SA0060: Zero used as invalid operand
Detects operations where an operand with the value 0 causes an invalid or a nonsense operation
Justification: This kind of expression could be an indication of a programming error. In any case, it unnecessarily wastes runtime.
Importance: Medium
Example 71. Example
PROGRAM PLC_PRG
VAR
byTemp1 : BYTE;
wTemp2 : WORD;
dwTemp3 : DWORD;
END_VAR
byTemp1 := byTemp1 + 0; wTemp2 := wTemp2 - WORD#0; dwTemp3 := dwTemp3 * DWORD#0;
Output in the Messages view:
SA0060: Zero used as invalid operand