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Expression




<programming> Any piece of program code in a high-level language which, when (if) its execution terminates, returns a value.

In most programming languages, expressions consist of constants, variables, operators, functions, and parentheses. The operators and functions may be built-in or user defined. Languages differ on how expressions of different types may be combined - with some combination of explicit casts and implicit coercions.

The syntax of expressions generally follows conventional mathematical notation, though some languages such as Lisp or Forth have their own idiosyncratic syntax.



< Previous Terms Terms Containing expression Next Terms >
exponent
exponential
exponential-time
exponential-time algorithm
Express
abstract interpretation
abstract syntax
actual argument
A-language
Algebraic Logic Functional language
expression tree
extend
Extended Affix Grammar
Extended ALGOL
Extended Architecture


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