Parameter

Statement Type:

The PARAMETER statement is a non-executable assignment statement It may also be used as an attribute in a data type statement (REAL, INTEGER, CHARACTER,...)

Statement Purpose:

The parameter statement's primary purpose is to define constants that will be used repeatedly within a program. Remember that variables that are assigned values with a PARAMETER statement can not have their values changed later on in the program.

Examples:

As a basic statement it can be used to assign values to one or more parameters.

		parameter (c=3.0e8)
		parameter (c=3.0e8,ymod=29.0e3,h=6.02e23)

It can also be used as an Attribute to simultaneously declare a parameter's type and value.

		real, parameter :: c = 3.0e8
		integer, Parameter :: lmax = 150, jmax = 20

Related Topics and Lectures:

data statement

lecture six

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