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From: Lynn McGuire <lynnmcguire5@gmail.com>
Newsgroups: comp.lang.fortran
Subject: Re: writing a module file in gfortran 14
Date: Wed, 4 Dec 2024 15:20:04 -0600
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On 12/4/2024 2:11 PM, Thomas Koenig wrote:
> Lynn McGuire <lynnmcguire5@gmail.com> schrieb:
>> Is the "implicit none" in the proper place in the following code ?
> 
> No.
> 
> [snip]
> 
> You want
> 
>>        module aaa_modules
>>
>>             implicit none
>>
>>             INTERFACE
>>               SUBROUTINE ABCPAR(ISW,IRETST,IR,IC,PAR,IPHASE)
>                   IMPLICIT NONE
> 
> ...
> 
> because declarations in the outer module have no meaning on
> interfaces.
> 
> A rather frequent source of confusion, I'm afraid (I got bitten
> by this myself in the past).

Woof !  I was afraid of that.  The Fortran Module definition seems to be 
very fragile.

That is going to be painful to add to my module file.

Lynn