QSIG has two layers, called BC ( basic call ) and GF ( generic function ).
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In New Flavors ( a successor of Flavors ) and CLOS, methods are organized in " generic functions ".
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These generic functions are functions that are defined in multiple cases ( methods ) by class dispatch and method combinations.
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It provides the conditions under which a smooth attractor can be reconstructed from the observations made with a generic function.
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While Common Lisp Object System ( CLOS ) adds multiple dispatch to Common Lisp, not all functions are generic functions.
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However, most Common Lisp implementations provide a metaobject protocol which allows generic functions to provide application specific specialization and dispatch rules.
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"' sort "'is a generic function in the C + + Standard Library for doing comparison sorting.
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In this case the actual functionality might be defined in a single generic function, which takes a string and returns the errors.
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Another unusual feature is that methods do not " belong " to classes; classes do not provide a namespace for generic functions or methods.
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Later results replaced the smooth attractor with a set of arbitrary box counting dimension and the class of generic functions with other classes of functions.
