Detects operations one variables of type POINTER TO which are not = (equality), <> (inequality), + (addition), or ADR.
In CODESYS, pointer arithmetic is generally permitted and can also be used appropriately. Therefore, the addition of a pointer with an integer value is considered a common operation on pointers. This makes it possible to use a pointer to process an array of variable length. All other (unusual) operations with pointers are reported with SA0061.
Importance: High
PLCopen rule: E2 / E3
Example
PROGRAM PLC_PRG VAR piTemp : POINTER TO INT; iTemp : INT; END_VAR iTemp := iTemp + INT#1; piTemp := ADR(iTemp); piTemp := piTemp * DWORD#5; // SA0061 piTemp := piTemp / DWORD#2; // SA0061 piTemp := piTemp MOD DWORD#3; // SA0061 piTemp := piTemp + DWORD#1; piTemp := piTemp - DWORD#1; // SA0061 --> SA0061: Unusual operation on pointer