EndianSafeBinaryStream/example.cpp at main · gruco0002/EndianSafeBinaryStream · GitHub

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
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
#include "EndianSafeBinaryStream.hpp"

#include <iostream>
#include <string>
#include <vector>

struct ExampleStruct
{
    int32_t a;
    bool b;
    uint64_t c;

    float f;
};

// a custom extension for the struct above
namespace esbs
{
    template <>
    struct EndianSafeBinaryStreamExtension<ExampleStruct>
    {

        template <typename Stream>
        static EndianSafeBinaryStream<Stream> &serialize(EndianSafeBinaryStream<Stream> &stream, const ExampleStruct &v)
        {
            stream << v.a << v.b << v.c << v.f;
            return stream;
        }

        template <typename Stream>
        static EndianSafeBinaryStream<Stream> &deserialize(EndianSafeBinaryStream<Stream> &stream, ExampleStruct &v)
        {
            stream >> v.a >> v.b >> v.c >> v.f;
            return stream;
        }
    };
}

int main(int argc, char **args)
{

    // serialize (write) data
    {
        // create the stream
        esbs::EndianSafeBinaryStream<std::fstream> stream = esbs::output_to_file("test.bin");

        // basic data types
        uint32_t number1 = 123456789;
        int16_t number2 = -16;
        double number3 = 15.89;

        stream << number1 << number2 << number3;

        // advanced data type using the optional (activated by default) extensions
        std::string example_message = "Hello World :)";
        stream << example_message;

        std::vector<uint64_t> multiples_of_two;
        uint64_t multiple = 1;
        for (int i = 0; i < 64; i++)
        {
            multiples_of_two.push_back(multiple);
            multiple *= 2;
        }
        stream << multiples_of_two;

        // using a custom implemented extension for a custom object
        ExampleStruct s;
        s.a = -5555555;
        s.b = true,
        s.c = 1357913579;
        s.f = 42.42f;

        stream << s;
    }

    // deserialize (read) data
    {

        // create the stream
        esbs::EndianSafeBinaryStream<std::fstream> stream = esbs::input_from_file("test.bin");

        // basic data types
        uint32_t number1;
        int16_t number2;
        double number3;

        stream >> number1 >> number2 >> number3;

        std::cout << "number1: " << number1 << std::endl;
        std::cout << "number2: " << number2 << std::endl;
        std::cout << "number3: " << number3 << std::endl;

        // advanced data type using the optional (activated by default) extensions
        std::string example_message;
        stream >> example_message;

        std::cout << "example_message: " << example_message << std::endl;

        std::vector<uint64_t> multiples_of_two;
        stream >> multiples_of_two;

        std::cout << "multiples_of_two: [";
        for (int i = 0; i < multiples_of_two.size(); i++)
        {
            std::cout << " " << multiples_of_two[i];
        }
        std::cout << " ]" << std::endl;

        // using a custom implemented extension for a custom object
        ExampleStruct s;
        stream >> s;

        std::cout << "ExampleStruct s: { a: " << s.a << ", b: " << s.b << ", c: "
                  << s.c << ", f: " << s.f << " }" << std::endl;
    }

    // deserialize (read) using ifstream
    {
        std::ifstream input_filestream("test.bin", std::ios_base::binary);
        esbs::EndianSafeBinaryStream<std::ifstream> stream(std::move(input_filestream));

        // basic data types
        uint32_t number1;
        int16_t number2;
        double number3;

        stream >> number1 >> number2 >> number3;

        std::cout << "number1: " << number1 << std::endl;
        std::cout << "number2: " << number2 << std::endl;
        std::cout << "number3: " << number3 << std::endl;
    }

    return 0;
}