Fix clang compilation and a memory leak

test/unittest/strfunctest.cpp

@@ -0,0 +1,31 @@
+// Tencent is pleased to support the open source community by making RapidJSON available.
+// 
+// Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights reserved.
+//
+// Licensed under the MIT License (the "License"); you may not use this file except
+// in compliance with the License. You may obtain a copy of the License at
+//
+// http://opensource.org/licenses/MIT
+//
+// 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.
+
+#include "unittest.h"
+
+#include "rapidjson/internal/strfunc.h"
+
+using namespace rapidjson;
+using namespace rapidjson::internal;
+
+TEST(StrFunc, CountStringCodePoint) {
+    SizeType count;
+    EXPECT_TRUE(CountStringCodePoint<UTF8<> >("", 0, &count));
+    EXPECT_EQ(0u, count);
+    EXPECT_TRUE(CountStringCodePoint<UTF8<> >("Hello", 5, &count));
+    EXPECT_EQ(5u, count);
+    EXPECT_TRUE(CountStringCodePoint<UTF8<> >("\xC2\xA2\xE2\x82\xAC\xF0\x9D\x84\x9E", 9, &count)); // cents euro G-clef
+    EXPECT_EQ(3u, count);
+    EXPECT_FALSE(CountStringCodePoint<UTF8<> >("\xC2\xA2\xE2\x82\xAC\xF0\x9D\x84\x9E\x80", 10, &count));
+}