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From: Clive Page <usenet@page2.eu>
Newsgroups: comp.lang.fortran
Subject: Re: Is there a way in Fortran to designate an integer value as
 integer*8 ?
Date: Thu, 3 Oct 2024 22:28:31 +0100
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On 03/10/2024 20:59, Steven G. Kargl wrote:
> My personal recommendation would be to do a proper porting from
> integer (aka integer*4) to integer(kind=8).  And, yes, 8 in the
> 'kind=8' is not portable.
> 

Yes because different compilers use different integer kind numbers for different purposes: at least one uses kinds 1, 2, 3, 4 for the four most common numbers of bytes where other compilers use 1, 2, 4, 8.   But if you use integer(kind=int64) this is portable.

-- 
Clive Page