unknown runtime error with classes
hello i wrote 2 classes and i can't understand why I cant use the copy constructor of class polynom.
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
|
class Point
{
private:
double x;
double y;
public:
Point(double a = 0, double b = 0)
{
x = a;
y = b;
}
Point(Point const &p)
{
x = p.x;
y = p.y;
}
Point& operator=(Point const &p)
{
if(this != &p)
{
x = p.x;
y = p.y;
}
return *this;
}
void SetX(double a)
{
x = a;
}
void SetY(double b)
{
y = b;
}
double GetX()
{
return x;
}
double GetY()
{
return y;
}
void print()
{
cout << "(" << x << "," << y << ")";
}
};
class Polygon
{
private:
int vertexCount;
Point **vertex;
public:
Polygon(int vCount , Point **vx )
{
vertexCount = vCount;
vertex = vx;
}
~Polygon()
{
delete [vertexCount] vertex;
}
Polygon(Polygon const &p)
{
vertexCount = p.vertexCount;
for(int i=0; i<vertexCount; i++)
vertex[i] = p.vertex[i];
}
void print()
{
for(int i=0; i<vertexCount; i++)
{
vertex[i]->print();
if(i<vertexCount-1)
cout<< ", ";
}
}
};
void main()
{
Point *p1 = new Point(1,1);
Point *p2 = new Point(2,2);
Point *p3 = new Point(3,3);
Point *p4 = new Point(4,4);
Point **arrayPoint = new Point *[4];
*arrayPoint = p1;
*(arrayPoint+1) = p2;
*(arrayPoint+2) = p3;
*(arrayPoint+3) = p4;
Point **arrayPoint2 = new Point *[3];
*arrayPoint2 = p1;
*(arrayPoint2+1) = p2;
*(arrayPoint2+2) = p3;
Polygon *pol1 = new Polygon(4, arrayPoint);
Polygon *pol2 = new Polygon(*pol1);
pol2->print();
}
|
its a runtime error when vertex[i] = p.vertex[i]; in copy constructor. Thanks!
Last edited on
sry for stupid question i found the error ... I didn't create the array vertex = new Point *[vertexCount];
Topic archived. No new replies allowed.