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HP Fortran 90 Programmer's Reference: HP Fortran 90 Programmer's Reference > Chapter 10 HP Fortran 90 statements

INTEGER

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Declares entities of type integer.

Syntax

INTEGER [kind-spec] [[, attrib-list] ::] entity-list
kind-spec

is the kind type parameter that specifies the range of the entities in entity-list. kind-spec takes the form:

([KIND=] kind-param)

where kind-param can be a named constant or a constant expression that has the integer value of 1, 2, 4, or 8. The size of the default type is 4.

As an extension, kind-spec can take the form:

*len-param

where len-param is the integer 1, 2, 4, or 8
(default = 4).

attrib-list

is a list of one or more of the following attributes, separated by commas:

ALLOCATABLE

INTRINSIC

PRIVATE

DIMENSION

OPTIONAL

PUBLIC

EXTERNAL

PARAMETER

SAVE

INTENT

POINTER

TARGET

If attrib-list is present, it must be followed by the double colon. For information about individual attributes, see the corresponding statement in this chapter.

entity-list

is a list of entities, separated by commas. Each entity takes the form:

name [(array-spec)] [= initialization-expr]

where:

name

is the name of a variable or function

array-spec

is a comma-separated list of dimension bounds

initialization-expr

is an integer constant expression. If initialization-expr is present, entity-list must be preceded by the double colon.

Description

The INTEGER statement is used to declare the length and properties of data that are whole numbers. A kind parameter (if present) indicates the representation method.

The INTEGER statement is constrained by the rules for all type declaration statements, including the requirement that it precede all executable statements.

As a portability extension, HP Fortran 90 allows the following syntax for specifying the length of an entity:

name [*len] [(array-spec)] [= initialization-expr]

If (array-spec) is specified, *len may appear on either side of (array-spec). If name appears with *len, it overrides the length specified by INTEGER*size.

Examples

The following are valid declarations:

INTEGER i, j
INTEGER(KIND=2) :: k
INTEGER(2), PARAMETER :: limit=420
! initialize an array, using an array constructor
INTEGER, DIMENSION(4) :: ivec = (/1, 2, 3, 4 /)
! use the slash notation (an HP extension) to initialize
INTEGER i/-1/, j/-2/, k/-7/ ! note, no double colon
! the following declarations are equivalent; the second uses the
! HP length specification extension
INTEGER (KIND = 8) int1
INTEGER*4 int1*8

Related statements

BYTE

Related concepts

For related information, see the following:

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