expression
Any piece of program code in ahigh-levellanguage which, when (if) its execution terminates, returns avalue. In most programming languages, expressions consist ofconstants, variables, operators, functions, andparentheses.The operators and functions may be built-in or user defined.Languages differ on how expressions of differenttypes maybe combined - with some combination of explicitcasts andimplicitcoercions.
Thesyntax of expressions generally follows conventionalmathematical notation, though some languages such asLisp orForth have their own idiosyncratic syntax.Last updated:2001-05-14
Nearby terms:
exponential-time algorithm ♦Express ♦expression ♦expression tree ♦extend
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