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Self-documenting code is ostensibly written using human-readable names, typically consisting of a phrase in a human language which reflects the symbol's meaning, such as article.numberOfWords or TryOpen. The code must also have a clear and clean structure so that a human reader can easily understand the algorithm used.
this, self, and Me are keywords used in some computer programming languages to refer to the object, class, or other entity which the currently running code is a part of. The entity referred to thus depends on the execution context (such as which object has its method called). Different programming languages use these keywords in slightly ...
However, bar executes in the context of the a object, for example, its self identifier refers to a rather than to b. When delegation is used, the question arises: What is the value of self when evaluating a method on object a, which is delegated to a method on object b? The identity is split: it can refer to a or b.
All mangled symbols begin with _Z (note that an identifier beginning with an underscore followed by a capital letter is a reserved identifier in C, so conflict with user identifiers is avoided); for nested names (including both namespaces and classes), this is followed by N, then a series of <length, id> pairs (the length being the length of ...
In computer programming languages, an identifier is a lexical token (also called a symbol, but not to be confused with the symbol primitive data type) that names the language's entities. Some of the kinds of entities an identifier might denote include variables , data types , labels , subroutines , and modules .
In COBOL, a fully qualified data item name can be created by suffixing a potentially ambiguous identifier with an IN (or OF) phrase. For example, multiple data item records might contain a member item named ACCOUNT-ID , so specifying ACCOUNT-ID IN CUSTOMER serves to disambiguate a specific ACCOUNT-ID data item, specifically, the one that is a ...
A few languages do not have any reserved words; Fortran and PL/I identify keywords by context, while Algol 60 and Algol 68 generally use stropping to distinguish keywords from programmer-defined identifiers, e.g. .if or 'if or 'if' or ifis a keyword distinct from identifier if. Most programming languages have a standard library (or libraries ...
In programming languages, a label is a sequence of characters that identifies a location within source code. In most languages, labels take the form of an identifier, often followed by a punctuation character (e.g., a colon). In many high-level languages, the purpose of a label is to act as the destination of a GOTO statement.