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Navigation: Language Reference > 3 - Variable Declarations > Data Types >====== UNSIGNED (unsigned integer) ======

label	UNSIGNED([initial value])	[,DIM( )] [,OVER( )] [,NAME( )] [,EXTERNAL] [,DLL] [,STATIC]
		[,THREAD] [,AUTO] [,PRIVATE] [,PROTECTED]

UNSIGNED	An unsigned integer which is a LONG.
initial value	A numeric constant. If omitted, the initial value is zero, unless the AUTO attribute is present.
DIM	Dimension the variable as an array.
OVER	Share a memory location with another variable.
NAME	Specify an alternate, “external” name for the field.
EXTERNAL	Specify the variable is defined, and its memory is allocated, in an external library. Not valid within FILE, QUEUE, or GROUP declarations.
DLL	Specify the variable is defined in a .DLL. This is required in addition to the EXTERNAL attribute.
STATIC	Specify the variable's memory is permanently allocated.
THREAD	Specify memory for the variable is allocated once for each execution thread. Also implicitly adds the STATIC attribute on Procedure Local data.
AUTO	Specify the variable has no initial value.
PRIVATE	Specify the variable is not visible outside the module containing the CLASS methods. Valid only in a CLASS.
PROTECTED	Specify the variable is not visible outside base CLASS and derived CLASS methods. Valid only in a CLASS.

UNSIGNED declares an unsigned integer which is a LONG. This is not actually a data type but an EQUATE defined in EQUATES.CLW.

The UNSIGNED data type is most useful for prototyping Windows API calls which take a LONG (or ULONG) parameter in their 32-bit version.

Example:

Count1 UNSIGNED !Declares a LONG