-
Notifications
You must be signed in to change notification settings - Fork 931
Expand file tree
/
Copy pathmsgpack_variant_capitalize.cpp
More file actions
94 lines (82 loc) · 2.68 KB
/
msgpack_variant_capitalize.cpp
File metadata and controls
94 lines (82 loc) · 2.68 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
// MessagePack for C++ example
//
// Copyright (C) 2015 KONDO Takatoshi
//
// Distributed under the Boost Software License, Version 1.0.
// (See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
//
#include <string>
#include <sstream>
#include <iostream>
#include <algorithm>
#include <cctype>
#include <msgpack.hpp>
struct user {
std::string name;
int age;
std::string address;
MSGPACK_DEFINE(name, age, address);
};
struct proc:boost::static_visitor<void> {
void operator()(std::string& v) const {
std::cout << " match std::string& v" << std::endl;
std::cout << " v: " << v << std::endl;
std::cout << " capitalize" << std::endl;
for (std::string::iterator it = v.begin(), end = v.end();
it != end;
++it) {
*it = std::toupper(*it);
}
}
void operator()(std::vector<msgpack::type::variant>& v) const {
std::cout << "match vector (msgpack::type::ARRAY)" << std::endl;
std::vector<msgpack::type::variant>::iterator it = v.begin();
std::vector<msgpack::type::variant>::const_iterator end = v.end();
for (; it != end; ++it) {
boost::apply_visitor(*this, *it);
}
}
template <typename T>
void operator()(T const&) const {
std::cout << " match others" << std::endl;
}
};
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() {
std::stringstream ss1;
user u;
u.name = "Takatoshi Kondo";
u.age = 42;
u.address = "Tokyo, JAPAN";
std::cout << "Packing object." << std::endl;
msgpack::pack(ss1, u);
print(ss1.str());
msgpack::object_handle oh1 = msgpack::unpack(ss1.str().data(), ss1.str().size());
msgpack::object const& obj1 = oh1.get();
std::cout << "Unpacked msgpack object." << std::endl;
std::cout << obj1 << std::endl;
msgpack::type::variant v = obj1.as<msgpack::type::variant>();
std::cout << "Applying proc..." << std::endl;
boost::apply_visitor(proc(), v);
std::stringstream ss2;
std::cout << "Packing modified object." << std::endl;
msgpack::pack(ss2, v);
print(ss2.str());
msgpack::object_handle oh2 = msgpack::unpack(ss2.str().data(), ss2.str().size());
msgpack::object const& obj2 = oh2.get();
std::cout << "Modified msgpack object." << std::endl;
std::cout << obj2 << std::endl;
}