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Allegro CL version 9.0
Unrevised from 8.2 to 9.0.
8.2 version

*infinity-single*

This constant has the value of IEEE single-float infinity. It is a legal floating-point value. In arithmetic operations, it produces infinities of appropriate sign and format (following standard floating-point coercion rules) or NaNs, but a finite number (in fact zero) only when divided into a finite number. See the linked discussion for more details.

Infinities like this one can result from normal arithmetic operations, such as a division by zero in a function with types declared and compiled so comp:trust-declarations-switch is true, but that same call run interpreted may instead signal an error.

See Floating-point infinities and NaNs, and floating-point underflow and overflow in implementation.htm. Also see *negative-infinity-single*, *infinity-double*, *negative-infinity-double*, *nan-double*, and *nan-single*


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This page was not revised from the 8.2 page.
Created 2012.5.30.

ToCDocOverviewCGDocRelNotesFAQIndexPermutedIndex
Allegro CL version 9.0
Unrevised from 8.2 to 9.0.
8.2 version