Input

• We have already briefly looked at the stream extraction operator, or get from (>>)
• What is the behavior for char? string?
• Some other character/string input functions
  • getline(stream, string)
  • getline(cin,aStringVar)
  • getline consumes, but does not store the new line character.
  • stream.get(chartype)
  • cin.get(aChar)
  • stream.ignore(lenght, character)
  • Newline character is '\n'
  • cin.ignore(80,'\n');
  • cin >> instring; will not consume any white space following the word input, even a new line character.
• integer input
  • Whitespace characters are ignored
  • If a non digit is encountered (or +/-) then the stream goes into error
  • reads optional (+/-)
  • Reads digits until a non digit is encountered.
  • The nondigit is not consumed
• Floating point is much the same, but it can read the entire set of optional floating point numbers.
• Trace some input.