In addition, you can throw as many different types of objects as you want. Typically, you’ll throw a different type for each category of error. The idea is to store the information in the object and in thename of its class so that someone in a calling context can figure out what to do with your exception.. Any furthercatch clauses for the sametry block are still ignored—thethrow causes the exception to go to the exception handlers in the next-higher context. In addition, everything about the exception object is preserved, so the handler at the higher context that catches the specific exception type can extract any information the object may contain.. ifstream f(“Tracetst.cpp”);. Replacing string characters. cout<< flush;. causes a variable namedIt to be declared of typeSeq::iterator. If you mean to create a new type name, you should usetypedef, as usual, as in:.. · The return type ofX::f( ), which isE, is not a dependent name, so it is looked up when the template is parsed, and thetypedef namingE as adouble is found. This may seem strange, since with non-template classes the declaration ofE in the base class would be found first, but those are the rules. (The base class,Y, is adependent base class, so it can’t
be searched at template definition time).. #include. v1 = v2 + v3; // add two vectors. const int sasz = sizeof sa / sizeof *sa;. print(ns.begin(), ns.end(), “ns”, ” “);. busy = false;. cout<< (BS(a) ^= b)<< " [a ^= b]"<< endl;. std::ostringstream os;. Note that theChopstickobjects do not need internal identifiers; they are identified by their position in the arrayc. EachPhilosopher is given a reference to a left and rightChopstick object when constructed; these are the utensils that must be picked up before thatPhilosopher can eat. EveryPhilosopher except the last one is initialized by situating thatPhilosopher between the next pair ofChopstick objects. The lastPhilosopher is given the zerothChopstick for its rightChopstick, so the round table is completed. That’s because the lastPhilosopher is sitting right next to the first one, and they both share that zeroth chopstick. With this arrangement, it’s possible at some point for all the philosophers to be trying to eat and waiting on the philosopher next to them to put down their chopstick, and the program will deadlock..