Vector of classes problem

[bigorenski]

Hello, im passing a vector of a class to a function of another class.
But i cant access the data on the classes inside the vector.

Something like that:

class CDummy{
  ...
  public:
    string m_name; 
  ...
}

class CAnother{
  ...
  public:
    void readName(vector<CDummy> vec);
  ...
}
void CAnother::readName(vector<CDummy> vec){
  cout<<vec.at(0).m_name<<endl; //this statement prints nothing
}

Is it possible?

ps:
Im creating the vector on main() and using push_back with a pointer to an initialized CDummy instance

[cire]

You don't supply enough information to make an informed guess.

You're using pointers... but not storing them? Does the "initialized CDummy instance" initialize it's m_name member to something other than an empty string? Why does CAnother::readName take a vector by value?

[bigorenski]

On main i got this:

...
int main(){

 CDummy dummy;
 dummy.m_name = "sample name";
 
 vector<CDummy> dummyVect;
 dummyVect.push_back(dummy);

 CAnother another;
 another.readName(dummyVect);


}

 But readName() always print an empty string... I tried with pointer to vector too

[cire]

My guess would be that you've supplied a copy constructor for CDummy that does the wrong thing.

[bigorenski]

Ill check for that

[bigorenski]

THANK YOU cire!!

The error was on my copy ctor.

CDummy::CDummy(const CDummy& orig) {
    
    this->m_name = orig.m_name;
}

Now its working like a charm