===----------------------------------------------------------------------===//
+//
+// 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
+// <experimental/type_traits>
+
+// template<class B> struct negation;
+// template<class B>
+// constexpr bool negation_v = negation<B>::value;
+
+#include <experimental/type_traits>
+#include <cassert>
+
+namespace ex = std::experimental;
+
+struct True { static constexpr bool value = true; };
+struct False { static constexpr bool value = false; };
+
+int main()
+{
+ static_assert (!ex::negation<std::true_type >::value, "" );
+ static_assert ( ex::negation<std::false_type>::value, "" );
+
+ static_assert (!ex::negation_v<std::true_type >, "" );
+ static_assert ( ex::negation_v<std::false_type>, "" );
+
+ static_assert (!ex::negation<True >::value, "" );
+ static_assert ( ex::negation<False>::value, "" );
+
+ static_assert (!ex::negation_v<True >, "" );
+ static_assert ( ex::negation_v<False>, "" );
+
+ static_assert ( ex::negation<ex::negation<std::true_type >>::value, "" );
+ static_assert (!ex::negation<ex::negation<std::false_type>>::value, "" );
+}