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SUBTRACT

Short Reference

Other versions: 7.31 | 7.40 | 7.54

Syntax

SUBTRACT dobj1 FROM dobj2. 

Effect

This statement has the same effect as the statement

dobj2 = dobj2 - dobj1.

The content of dobj1 is subtracted from the content of dobj2 and the result is assigned to dobj2. The data objects dobj1 and dobj2 have to be numeric. Only data objects can be specified, no calls or other expressions. The calculation type is determined like an arithmetic expression.

Programming Guideline

Using Operator Format

Note

One obsolete form of the statement SUBTRACT is SUBTRACT-CORRESPONDING.

Exceptions

Catchable Exceptions

CX_SY_ARITHMETIC_OVERFLOW

• Cause: Overflow in conversion/arithmetic operation (type p)
  Runtime Error: BCD_OVERFLOW
• Cause: Integer overflow after subtraction
  Runtime Error: COMPUTE_INT_MINUS_OVERFLOW
  

CX_SY_CONVERSION_OVERFLOW

• Cause: Overflow in conversion/arithmetic operation (type p, with specified length)
  Runtime Error: BCD_FIELD_OVERFLOW
  

Non-Catchable Exceptions

• Cause: p field does not contain the correct BCD format
  Runtime Error: BCD_BADDATA