Using Mapping Services › Type Conversion for MDO Assignment › Numeric-oriented Source Types

Numeric-oriented Source Types

Where the target is one of the numeric-oriented or transparent types, the local form of the source data is converted to the local form of the target. The source and target local form values are equal in most cases, although their external form output can differ depending on their respective types. The following, however are exceptions:

• If the source type is REAL and the target type is either BOOLEAN, INTEGER or ENUMERATED, then floating point integer value conversion (with rounding) is performed on the local form of the source data. Similarly, integer to floating point conversion is performed if the process is reversed.
• Conversion of local form source data to a BOOLEAN type target, results in X'00' (FALSE) if the source is non-zero. Otherwise, the target local form is converted to X'01' (TRUE).

Where the target is one of the graphic-oriented types, the external form output of the source data is assigned to the target as though it was external input.

In either case a type check results if the data is invalid for the source or target types.

Example: Numeric-oriented Source Types

&ASSIGN MDO=a.b.int TYPE=REAL DATA=99.99
                    -* target type is INTEGER
&ASSIGN VARS=RESULT FROM MDO=a.b.int
                    -* returns &RESULT = 100 (value rounded)
&ASSIGN MDO=a.b.bool DATA=TRUE
                    -* source type is BOOLEAN
&ASSIGN VARS=RESULT FROM MDO=a.b.bool TYPE=HEX
                    -* output type is HEX STRING
                    -* returns &RESULT = 01 (that is, TRUE)
&ASSIGN MDO=a.b.bit DATA=11101
                    -* source type is BIT STRING
&ASSIGN MDO=a.b.num FROM a.b.bit
                    -* target type is NumericString
&ASSIGN VARS=RESULT FROM MDO=a.b.num
                    -* returns &RESULT = 11101000