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Definition of "Automatic Variable" |
In computer programming, an automatic variable is a variable which is allocated and deallocated automatically when program flow enters and leaves the variable's context. This primarily applies to lexically-scoped variables, where the context is the lexical context, particularly the function or block in which a variable is defined. Note that inside a function call within a context, a variable moves out of scope (is inaccessible to the called function) but is not deallocated, coming back in scope when the function returns. |
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