Implement std::is_pointer,is_reference

RTC: 124148
Change-Id: I25117c038cc3e9c926503921168f2239a1e6d673
Reviewed-on: http://gfw160.aus.stglabs.ibm.com:8080/gerrit/21797
Tested-by: Jenkins Server
Reviewed-by: STEPHEN M. CPREK <smcprek@us.ibm.com>
Reviewed-by: PRACHI GUPTA <pragupta@us.ibm.com>
Reviewed-by: Brian Silver <bsilver@us.ibm.com>
Reviewed-by: A. Patrick Williams III <iawillia@us.ibm.com>

3 files changed, 169 insertions, 0 deletions

diff --git a/src/include/type_traits b/src/include/type_traits
index 14ff5105d..6449ec07d 100644
--- a/src/include/type_traits
+++ b/src/include/type_traits
@@ -26,5 +26,6 @@
 #include <util/impl/type_remove.H>
 #include <util/impl/is_same.H>
 #include <util/impl/is_integral.H>
+#include <util/impl/is_ptr.H>
 
 /* vim: set filetype=cpp : */
diff --git a/src/include/util/impl/is_ptr.H b/src/include/util/impl/is_ptr.H
new file mode 100644
index 000000000..dd8678853
--- /dev/null
+++ b/src/include/util/impl/is_ptr.H
@@ -0,0 +1,48 @@
+/* IBM_PROLOG_BEGIN_TAG                                                   */
+/* This is an automatically generated prolog.                             */
+/*                                                                        */
+/* $Source: src/include/util/impl/is_ptr.H $                              */
+/*                                                                        */
+/* OpenPOWER HostBoot Project                                             */
+/*                                                                        */
+/* Contributors Listed Below - COPYRIGHT 2015                             */
+/* [+] International Business Machines Corp.                              */
+/*                                                                        */
+/*                                                                        */
+/* Licensed under the Apache License, Version 2.0 (the "License");        */
+/* you may not use this file except in compliance with the License.       */
+/* You may obtain a copy of the License at                                */
+/*                                                                        */
+/*     http://www.apache.org/licenses/LICENSE-2.0                         */
+/*                                                                        */
+/* Unless required by applicable law or agreed to in writing, software    */
+/* distributed under the License is distributed on an "AS IS" BASIS,      */
+/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or        */
+/* implied. See the License for the specific language governing           */
+/* permissions and limitations under the License.                         */
+/*                                                                        */
+/* IBM_PROLOG_END_TAG                                                     */
+#ifndef __UTIL_IMPL_IS_PTR_H
+#define __UTIL_IMPL_IS_PTR_H
+
+#include <util/impl/integral.H>
+
+namespace std
+{
+    template <typename T> struct _is_pointer : std::false_type {};
+    template <typename T> struct _is_pointer<T*> : std::true_type {};
+    template <typename T> struct is_pointer :
+        _is_pointer<typename remove_cv<T>::type> {};
+
+    template <typename T> struct is_lvalue_reference : std::false_type {};
+    template <typename T> struct is_lvalue_reference<T&> : std::true_type {};
+
+    template <typename T> struct is_rvalue_reference : std::false_type {};
+    template <typename T> struct is_rvalue_reference<T&&> : std::true_type {};
+
+    template <typename T> struct is_reference : std::false_type {};
+    template <typename T> struct is_reference<T&> : std::true_type {};
+    template <typename T> struct is_reference<T&&> : std::true_type {};
+}
+
+#endif
diff --git a/src/usr/testcore/lib/is_ptr.H b/src/usr/testcore/lib/is_ptr.H
new file mode 100644
index 000000000..d3df49a8b
--- /dev/null
+++ b/src/usr/testcore/lib/is_ptr.H
@@ -0,0 +1,120 @@
+/* IBM_PROLOG_BEGIN_TAG                                                   */
+/* This is an automatically generated prolog.                             */
+/*                                                                        */
+/* $Source: src/usr/testcore/lib/is_ptr.H $                               */
+/*                                                                        */
+/* OpenPOWER HostBoot Project                                             */
+/*                                                                        */
+/* Contributors Listed Below - COPYRIGHT 2015                             */
+/* [+] International Business Machines Corp.                              */
+/*                                                                        */
+/*                                                                        */
+/* Licensed under the Apache License, Version 2.0 (the "License");        */
+/* you may not use this file except in compliance with the License.       */
+/* You may obtain a copy of the License at                                */
+/*                                                                        */
+/*     http://www.apache.org/licenses/LICENSE-2.0                         */
+/*                                                                        */
+/* Unless required by applicable law or agreed to in writing, software    */
+/* distributed under the License is distributed on an "AS IS" BASIS,      */
+/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or        */
+/* implied. See the License for the specific language governing           */
+/* permissions and limitations under the License.                         */
+/*                                                                        */
+/* IBM_PROLOG_END_TAG                                                     */
+#ifndef __LIB_IS_PTR_H
+#define __LIB_IS_PTR_H
+
+#include <cxxtest/TestSuite.H>
+#include <type_traits>
+
+class STLIsPtrTest : public CxxTest::TestSuite
+{
+    public:
+        void testIsPtr()
+        {
+            using namespace std;
+
+            if (is_pointer<int>::value)
+            {
+                TS_FAIL("is_pointer<int> is true.");
+            }
+            if (!is_pointer<char*>::value)
+            {
+                TS_FAIL("is_pointer<char*> is not true.");
+            }
+            if (!is_pointer<char* const>::value)
+            {
+                TS_FAIL("is_pointer<char* const> is not true.");
+            }
+            if (!is_pointer<char* volatile>::value)
+            {
+                TS_FAIL("is_pointer<char* volatile> is not true.");
+            }
+            if (is_pointer<int&>::value)
+            {
+                TS_FAIL("is_pointer<int&> is true.");
+            }
+        }
+
+        void testIsReference()
+        {
+            using namespace std;
+
+            if (is_reference<int>::value)
+            {
+                TS_FAIL("is_reference<int> is true.");
+            }
+            if (!is_reference<int&>::value)
+            {
+                TS_FAIL("is_reference<int&> is false.");
+            }
+            if (!is_reference<int&&>::value)
+            {
+                TS_FAIL("is_reference<int&&> is false.");
+            }
+            if (!is_reference<const int&>::value)
+            {
+                TS_FAIL("is_reference<const int&> is false.");
+            }
+        }
+
+        void testIsLReference()
+        {
+            using namespace std;
+
+            if (is_lvalue_reference<int>::value)
+            {
+                TS_FAIL("is_lvalue_reference<int> is true.");
+            }
+            if (!is_lvalue_reference<int&>::value)
+            {
+                TS_FAIL("is_lvalue_reference<int&> is false.");
+            }
+            if (is_lvalue_reference<int&&>::value)
+            {
+                TS_FAIL("is_lvalue_reference<int&&> is true.");
+            }
+        }
+
+        void testIsRReference()
+        {
+            using namespace std;
+
+            if (is_rvalue_reference<int>::value)
+            {
+                TS_FAIL("is_rvalue_reference<int> is true.");
+            }
+            if (is_rvalue_reference<int&>::value)
+            {
+                TS_FAIL("is_rvalue_reference<int&> is true.");
+            }
+            if (!is_rvalue_reference<int&&>::value)
+            {
+                TS_FAIL("is_rvalue_reference<int&&> is false.");
+            }
+        }
+
+};
+
+#endif