int getInteger(string prompt = "");

Reads a complete line from cin and scans it as an integer. If the scan succeeds, the integer value is returned. If the argument is not a legal integer or if extraneous characters (other than whitespace) appear in the string, the user is given a chance to reenter the value. If supplied, the optional prompt string is printed before reading the value.

Usage:

int n = getInteger(prompt);

double getReal(string prompt = "");

Reads a complete line from cin and scans it as a floating-point number. If the scan succeeds, the floating-point value is returned. If the input is not a legal number or if extraneous characters (other than whitespace) appear in the string, the user is given a chance to reenter the value. If supplied, the optional prompt string is printed before reading the value.

Usage:

double x = getReal(prompt);

string getLine(string prompt = "");

Reads a line of text from cin and returns that line as a string. The newline character that terminates the input is not stored as part of the return value. If supplied, the optional prompt string is printed before reading the value.

Usage:

string line = getLine(prompt);