| [Overview][Constants][Types][Procedures and functions][Variables][Index] | 
  | 
Returned by getopt,getlongopts to indicate that there are no more options.  | 
|
  | 
Specifies that a long option does not take an argument.  | 
|
  | 
Specifies that a long option optionally takes an argument.  | 
|
  | 
Character indicating an option on the command-line.  | 
|
  | 
Specifies that a long option needs an argument.  |