operator (computer programming) wikipedia - EAS
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In computer programming, operators are constructs defined within programming languages which behave generally like functions, but which differ syntactically or semantically. Common simple examples include arithmetic (e.g. addition with +), comparison (e.g. "greater than" with >), and logical
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See moreSyntactically operators usually contrast to functions. In most languages, functions may be seen as a special form of prefix operator with fixed precedence level and associativity, often with compulsory parentheses e.g.
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See moreCommon examples that differ syntactically are mathematical arithmetic operations, e.g. ">" for "greater than", with names often outside the language's set of identifiers for
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See moreThe semantics of operators particularly depends on value, evaluation strategy, and argument passing mode (such as boolean short-circuiting). Simply, an expression involving an operator is
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See moreA language may contain a fixed number of built-in operators (e.g. +, -, *, <, <=, !, =, etc. in C and C++, PHP), or it may allow the creation of programmer-defined operators (e.g. Prolog
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See moreA compiler can implement operators and functions with subroutine calls or with inline code. Some built-in operators supported by a language have a
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