Implement conjuntion/disjuntion/negation for LFTS v2. Same code and tests for the ones in std::

llvm-svn: 287988

3 files changed, 177 insertions, 0 deletions

diff --git a/libcxx/test/std/experimental/utilities/meta/meta.logical/conjunction.pass.cpp b/libcxx/test/std/experimental/utilities/meta/meta.logical/conjunction.pass.cpp
new file mode 100644
index 00000000000..cb8db1febd2
--- /dev/null
+++ b/libcxx/test/std/experimental/utilities/meta/meta.logical/conjunction.pass.cpp
@@ -0,0 +1,68 @@
+//===----------------------------------------------------------------------===//
+//
+//                     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 conjunction;                           // C++17
+// template<class... B>
+//   constexpr bool conjunction_v = conjunction<B...>::value;         // C++17
+
+#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::conjunction<>::value, "" );
+    static_assert ( ex::conjunction<std::true_type >::value, "" );
+    static_assert (!ex::conjunction<std::false_type>::value, "" );
+
+    static_assert ( ex::conjunction_v<>, "" );
+    static_assert ( ex::conjunction_v<std::true_type >, "" );
+    static_assert (!ex::conjunction_v<std::false_type>, "" );
+
+    static_assert ( ex::conjunction<std::true_type,  std::true_type >::value, "" );
+    static_assert (!ex::conjunction<std::true_type,  std::false_type>::value, "" );
+    static_assert (!ex::conjunction<std::false_type, std::true_type >::value, "" );
+    static_assert (!ex::conjunction<std::false_type, std::false_type>::value, "" );
+
+    static_assert ( ex::conjunction_v<std::true_type,  std::true_type >, "" );
+    static_assert (!ex::conjunction_v<std::true_type,  std::false_type>, "" );
+    static_assert (!ex::conjunction_v<std::false_type, std::true_type >, "" );
+    static_assert (!ex::conjunction_v<std::false_type, std::false_type>, "" );
+
+    static_assert ( ex::conjunction<std::true_type,  std::true_type,  std::true_type >::value, "" );
+    static_assert (!ex::conjunction<std::true_type,  std::false_type, std::true_type >::value, "" );
+    static_assert (!ex::conjunction<std::false_type, std::true_type,  std::true_type >::value, "" );
+    static_assert (!ex::conjunction<std::false_type, std::false_type, std::true_type >::value, "" );
+    static_assert (!ex::conjunction<std::true_type,  std::true_type,  std::false_type>::value, "" );
+    static_assert (!ex::conjunction<std::true_type,  std::false_type, std::false_type>::value, "" );
+    static_assert (!ex::conjunction<std::false_type, std::true_type,  std::false_type>::value, "" );
+    static_assert (!ex::conjunction<std::false_type, std::false_type, std::false_type>::value, "" );
+
+    static_assert ( ex::conjunction_v<std::true_type,  std::true_type,  std::true_type >, "" );
+    static_assert (!ex::conjunction_v<std::true_type,  std::false_type, std::true_type >, "" );
+    static_assert (!ex::conjunction_v<std::false_type, std::true_type,  std::true_type >, "" );
+    static_assert (!ex::conjunction_v<std::false_type, std::false_type, std::true_type >, "" );
+    static_assert (!ex::conjunction_v<std::true_type,  std::true_type,  std::false_type>, "" );
+    static_assert (!ex::conjunction_v<std::true_type,  std::false_type, std::false_type>, "" );
+    static_assert (!ex::conjunction_v<std::false_type, std::true_type,  std::false_type>, "" );
+    static_assert (!ex::conjunction_v<std::false_type, std::false_type, std::false_type>, "" );
+
+    static_assert ( ex::conjunction<True >::value, "" );
+    static_assert (!ex::conjunction<False>::value, "" );
+
+    static_assert ( ex::conjunction_v<True >, "" );
+    static_assert (!ex::conjunction_v<False>, "" );
+}
diff --git a/libcxx/test/std/experimental/utilities/meta/meta.logical/disjunction.pass.cpp b/libcxx/test/std/experimental/utilities/meta/meta.logical/disjunction.pass.cpp
new file mode 100644
index 00000000000..dcdbf09fb09
--- /dev/null
+++ b/libcxx/test/std/experimental/utilities/meta/meta.logical/disjunction.pass.cpp
@@ -0,0 +1,68 @@
+//===----------------------------------------------------------------------===//
+//
+//                     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 disjunction;
+// template<class... B>
+//   constexpr bool disjunction_v = disjunction<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::disjunction<>::value, "" );
+    static_assert ( ex::disjunction<std::true_type >::value, "" );
+    static_assert (!ex::disjunction<std::false_type>::value, "" );
+
+    static_assert (!ex::disjunction_v<>, "" );
+    static_assert ( ex::disjunction_v<std::true_type >, "" );
+    static_assert (!ex::disjunction_v<std::false_type>, "" );
+
+    static_assert ( ex::disjunction<std::true_type,  std::true_type >::value, "" );
+    static_assert ( ex::disjunction<std::true_type,  std::false_type>::value, "" );
+    static_assert ( ex::disjunction<std::false_type, std::true_type >::value, "" );
+    static_assert (!ex::disjunction<std::false_type, std::false_type>::value, "" );
+
+    static_assert ( ex::disjunction_v<std::true_type,  std::true_type >, "" );
+    static_assert ( ex::disjunction_v<std::true_type,  std::false_type>, "" );
+    static_assert ( ex::disjunction_v<std::false_type, std::true_type >, "" );
+    static_assert (!ex::disjunction_v<std::false_type, std::false_type>, "" );
+
+    static_assert ( ex::disjunction<std::true_type,  std::true_type,  std::true_type >::value, "" );
+    static_assert ( ex::disjunction<std::true_type,  std::false_type, std::true_type >::value, "" );
+    static_assert ( ex::disjunction<std::false_type, std::true_type,  std::true_type >::value, "" );
+    static_assert ( ex::disjunction<std::false_type, std::false_type, std::true_type >::value, "" );
+    static_assert ( ex::disjunction<std::true_type,  std::true_type,  std::false_type>::value, "" );
+    static_assert ( ex::disjunction<std::true_type,  std::false_type, std::false_type>::value, "" );
+    static_assert ( ex::disjunction<std::false_type, std::true_type,  std::false_type>::value, "" );
+    static_assert (!ex::disjunction<std::false_type, std::false_type, std::false_type>::value, "" );
+
+    static_assert ( ex::disjunction_v<std::true_type,  std::true_type,  std::true_type >, "" );
+    static_assert ( ex::disjunction_v<std::true_type,  std::false_type, std::true_type >, "" );
+    static_assert ( ex::disjunction_v<std::false_type, std::true_type,  std::true_type >, "" );
+    static_assert ( ex::disjunction_v<std::false_type, std::false_type, std::true_type >, "" );
+    static_assert ( ex::disjunction_v<std::true_type,  std::true_type,  std::false_type>, "" );
+    static_assert ( ex::disjunction_v<std::true_type,  std::false_type, std::false_type>, "" );
+    static_assert ( ex::disjunction_v<std::false_type, std::true_type,  std::false_type>, "" );
+    static_assert (!ex::disjunction_v<std::false_type, std::false_type, std::false_type>, "" );
+
+    static_assert ( ex::disjunction<True >::value, "" );
+    static_assert (!ex::disjunction<False>::value, "" );
+
+    static_assert ( ex::disjunction_v<True >, "" );
+    static_assert (!ex::disjunction_v<False>, "" );
+}
diff --git a/libcxx/test/std/experimental/utilities/meta/meta.logical/negation.pass.cpp b/libcxx/test/std/experimental/utilities/meta/meta.logical/negation.pass.cpp
new file mode 100644
index 00000000000..b0d43d7e512
--- /dev/null
+++ b/libcxx/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, "" );
+}