Constants in the Rice

Constants

A constant in Rice is an identifier that returns a new instance with a constant value for each reference. It cannot be assigned an instance.

Only Rice or the application that uses it can define constants. It cannot be defined by the user. User can only refer to it as a preset identifier.

Reference priority

The constant has the lowest reference priority as the identifier. Therefore, the constant search is performed after the variables, fields, and getters are searched. If they have the same identifier as the constant, the constant is hidden. There is no special notation for referencing hidden constants.

Reserved variable

The following is a list of preset constants defined by Rice.

Name	Class	Description
MAIN	main	The instance of the main class.
DQ	string	The double quote character.
NL	string	The new line character.
TAB	string	The tab character.
CR	string	The carriage return character.
LF	string	The line feed character.
IMAX	int	The maximum value in the int class.
IMIN	int	The minimum value in the int class.
LMAX	long	The maximum value in the long class.
LMIN	long	The minimum value in the long class.
RMAX	real	The maximum value in the real class.
RMIN	real	The minimum value in the real class.
EPSILON	real	The machine epsilon.
NAN	real	The not a number.
NINF	real	The negative infinity.
PINF	real	The positive infinity.

These constant names are not reserved words. For details of preset constants, refer to each manual.