sizeof continues to return 4 instead of actual size

Question

#include 

using namespace std;

int main()
{
    cout << \"Do you need to encrypt or decrypt?\" << endl;
    string message;
    getline         


        

Answer 1

class string
{
    char * ptr;
    //...
    size_t size();  // return number of chars (until null) in buffer pointed to by ptr
};

sizeof(message) == sizeof(string) == sizeof(ptr) == 4; // size of the struct

message.size() == number of characters in the message...