Question

if I have a vector inside another structure, how can I initiate or obtain the value of an element insides the struct1

typedef struct_1 { 
      unsigned v1;
      unsigned v2;
      int v3;
    }struct1;

typedef struct_2{
      int v4;
      unsigned v5;
      vector <struct1> s1;
   } struct2;

Let’s say to obtain v4, v5 I can do this:

struct2 *p = new struct2(); 
p->v4;
p->v5;

How do I access v1 and v2?

Answer 1

you first need to “add” some elements into s1 vector, as by having a struct2 object pointed by p, the s1 vector is initialized to empty.