exceptional conditions. Pros: The control flow of normal operation code is not cluttered by error- handling code. It also allows the control flow to skip multiple frames when a certain condition occurs, e preferable to if len(seq): or if not len(seq):. • When handling integers, implicit false may involve more risk than benefit (i.e., accidentally handling None as 0). You may compare a value which is known to consistent TODO format that can be searched to find the person who can provide more details upon request. A TODO is not a commitment that the person referenced will fix the problem. Thus when you create

virtual functions. If appropriate for your code , terminating the program may be an appropriate error handling response. Oth- erwise, consider a factory function or Init() method. Avoid Init() methods on objects that are designed to transparently wrap other types. In that case, contact your project leads to request a waiver of this rule. Constructors that cannot be called with a single argument should usually the same result. If you need to use a macro to define an interface, contact your project leads to request a waiver of this rule. The following usage pattern will avoid many problems with macros; if you

not. Default is TRUE. # # Returns: # The sample covariance between x and y. n <- length(x) # Error handling if (n <= 1 || n != length(y)) { stop("Arguments x and y have different lengths: ", length(x), "

response from SIGMOD and only re-submit elsewhere if your paper is rejected - or withdrawn at your request - from SIGMOD. This restriction applies not only to identical papers but also to papers with a

original words is almost entirely disregarded. Exam- ples: Prose form Correct Incorrect “XML HTTP request” XmlHttpRequest XMLHTTPRequest “new customer ID” newCustomerId newCustomerID “inner stopwatch” innerStopwatch