Length of the ERRMSG result

[Francisco Pena]

Thank you again for your answer. Let's see if somebody can clarify
whether the maximum size of the ERRMSG result depends on the compiler
or the OS.

Best,
Fran

2014-09-30 21:31 GMT+02:00 Steve Kargl <sgk@troutmask.apl.washington.edu>:
> I just told you.  The length is whatever you set in the
> declaration.  Now, if you meant to ask 'how do I determine
> if my buffer's length is sufficient to hold the entire errmsg
> from allocate?'  The answer is that 'it is (likely) OS dependent'
> as the errors generated by say MS Windows (may) differ from those
> generated by FreeBSD.
>
> I haven't looked, bu suspect that gfortran internal generates
> a dynamic errmsg via alloca and copies into whatever is associated
> by ERRMSG=.
>
> --
> steve
>
> On Tue, Sep 30, 2014 at 06:30:17PM +0200, Francisco Pena wrote:
>> Thank you Steve, I agree. But I imagine that there is a specific
>> length in the implementation of ALLOCATE for the gfortran compiler
>> that ensures that all error messages must fit in this length. In my
>> humble opinion, this information could be in the Manual.
>>
>> Best,
>> Fran
>>
>> 2014-09-30 18:23 GMT+02:00 Steve Kargl <sgk@troutmask.apl.washington.edu>:
>> > On Tue, Sep 30, 2014 at 06:08:10PM +0200, Francisco Pena wrote:
>> >>
>> >> I was trying to find the length of the character result of argument
>> >> ERRMSG in ALLOCATE for the gfortran compiler. I am unable to find this
>> >> data in the gfortan Documentation. Is there also a place to consult
>> >> which are the errors that gfortran can return in ALLOCATE?
>> >>
>> >
>> > I could be wrong, but the length is set by the user.
>> > You do something like
>> >
>> > character(len=10) err
>> > ...
>> > allocate(..., errmsg=err)
>> >
>> > If an error occurs, you get up to 10 characters of information.
>> > So, you need to provide a sufficiently long buffer if you expect
>> > a long error message.
>> >
>> > --
>> > Steve
>>
>>
>>
>> --
>>
>> Francisco José Pena Brage
>> Departamento de Matemática Aplicada
>> Facultade de Matemáticas. Campus Vida
>> 15782 Santiago de Compostela - Spain
>> Tel.: +34 8818 13194
>> Fax: +34 8818 13197
>> Email: fran(dot)pena(at)usc(dot)es
>> http://www.usc.es/ingmat
>
> --
> Steve



-- 

Francisco José Pena Brage
Departamento de Matemática Aplicada
Facultade de Matemáticas. Campus Vida
15782 Santiago de Compostela - Spain
Tel.: +34 8818 13194
Fax: +34 8818 13197
Email: fran(dot)pena(at)usc(dot)es
http://www.usc.es/ingmat