Detecting Alphabetic Data

How do you detect alphabetic data being entered into an integer field from a cin statement?

The easiest way to do that is by having cin read a string rather than an int. Then you can examine the string to detect its validity. For example:

#include #include using std::string;using std::cout;using std::cin;int main(){  bool error = false;  string data;  cout<<"enter your age: ";  cin>>data;  for (unsigned int i = 0; i< data.length(); i++)  {    if ( ! isdigit(data[i]) )    {     cout<< "illegal input";     error = true;     break;    }  // continue normally  }}

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