Search results
Results From The WOW.Com Content Network
If a symbol is unknown, the Lisp reader creates a new symbol. In Common Lisp, symbols have the following attributes: a name, a value, a function, a list of properties and a package. [6] In Common Lisp it is also possible that a symbol is not interned in a package. Such symbols can be printed, but when read back, a new symbol needs to be created.
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 Elixir, sigils are provided via the "~" symbol, followed by a letter to denote the type of sigil, and then delimiters. For example, ~r(foo) is a regular expression of "foo". Other sigils include ~s for strings and ~D for dates. Programmers can also create their own sigils.
an atom is either a number or a symbol; a number is an unbroken sequence of one or more decimal digits, optionally preceded by a plus or minus sign; a symbol is a letter followed by zero or more of any characters (excluding whitespace); and; a list is a matched pair of parentheses, with zero or more expressions inside it.
In computer science, a literal is a textual representation (notation) of a value as it is written in source code. [1] [2] Almost all programming languages have notations for atomic values such as integers, floating-point numbers, and strings, and usually for Booleans and characters; some also have notations for elements of enumerated types and compound values such as arrays, records, and objects.
In computer science, a symbolic language is a language that uses characters or symbols to represent concepts, such as mathematical operations and the entities (or operands) on which these operations are performed. [1] Modern programming languages use symbols to represent concepts and/or data and are, therefore, examples of symbolic languages. [1]
In compiler construction, name mangling (also called name decoration) is a technique used to solve various problems caused by the need to resolve unique names for programming entities in many modern programming languages. It provides means to encode added information in the name of a function, structure, class or another data type, to pass more ...
In computer programming, an operator is a programming language construct that provides functionality that may not be possible to define as or has syntax different than a user-defined function. Examples include infix arithmetic (e.g. addition as a+b ), comparison (e.g. greater than as a>b ), logic (e.g. a AND b or a&&b ), assignment (e.g. a=b or ...