INTEGER

The INTEGER statement specifies the type to be integer for a symbolic constant, variable, array, function, or dummy function.

Optionally, it specifies array dimensions and size and initializes with values.

INTEGER [*len[,]] v[* len[/c/]] [, v[*len[/c/]] ...

Parameter	Description
v	Name of a symbolic constant, variable, array, array declarator, function, or dummy function
len	Either 2, 4, or 8, the length in bytes of the symbolic constant, variable, array element, or function.
c	List of constants for the immediately preceding name

Description

The declarations can be: INTEGER, INTEGER*2, INTEGER*4, INTEGER*8.

INTEGER

For a declaration such as INTEGER H, the variable H is usually one INTEGER*4 element in memory, interpreted as a single integer number. Specifying the size is nonstandard. @

If you do not specify the size, a default size is used. The default size, for a declaration such as INTEGER H, can be altered by compiling with any of the options -dbl, -i2, -r8, or -xtypemap. See the discussion in Chapter 2 for details.

INTEGER*2 @

For a declaration such as INTEGER*2 H, the variable H is always an INTEGER*2 element in memory, interpreted as a single integer number.

INTEGER*4 @

For a declaration such as INTEGER*4 H, the variable H is always an INTEGER*4 element in memory, interpreted as a single integer number.

INTEGER*8 @

For a declaration such as INTEGER*8 H, the variable H is always an INTEGER*8 element in memory, interpreted as a single integer number.

Restrictions

Do not use INTEGER*8 variables or 8-byte constants or expressions when indexing arrays, otherwise, only 4 low-order bytes are taken into account. This action can cause unpredictable results in your program if the index value exceeds the range for 4-byte integers.

Examples

Example 1: Each of these integer declarations are equivalent:

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       INTEGER U, V(9) 
       INTEGER*4 U, V(9) 
       INTEGER U*4, V(9)*4 

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Example 2: Initialize:

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       INTEGER U / 1 /, V / 4 /, W*2 / 1 /, X*2 / 4 / 

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