Added examples to cmake building process.

Set /WX flas that is warnings as errors on MSVC build.
Updated linux, osx, msvc build to refer to appropriate boost libraries.

example/cpp03/class_intrusive_map.cpp

@@ -0,0 +1,80 @@
+// MessagePack for C++ example
+//
+// Copyright (C) 2015 KONDO Takatoshi
+//
+//    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.
+//
+
+#include <string>
+#include <iostream>
+#include <iomanip>
+#include <sstream>
+#include <cassert>
+
+#include <msgpack.hpp>
+
+
+class my_class {
+public:
+    my_class() {} // When you want to convert from msgpack::object to my_class,
+                  // my_class should be default constractible.
+    my_class(std::string const& name, int age):name_(name), age_(age) {}
+
+    friend bool operator==(my_class const& lhs, my_class const& rhs) {
+        return lhs.name_ == rhs.name_ && lhs.age_ == rhs.age_;
+    }
+
+private:
+    std::string name_;
+    int age_;
+
+public:
+    MSGPACK_DEFINE(name_, age_);
+};
+
+void print(std::string const& buf) {
+    for (std::string::const_iterator it = buf.begin(), end = buf.end();
+         it != end;
+         ++it) {
+        std::cout
+            << std::setw(2)
+            << std::hex
+            << std::setfill('0')
+            << (static_cast<int>(*it) & 0xff)
+            << ' ';
+    }
+    std::cout << std::dec << std::endl;
+}
+
+int main() {
+    {   // pack, unpack
+        my_class my("John Smith", 42);
+        std::stringstream ss;
+        msgpack::pack(ss, my);
+
+        print(ss.str());
+
+        msgpack::unpacked unp;
+        msgpack::unpack(unp, ss.str().data(), ss.str().size());
+        msgpack::object obj = unp.get();
+        std::cout << obj << std::endl;
+        assert(obj.as<my_class>() == my);
+    }
+    {   // create object with zone
+        my_class my("John Smith", 42);
+        msgpack::zone z;
+        msgpack::object obj(my, z);
+        std::cout << obj << std::endl;
+        assert(obj.as<my_class>() == my);
+    }
+}