c++ - Assigning structs including pointers -

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consider following simple program. defines 2 variables a , b mystruct , initializes a.

how can copy a b new pointers b?

if use assignment operator, firstmember of b assigned firstmember of a , whenever change value of b.firstmember[i], value of a.firstmember[i] change. know can done function, there simpler way? assuming mystruct can have lots pointers, writing function doesn't seem good.

typedef struct mystruct {     int * firstmember;     int secondmember; } mystruct;  int main() {     mystruct a;     mystruct b;      initialize(a);            // initializes such a.firstmember[0] != 5     b = a;     b.firstmember[0] = 5;     cout<<a.firstmember[0];   // prints 5      return 0; }

this falls "rule of 3". once start managing raw pointers inside class, want define custom contructor, destructor, , assignment operator reason.


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