回答編集履歴
4
見当外れだったようなので削除
test
CHANGED
|
@@ -1,153 +1 @@
|
|
|
1
|
-
ポインタのサイズは一定なのでC++14ならばvectorのunique_ptrでメンバー変数を持てばいいかと。
|
|
2
|
-
|
|
3
|
-
一応書いてはみましたが、初心者には少々難しすぎるかもしれません。
|
|
4
|
-
|
|
5
|
-
```C++
|
|
6
|
-
|
|
7
|
-
#include <iostream>
|
|
8
|
-
|
|
9
|
-
#include <vector>
|
|
10
|
-
|
|
11
|
-
#include <memory>
|
|
12
|
-
|
|
13
|
-
#include <utility>
|
|
14
|
-
|
|
15
|
-
|
|
16
|
-
|
|
17
|
-
class Value
|
|
18
|
-
|
|
19
|
-
{
|
|
20
|
-
|
|
21
|
-
public:
|
|
22
|
-
|
|
23
|
-
Value() = default;
|
|
24
|
-
|
|
25
|
-
Value(const Value& v) : number(v.number), values(nullptr)
|
|
26
|
-
|
|
27
|
-
{
|
|
28
|
-
|
|
29
|
-
if (v.values) values = std::make_unique<std::vector<Value>>(*(v.values));
|
|
30
|
-
|
|
31
|
-
}
|
|
32
|
-
|
|
33
|
-
Value(Value&&) = default;
|
|
34
|
-
|
|
35
|
-
Value& operator =(const Value& v)
|
|
36
|
-
|
|
37
|
-
{
|
|
38
|
-
|
|
39
|
-
if (this != &v) {
|
|
40
|
-
|
|
41
|
-
number = v.number;
|
|
42
|
-
|
|
43
|
-
values = nullptr;
|
|
44
|
-
|
|
45
|
-
if (v.values) values = std::make_unique<std::vector<Value>>(*(v.values));
|
|
46
|
-
|
|
47
|
-
}
|
|
48
|
-
|
|
49
|
-
return *this;
|
|
50
|
-
|
|
51
|
-
}
|
|
52
|
-
|
|
53
|
-
Value& operator =(Value&&) = default;
|
|
54
|
-
|
|
55
|
-
~Value() = default;
|
|
56
|
-
|
|
57
|
-
|
|
58
|
-
|
|
59
|
-
Value(double n) : number(n) {}
|
|
60
|
-
|
|
61
|
-
Value& operator =(double n) {number = n;}
|
|
62
|
-
|
|
63
|
-
Value(const std::vector<Value>&);
|
|
64
|
-
|
|
65
|
-
void print() const;
|
|
66
|
-
|
|
67
|
-
|
|
68
|
-
|
|
69
|
-
private:
|
|
70
|
-
|
|
71
|
-
double number;
|
|
72
|
-
|
|
73
|
-
std::unique_ptr<std::vector<Value>> values;
|
|
74
|
-
|
|
75
|
-
};
|
|
76
|
-
|
|
77
|
-
|
|
78
|
-
|
|
79
|
-
Value::Value(const std::vector<Value>& v)
|
|
80
|
-
|
|
81
|
-
: number(0.0)
|
|
82
|
-
|
|
83
|
-
, values(std::make_unique<std::vector<Value>>(v))
|
|
84
|
-
|
|
85
|
-
{}
|
|
86
|
-
|
|
87
|
-
|
|
88
|
-
|
|
89
|
-
void Value::Value::print() const
|
|
90
|
-
|
|
91
|
-
{
|
|
92
|
-
|
|
93
|
-
if (values) {
|
|
94
|
-
|
|
95
|
-
auto& v = *values;
|
|
96
|
-
|
|
97
|
-
int size = static_cast<int>(v.size());
|
|
98
|
-
|
|
99
|
-
std::cout << "{";
|
|
100
|
-
|
|
101
|
-
v[0].print();
|
|
102
|
-
|
|
103
|
-
for (int i = 1; i < size; ++i) {
|
|
104
|
-
|
|
105
|
-
std::cout << ",";
|
|
106
|
-
|
|
107
|
-
v[i].print();
|
|
108
|
-
|
|
109
|
-
}
|
|
110
|
-
|
|
111
|
-
std::cout << "}";
|
|
112
|
-
|
|
113
|
-
} else {
|
|
114
|
-
|
|
115
|
-
std::cout << number;
|
|
116
|
-
|
|
117
|
-
}
|
|
118
|
-
|
|
119
|
-
}
|
|
120
|
-
|
|
121
|
-
|
|
122
|
-
|
|
123
|
-
int main()
|
|
124
|
-
|
|
125
|
-
{
|
|
126
|
-
|
|
127
|
-
std::vector<Value> v1 = {3.4, 5.6};
|
|
128
|
-
|
|
129
|
-
Value v2 = 7.8;
|
|
130
|
-
|
|
131
|
-
std::vector<Value> v3 = {1.2, v1, v2};
|
|
132
|
-
|
|
133
|
-
Value v4 = v3;
|
|
134
|
-
|
|
135
|
-
|
|
136
|
-
|
|
137
|
-
v4.print();
|
|
138
|
-
|
|
139
|
-
std::cout << std::endl;
|
|
140
|
-
|
|
141
|
-
|
|
142
|
-
|
|
143
|
-
using V = std::vector<Value>;
|
|
144
|
-
|
|
145
|
-
|
|
1
|
+
再帰呼び出しが全く無関係とは。まるで見当外れだったようなので削除します。
|
|
146
|
-
|
|
147
|
-
v5.print();
|
|
148
|
-
|
|
149
|
-
std::cout << std::endl;
|
|
150
|
-
|
|
151
|
-
}
|
|
152
|
-
|
|
153
|
-
```
|
3
valuesの初期化も忘れてた:-)
test
CHANGED
|
@@ -39,6 +39,8 @@
|
|
|
39
39
|
if (this != &v) {
|
|
40
40
|
|
|
41
41
|
number = v.number;
|
|
42
|
+
|
|
43
|
+
values = nullptr;
|
|
42
44
|
|
|
43
45
|
if (v.values) values = std::make_unique<std::vector<Value>>(*(v.values));
|
|
44
46
|
|
2
number = v.number の位置を移動
test
CHANGED
|
@@ -36,9 +36,9 @@
|
|
|
36
36
|
|
|
37
37
|
{
|
|
38
38
|
|
|
39
|
-
|
|
39
|
+
if (this != &v) {
|
|
40
40
|
|
|
41
|
-
|
|
41
|
+
number = v.number;
|
|
42
42
|
|
|
43
43
|
if (v.values) values = std::make_unique<std::vector<Value>>(*(v.values));
|
|
44
44
|
|
1
numberの初期化を忘れていたので修正
test
CHANGED
|
@@ -35,6 +35,8 @@
|
|
|
35
35
|
Value& operator =(const Value& v)
|
|
36
36
|
|
|
37
37
|
{
|
|
38
|
+
|
|
39
|
+
number = v.number;
|
|
38
40
|
|
|
39
41
|
if (this != &v) {
|
|
40
42
|
|
|
@@ -134,8 +136,16 @@
|
|
|
134
136
|
|
|
135
137
|
std::cout << std::endl;
|
|
136
138
|
|
|
139
|
+
|
|
140
|
+
|
|
141
|
+
using V = std::vector<Value>;
|
|
142
|
+
|
|
143
|
+
Value v5 = V{0.1, V{0.3, 0.5}, 0.7};
|
|
144
|
+
|
|
145
|
+
v5.print();
|
|
146
|
+
|
|
147
|
+
std::cout << std::endl;
|
|
148
|
+
|
|
137
149
|
}
|
|
138
150
|
|
|
139
|
-
|
|
140
|
-
|
|
141
151
|
```
|