GUIDELINE 6.18
Dividing by Zero
ABAP_BACKGROUND
Division by zero is forbidden in all recognized programming languages
and raises an exception. This is also the case in ABAP, but with the
difference that the exception cx_sy_zerodivide is not raised if
the dividend is also zero when divided by zero. In this case, the
division in ABAP produces the result 0.
ABAP_RULE
Preventing Division by Zero
Do not exploit the fact that ABAP permits division by zero if the
dividend itself is zero.
ABAP_DETAILS
This ABAP behavior is arbitrary and does not produce the result expected
by the user. Avoid using it if at all possible. Instead, set
preconditions that avoid division by zero or specify explicitly that the
correct exception is raised for the case 0/0.
Example ABAP Coding
The following source code always raises an exception when the divisor
has the value 0.
IF divisor <(><<)>> 0.
result = dividend / divisor.
ELSE.
RAISE EXCEPTION TYPE cx_sy_zerodivide.
ENDIF.
Documentation extract taken from SAP system, � Copyright SAP AG. All rights reserved