how to read character from console in c++?

Question

I'm struggling with reading characters from console in c++. Here is what I tried to do:

char x;
char y; 
char z;

cout<<"Please enter your string: ";
string s;
getline(cin,s);
istringstream is(s);

is>> x >> y >> z;

The problem is if the user enter something like this "1 20 100":

x will get 1
y will get 2
z will get 0

What I want to get is x = 1; y = 20; z = 100;

Anybody has suggestions?

Answer 1

You don't want to read characters but integers.

int x;
int y; 
int z;

cout<<"Please enter your string: ";
string s;
getline(cin,s);
istringstream is(s);

is>> x >> y >> z;

Answer 2

You're nearly there. operator>>() is the formatted extraction operator. Change the variables from type char to type int and you're good to go.

Answer 3

It sounds like you want to read in integers. You could do:

int x, y, z;

cout << "Please enter three integers: ";
cin >> x >> y >> z;

Answer 4

The reason you are getting those results is that since x,y and z are chars, when you use istringstream it reads the first character into x, it skips the space and reads the character '2' into y and the next character is '0' and that goes into z.

char x, y, z;
cout << "Please enter three integers: ";
cin >> x >> y >> z;

If that doesn't work, just use ints because trying to find a workaround to use chars instead of ints to save memory is worrying about the wrong thing here.