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13.17.9 Floating point optimization of +, - and *

Calls to cl:+ , cl:- and cl:* with more than 4 arguments are now optimized with the float 0 and safety 0 declaration. This improvement was actually made in LispWorks 5.1, however the documentation in LispWorks 6.0 and earlier stated that the optimization would not happen with more than 4 arguments.


LispWorks Release Notes and Installation Guide - 23 Dec 2011

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