Search results
Results From The WOW.Com Content Network
Switch statements come in two main variants: a structured switch, as in Pascal, which takes exactly one branch, and an unstructured switch, as in C, which functions as a type of goto. The main reasons for using a switch include improving clarity, by reducing otherwise repetitive coding, and (if the heuristics permit) also offering the potential ...
Switch statements can allow compiler optimizations, such as lookup tables. In dynamic languages, the cases may not be limited to constant expressions, and might extend to pattern matching, as in the shell script example on the right, where the *) implements the default case as a glob matching any string.
If no matching case is found, then the default value is used. This is usually specified last with no associated "case" value, as seen in the syntax summary above, but it can also be specified at any point after the test string if the construct | #default = value is used (see the second example below). If no default is specified in either way ...
Switch statements can allow compiler optimizations, such as lookup tables. In dynamic languages, the cases may not be limited to constant expressions, and might extend to pattern matching, as in the shell script example on the right, where the '*)' implements the default case as a regular expression matching any string.
In these designs, the read and write usually occur at the same time. The switch must still arbitrate when there is an attempt to read and write a RAM slot at the same time. This is normally done by avoiding the case in the control software, by rearranging the connections in the switching fabric. (E.g. see Nonblocking minimal spanning switch)
(The switch statement construct in any case may not be available, or has confusingly differing implementations in high level languages . The control table concept, by comparison, has no intrinsic language dependencies, but might nevertheless be implemented differently according to the available data definition features of the chosen programming ...
Ben (Cole Sprouse) appears often throughout the show, but he doesn't always have lines, which is the case on his final episode. His last line came a few episodes earlier on "The One With Monica's ...
The end of the header section is indicated by an empty field line, resulting in the transmission of two consecutive CR-LF pairs. In the past, long lines could be folded into multiple lines; continuation lines are indicated by the presence of a space (SP) or horizontal tab (HT) as the first character on the next line.