How to retreive a specific element from a vector and assign it to a variable?

Asked Jan 02 '20 at 15:26

Active Jan 02 '20 at 15:34

Viewed 21 times

Suppose I have a class called Student with the following value constructor:

Student::Student(const string &id) : id_(id){}

And in the main.cpp I have:

shared_ptr<Student> s1(new Student("st1"));
shared_ptr<Student> s2(new Student("st2"));
shared_ptr<Student> s3(new Student("st3"));

vector<Student> vect;

vect.push_back(s1); 
vect.push_back(s2); 
vect.push_back(s3);

Then I intend to retreive a student with id "st2" from vect and assign it to a variable, how do I do that?

edited Jan 02 '20 at 15:34

NathanOliver

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asked Jan 02 '20 at 15:26

Bsh

Aren't you just overwriting the variable `s1` each time in the first 3 lines? And shouldn't your vector be `vector>`? Is `id_` private? Is there a getter function to test for its value? – Allan Cameron Jan 02 '20 at 15:30
@AllanCameron I fixed the code as it was a typo. – NathanOliver Jan 02 '20 at 15:34

How to retreive a specific element from a vector and assign it to a variable?

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