Need an advise about adding objects to vector-

[tonnot]

I have a classA, it creates objectsB * (by pointer)

my_objectB = new ObjectB; ( inside classA)

my_objectB = new ObjectB; ( inside classA)

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And from the main, I want to add "objectsB" to a vector.

vector<objectC*> my_vector; (my vector is private for main )

vector<objectC*> my_vector; (my vector is private for main )

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So, I can write inside main_create():

for (int x=0;x<10;xx++)
 {
   ClassA class_a* = new ClassA;  
   my_vector.push_back(class_a->my_objectB)
}

for (int x=0;x<10;xx++)
 {
   ClassA class_a* = new ClassA;  
   my_vector.push_back(class_a->my_objectB)
}

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My doubt is ... Every time I create class_a, a new instance is created, and there is no re-write of class_a->my_objectB, ins't it ?

Ok. on main I have main_process, a function that are going to do thing with the vector. My question is , objectB instances inside the vector exist ? or maybe I have a risk of crash becasue thet were created by a temporal classA inside 'main_create'.

By last. I have to free every objectB instance inside the vector with pop_back ? Or need I to do more ?
Any tip ? Thanks.