`SysMemIsValidPointer` (FUN)

FUNCTION SysMemIsValidPointer : RTS_IEC_RESULT

Check if a pointer points to a valid address RETURN: Returns the runtime system error code (see CmpErrors_Itfs.library):

ERR_OK: Memory is valid

ERR_FAILED: Memory is invalid. Cannot be accessed with the requested access mode bWrite

InOut:

Scope	Name	Type	Comment
Return	`SysMemIsValidPointer`	`RTS_IEC_RESULT`
Input	`ptr`	POINTER TO BYTE	Pointer to the memory to be checked
	`udiSize`	`__XWORD`	Size of the memory to be checked
	`bWrite`	`BOOL`	TRUE=Check, if memory can be written, FALSE=Check only for read access

SysMemIsValidPointer (FUN)