mirror of
https://github.com/msgpack/msgpack-c.git
synced 2025-04-22 16:40:22 +02:00
4b2b3a18df
Replaced boost/ with msgpack/ and BOOST with MSGPACK in Boost.Preprocessor files. Renamed existing macron in versioning.hpp to avoid confict with MSGPACK_PP_*. Removed MSGPACK_USE_BOOST requirement from MSGPACK_DEFINE_MAP.
120 lines
3.1 KiB
C++
120 lines
3.1 KiB
C++
// MessagePack for C++ example
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//
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// Copyright (C) 2015 KONDO Takatoshi
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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#include <string>
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#include <iostream>
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#include <iomanip>
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#include <sstream>
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#include <cassert>
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#include <msgpack.hpp>
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struct base1 {
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base1():a("default") {}
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std::string a;
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MSGPACK_DEFINE_MAP(a);
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};
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struct v1 : base1 {
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v1():name("default"), age(0) {}
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std::string name;
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int age;
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MSGPACK_DEFINE_MAP(MSGPACK_BASE_MAP(base1), name, age);
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};
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struct base2 {
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base2():a("default") {}
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std::string a;
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MSGPACK_DEFINE_MAP(a);
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};
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// Removed: base1, name
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// Added : base2, address
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struct v2 : base2 {
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v2(): age(0), address("default") {}
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int age;
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std::string address;
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MSGPACK_DEFINE_MAP(MSGPACK_BASE_MAP(base2), age, address);
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};
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// The member variable "age" is in common between v1 and v2.
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void print(std::string const& buf) {
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for (std::string::const_iterator it = buf.begin(), end = buf.end();
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it != end;
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++it) {
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std::cout
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<< std::setw(2)
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<< std::hex
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<< std::setfill('0')
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<< (static_cast<int>(*it) & 0xff)
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<< ' ';
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}
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std::cout << std::dec << std::endl;
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}
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int main() {
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{ // pack v1, unpack, convert to v2
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v1 v;
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v.a = "ABC";
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v.name = "John Smith";
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v.age = 35;
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std::stringstream ss;
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msgpack::pack(ss, v);
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print(ss.str());
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msgpack::unpacked unp = msgpack::unpack(ss.str().data(), ss.str().size());
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msgpack::object obj = unp.get();
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std::cout << obj << std::endl;
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v2 newv = obj.as<v2>();
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std::cout << "v2::a " << newv.a << std::endl;
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std::cout << "v2::age " << newv.age << std::endl;
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std::cout << "v2::address " << newv.address << std::endl;
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// "age" is set from v1
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assert(newv.a == "default");
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assert(newv.age == 35);
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assert(newv.address == "default");
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}
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{ // create v2 object with zone, convert to v1
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v2 v;
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v.a = "DEF";
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v.age = 42;
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v.address = "Tokyo";
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msgpack::zone z;
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msgpack::object obj(v, z);
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std::cout << obj << std::endl;
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v1 newv = obj.as<v1>();
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std::cout << "v1::a " << newv.a << std::endl;
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std::cout << "v1::name " << newv.name << std::endl;
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std::cout << "v1::age " << newv.age << std::endl;
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// "age" is set from v2
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assert(newv.a == "default");
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assert(newv.name == "default");
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assert(newv.age == 42);
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}
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}
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