This is the mail archive of the gcc@gcc.gnu.org mailing list for the GCC project.

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]
Other format:	[Raw text]

Re: [PATCH][4.3] Deprecate -ftrapv

From: FX Coudert <fxcoudert at gmail dot com>
To: Robert Dewar <dewar at adacore dot com>
Cc: Toon Moene <toon at moene dot indiv dot nluug dot nl>, GCC Development <gcc at gcc dot gnu dot org>, ddaney at avtrex dot com, Richard Guenther <richard dot guenther at gmail dot com>, mark at codesourcery dot com
Date: Thu, 6 Mar 2008 17:19:12 +0000
Subject: Re: [PATCH][4.3] Deprecate -ftrapv
References: <4B9FFA6D-CAA5-4A3C-A36A-CA462DE8AB42@gmail.com> <47D001ED.1090105@moene.indiv.nluug.nl> <47D00AF3.7030901@adacore.com>

In Fortran, integers are used to index arrays. So if you want integer overflow checking, use -fbounds-check :-)
I know there is a smiley here, but it seems to me that range checking
is quite different from overflow checking.

I think what Toon was alluding to is that "real" Fortran programmers don't use integers except for array subscripts. Real life is floating- point based!

FX

--
François-Xavier Coudert
http://www.homepages.ucl.ac.uk/~uccafco/

Follow-Ups:
- Re: [PATCH][4.3] Deprecate -ftrapv
  - From: Robert Dewar

References:
- Re: [PATCH][4.3] Deprecate -ftrapv
  - From: FX Coudert
- Re: [PATCH][4.3] Deprecate -ftrapv
  - From: Toon Moene
- Re: [PATCH][4.3] Deprecate -ftrapv
  - From: Robert Dewar

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]