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DOUBLE PRECISION 90The DOUBLE PRECISION statement establishes the data type of a variable by explicitlyattaching the name of a variable to a double precision data type. This overrides the implication ofdata typing by the initial letter of a symbolic name.SyntaxThe syntax for DOUBLE PRECISION has two forms, a standard Fortran 90/95 entity based form,and the PGI extended form. This section describes both syntax forms.DOUBLE PRECISION [, attribute-list ::] entity-listattribute-listentity-listSyntax Extensionis the list of attributes for the double precision variable.is the list of defined entities.§DOUBLE PRECISION name [/clist/] [, name] [/clist/]...nameclistis the symbolic name of a variable, array, or an array declarator (see theDIMENSION statement for an explanation of array declarators).is a list of constants that initialize the data, as in a DATA statement.DescriptionType declaration statements may be used to dimension arrays explicitly in the same way as theDIMENSION statement. Type declaration statements must not be labeled. Note: The data type of asymbol may be explicitly declared only once. It is established by type declaration statement,IMPLICIT statement or by predefined typing rules. Explicit declaration of a type overrides anyimplicit declaration. An IMPLICIT statement overrides predefined typing rules.The default size of a DOUBLE PRECISION variable is 8 bytes.ExampleDOUBLE PRECISION PLONGELSE 77The ELSE statement begins an ELSE block of an IF block and encloses a series of statements thatare conditionally executed.Fortran Statements 79