Fedora 22 Update: gappa-1.2.0-1.fc22

updates at fedoraproject.org updates at fedoraproject.org
Fri Jul 3 18:50:43 UTC 2015


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Fedora Update Notification
FEDORA-2015-10662
2015-06-24 11:14:32
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Name        : gappa
Product     : Fedora 22
Version     : 1.2.0
Release     : 1.fc22
URL         : http://gappa.gforge.inria.fr/
Summary     : Prove programs with floating-point or fixed-point arithmetic
Description :
Gappa is a tool intended to help verifying and formally prove
properties on numerical programs and circuits handling floating-point
or fixed-point arithmetic.  This tool manipulates logical formulas
stating the enclosures of expressions in some intervals.  Through the
use of rounding operators as part of the expressions, Gappa is specially
designed to deal with formulas that could appear when certifying numerical
codes. In particular, Gappa makes it simple to bound computational errors
due to floating-point arithmetic.  The tool and its documentation were
written by Guillaume Melquiond.

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Update Information:

Changes in gappa 1.2.0:
* fact database
  - improved handling of powers of two in mul_flt
  - fixed incorrect computation of the order-3 term of the relative error for division
  - added rewriting rules for emulating reverse propagation
* proof graph
  - improved proof simplification
* proof paths
  - improved performances by avoiding some absolute values
  - improved detection of approximate/exact pairs of expressions

Changes in gappalib-coq 1.1.0:
- moved to Flocq 2.4
- added support for Gappa 1.2.0

Changes in why3 0.86.1:
- improved task highlighting for negated premises (contributed by Mikhail Mandrykin, AstraVer project)

Frama-c and why were merely rebuilt due to the other changes.
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ChangeLog:

* Fri Jun 12 2015 Jerry James <loganjerry at gmail.com> - 1.2.0-1
- New upstream version
* Sat May  2 2015 Kalev Lember <kalevlember at gmail.com> - 1.1.2-3
- Rebuilt for GCC 5 C++11 ABI change
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This update can be installed with the "yum" update program.  Use
su -c 'yum update gappa' at the command line.
For more information, refer to "Managing Software with yum",
available at http://docs.fedoraproject.org/yum/.

All packages are signed with the Fedora Project GPG key.  More details on the
GPG keys used by the Fedora Project can be found at
https://fedoraproject.org/keys
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