Question

i wonder if any one can tell me what is the return value of any scanf and cin statement ?

Answer 1

please can you explain your question?
what do you think about scanf() function?? and cin??

Answer 2

The scanf commands return the number of input items assigned. The man page explains it well.

Answer 3

scanf and cin takes the user's input and assigns that value(s) to 1 or more variables. It does not technically return a value unless you mean the value entered by the user, e.g.

string name;
cout << "Enter name : ";
cin >> name;

The last statement gives a value to the string variable name, but does not return anything to standard output.