Some notes on the possible under/overflow of the most common elementary functions

Abstract : The purpose of this short note is not to describe when underflow or overflow must be signalled (it is quite clear that the rules are the same as for the basic arithmetic operations). We just want to show that for some of the most common functions and floating-point formats, in many cases, we can know in advance that the results will always lie in the range of the numbers that are representable by normal floating-point numbers, so that in these cases there is no need to worry about underflow or overflow. Note that when it is not the case, an implementation is still possible using a run-time test.
Type de document :
Pré-publication, Document de travail
2007
Liste complète des métadonnées

Littérature citée [4 références]  Voir  Masquer  Télécharger

https://hal-ens-lyon.archives-ouvertes.fr/ensl-00149414
Contributeur : <>
Soumis le : vendredi 25 mai 2007 - 15:16:46
Dernière modification le : vendredi 29 septembre 2017 - 13:44:03
Document(s) archivé(s) le : vendredi 21 septembre 2012 - 15:52:07

Fichier

underflow.pdf
Fichiers produits par l'(les) auteur(s)

Identifiants

  • HAL Id : ensl-00149414, version 1
  • Mot de passe :

Collections

Citation

Jean-Michel Muller, Vincent Lefèvre. Some notes on the possible under/overflow of the most common elementary functions. 2007. 〈ensl-00149414〉

Partager

Métriques

Consultations de la notice

137

Téléchargements de fichiers

69