[petsc-dev] GCC8 Fortran length changes from int to size_t

[Smith, Barry F.]

> On May 7, 2018, at 3:56 AM, Lisandro Dalcin <dalcinl at gmail.com> wrote:
> 
> On Mon, 7 May 2018 at 03:11, Jed Brown <jed at jedbrown.org> wrote:
> 
>> Lisandro Dalcin <dalcinl at gmail.com> writes:
> 
>>>>> How do you exactly want to implement that? Totally replace these
>>>>> special functions with the BIND(C) interface that calls directly the
> C
>>>>> function, or rather generate a native Fortran subroutine that calls
>>>>> the C function through a BIND(C) interface?
>>> 
>>>> The latter.  Usage should not change for existing Fortran users.
>>> 
>>> Things may end up being involved anyway, even if using ISO_C_BINDINGS.
>>> 
>>> http://fortranwiki.org/fortran/show/Generating+C+Interfaces#strings
> 
>> I guess I don't understand.  Are you concerned about the string copying?
>> Note that FIXCHAR (used in current interfaces) allocates memory.
> 
> Well, no, my point is that an automatic interface generator based on
> ISO_C_BINDINGS (as Barry wanted) may prove slightly harder to implement
> than expected.

   I see no benefit in using the ISO_C_BINDINGS for the Fortran functions with char * arguments either automatically or manually so let's stick to the current model.

   Barry

> 
> 
> -- 
> Lisandro Dalcin
> ============
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