quick question

[Geminias]

is "cin.getline" deprecated? (like is it old and unnecessary?)

Quote:

// cin and ato* functions
#include <iostream>
#include <stdlib.h>
using namespace std;

int main ()
{
char mybuffer [100];
float price;
int quantity;
cout << "Enter price: ";
cin.getline (mybuffer,100);
price = atof (mybuffer);
cout << "Enter quantity: ";
cin.getline (mybuffer,100);
quantity = atoi (mybuffer);
cout << "Total price: " << price*quantity;
return 0;
}

[wtd]

Do not use std::string::getline, atof, and character arrays. These make your program very brittle, since they do a poor job of dealing with input that's not exactly what you expect.

Thus we use a std::string which is not limited to 99 characters, as the character array is.

Just as we use the std::cin stream to get input from the keyboard, we can use a stringstream to get input from a string with equal power.

c++:

#include <iostream> #include <sstream> int main () {    std::string buffer;    std::stringstream input_stream;    float price;    int quantity;    std::cout << "Enter price: ";    std::cout.flush();    std::getline(std::cin, buffer);    input_stream = std::stringstream(buffer);    buffer >> price;    std::cout << "Enter quantity: ";    std::cout.flush();    std::getline(std::cin, buffer);    input_stream = std::stringstream(buffer);    buffer >> quantity;    std::cout << "Total price: " << price * quantity              << std::endl;    return 0; }

[Geminias]

thanks wtd !