Fill two vectors of unknow lenght

[Gi Pa]

Hi at everyone, I have a quite stupid question.
I should fill two vectors of unknow lenght, my attempt is:

int main()
{
    vector<double> price;

    cout << "Fill the vector price, when you want insert  informations inside another vector enter stop" << endl;

    for(double objectprice; cin>>objectprice;)
        price.push_back(objectprice);

    cout << "Fill the vector weight, when you want end it, enter stop" << endl;

    vector<double> weight;
    for( double objectweight; cin>>objectweight;)
        weight.push_back(objectweight);

    return 0;
}

But when I enter a string or a char the program shutdown instead of let me enter the elements in the second vector.
What should I change??
Thak to everyone.

[TarikNeaj]

Looks like you dont quite know how for-loops work, Check out buckys tutorial on youtube - https://www.youtube.com/playlist?list=PLAE85DE8440AA6B83

He is great at teaching basics. If you specifically want to learn about for-loops watch video number 22.

[MiiNiPaa]

After you enter "stop" and condition fails, offending input is still in input buffer. You need to clear it and reset error flag:

std::cin.clear();
//Then either:
std::string dump;
std::cin >> dump; //extracts one word
//or
std::cin.ignore(std::numeric_limits<std::streamsize>::max(), '\n'); //include <limits> 

[Gi Pa]

Hi! Thank you for the fast reply. I saw your videos but it doesn't help me.
I mean, the video shows the implementation of a for loop. Now this doesn't help me because i can't set the lenght of the vector in advance. What I'm searching is code that push back elemnts inside a vector and stops only when i enter a string or a char -or a particular key-.
My code works only for the first vector...
Do you have any advice?
Thank you anyway again.

[MiiNiPaa]

Another way is to read input as string, and if it not an specific key to stop, parse it as number using std::stod() or similar

[Gi Pa]

MiiNiPaa Thank you for the help it works perfectly. Thank you again!!!