| Navigation: Language Reference > 3 - Variable Declarations > Data Types >====== UINT64 (64bit unsigned integer) ====== |    |
Coming in a future release
| label | UINT64([initial value]) | [,DIM( )] [,OVER( )] [,NAME( )] [,EXTERNAL] [,DLL] [,STATIC] |
| [,THREAD] [,AUTO] [,PRIVATE] [,PROTECTED] |
| UINT64 | A 64bit unsigned integer. Uses 8 bytes of memory. |
Range: 0 to 9,223,372,036,854,775,807
| 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. |
UINT64 declares an eight-byte unsigned integer. There is no sign bit in this configuration.
64-bits integer constants can't be used in an ITEMIZE structure. 64-bits integer constants and EQUATEs are not allowed in expressions in OMIT/COMPILE directives.
EQUATEs naming 64-bits integer constants are supported. Example: Count1 UINT64 !Declare 64bit unsigned integer Count3 UINT64,DIM(4) !Declare it an array of 4 Count4 UINT64(5) !Declare with initial value Count5 UINT64,EXTERNAL !Declare as external Count6 UINT64,EXTERNAL,DLL !Declare as external in a .DLL Count7 UINT64,NAME('SixCount') !Declare with external name see also: INT64**