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With the hack in the above example, when the lexer finds the identifier A it should be able to classify the token as a type identifier. The rules of the language would be clarified by specifying that typecasts require a type identifier and the ambiguity disappears. The problem also exists in C++ and parsers can use the same hack. [1]
The SPV sells 4 tranches of credit linked notes with a waterfall structure whereby: Tranche D absorbs the first 25% of losses on the portfolio, and is the most risky. Tranche C absorbs the next 25% of losses; Tranche B the next 25%; Tranche A the final 25%, is the least risky. Tranches A, B and C are sold to outside investors.
A decision problem is a question which, for every input in some infinite set of inputs, requires a "yes" or "no" answer. [2] Those inputs can be numbers (for example, the decision problem "is the input a prime number?") or values of some other kind, such as strings of a formal language.
In the C programming language, Duff's device is a way of manually implementing loop unrolling by interleaving two syntactic constructs of C: the do-while loop and a switch statement. Its discovery is credited to Tom Duff in November 1983, when Duff was working for Lucasfilm and used it to speed up a real-time animation program.
A snippet of C code which prints "Hello, World!". The syntax of the C programming language is the set of rules governing writing of software in C. It is designed to allow for programs that are extremely terse, have a close relationship with the resulting object code, and yet provide relatively high-level data abstraction.
We say that a class C of languages (or a subset of the power set of the natural numbers) is closed under many-one reducibility if there exists no reduction from a language outside C to a language in C. If a class is closed under many-one reducibility, then many-one reduction can be used to show that a problem is in C by reducing it to a problem ...
The dangling else is a problem in programming of parser generators in which an optional else clause in an if–then(–else) statement can make nested conditional statements ambiguous. Formally, the reference context-free grammar of the language is ambiguous, meaning there is more than one correct parse tree.
According to Bruce Tate, some of the most successful frameworks are simple generalizations of complex problems, and he says that Visual Basic, the Internet, and Apache web servers plug-ins are primary examples of such practice. [4] In the investigation of the semantics of language, many logicians find themselves facing this paradox.