| Free-Form Syntax | IF{(MR)} indicator-expression |
| Code | Factor 1 | Extended Factor 2 | ||||
|---|---|---|---|---|---|---|
| IF (M/R) | Blank | indicator-expression | ||||
The IF operation code allows a series of operation codes to be processed if a condition is met. Its function is similar to that of the IFxx operation code. It differs in that the logical condition is expressed by an indicator valued expression (indicator-expression). The operations controlled by the IF operation are performed when the expression in the indicator-expression operand is true. For information on how operation extenders M and R are used, see Precision Rules for Numeric Operations.
For more information, see Structured Programming Operations.
CL0N01Factor1+++++++Opcode(E)+Extended-factor2+++++++++++++++++++++++++++..
C Extended-factor2-continuation+++++++++++++++
* The operations controlled by the IF operation are performed
* when the expression is true. That is A is greater than 10 and
* indicator 20 is on.
C
C IF A>10 AND *IN(20)
C :
C ENDIF
*
* The operations controlled by the IF operation are performed
* when Date1 represents a later date then Date2
C
C IF Date1 > Date2
C :
C ENDIF
*