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SUBTRACT-CORRESPONDING

Short Reference

Other versions: 7.31 | 7.40 | 7.54

Obsolete Syntax

SUBTRACT-CORRESPONDING struc1 FROM struc2.

Effect

This statement is not allowed in classes and subtracts structures by component. Structures must be specified for struc1 and struc2. For all identically named components in struc1 and struc2, the component in struc1 is subtracted in pairs from the component in struc2 and the result is assigned to the relevant component of struc2.

The names are compared, as in the statement MOVE-CORRESPONDING. For each component pair with the same name comp, the statement

SUBTRACT struc1-comp FROM struc2-comp.

is executed, and the appropriate conversions are performed, if necessary.

Note

This statement is error-prone because, particularly in complex structures, it is not easy to check that components of the same name have the data type and content necessary for a numeric operation.

Exceptions

Catchable Exceptions

CX_SY_ARITHMETIC_OVERFLOW

• Cause: Overflow in conversion/arithmetic operation (T 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 (T 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