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Re: SIZE()

From: Paul Brook <paul at codesourcery dot com>
To: fortran at gcc dot gnu dot org,dave dot offiler at metoffice dot gov dot uk
Date: Thu, 10 Mar 2005 13:13:55 +0000
Subject: Re: SIZE()
Organization: CodeSourcery
References: <1110455122.3542.68.camel@eld091.desktop.frd.metoffice.com>

On Thursday 10 March 2005 11:45, Offiler, Dave wrote:
> Dear gfortran developers,
>
> This is not a bug, but perhaps in the class of 'unexpected, but not
> incorrect, behaviour'. This is just for your attention, but
> not (necessarily) for action as I'm sure there are vastly more
> important things to deal with.
>
> The issue is the return value from size() when the argument
> is an unassigned pointer - gfortran returns 1.
> This is illustrated in the attached code snippet. We feel that
> logically, size() should return zero in these cases (as the Intel and
> NAG compilers do) or a negative value. However, we  accept that any
> arbitrary value could be returned - as the result is probably undefined
> according the standards. Not that it should be relied upon, or in a good
> program, even allowed to occur!

Please file this as bug. http://gcc.gnu.org/bugzilla.
Bugzilla allows bugs to be marked as "enhancements", which may be appropriate 
in this case.

Paul

References:
- SIZE()
  - From: Offiler, Dave

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