c++ vector push_back with object pointer

Question

I need to create a vector of object pointers by having an object passed into this function and then put into a vector of object pointers with push_back, but I'm getting "invalid conversion from const Person* to std::vector::value_type {aka Person*}" How do I pass the pointer to push_back correctly to make this work?

vector<Person*>vptr;

void insert(const Person&p)
{
    const Person*ptr=&p;
    vptr.push_back(ptr);
}

juanchopanza · Accepted Answer · 2013-11-18 07:19:26Z

8

You would have to drop the const from the function parameter list and pointer declaration:

void insert(Person& p)
{
  vptr.push_back(&p);
}

or store const Person*:

vector<const Person*> vptr;

edited Nov 18, 2013 at 7:19

answered Nov 18, 2013 at 6:54

juanchopanza

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1 Comment

user1804208 Over a year ago

I can't drop the const due to complicated reasons, other stuff is going on in the function. And I can't change the vector type. Is there any other way?

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