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From: stern@bnl.UUCP (Eric G. Stern)
Newsgroups: net.lang.f77
Subject: Re: (do) while loops
Message-ID: <165@bnl.UUCP>
Date: Tue, 29-Oct-85 21:40:41 EST
Article-I.D.: bnl.165
Posted: Tue Oct 29 21:40:41 1985
Date-Received: Sun, 3-Nov-85 09:32:17 EST
References: <144@oberon.UUCP> <5080001@acf4.UUCP>
Organization: Physics, SUNY StonyBrook
Lines: 17

> Most DEC compilers extend the underlying langauge to make it usable for
> system programming and comply with the requirements of various U.S.
> government standards that extend the ANSI and ISO language standards.
> 
> All DEC compilers which I have seen that extend a language have a
> switch ( usually /STANDARD) which causes the compiler to treat these
> extensions as (minor) errors and inform the user.  People writing
> portable code should always specify such a flag.  Failing to do so is
> like not 'lint'-ing one's C programs under Unix if you plan to port
> them elsewhere.

The FORTRAN manual also documents all language extensions in
blue.  It's no great trick to program in standard FORTRAN on
VMS.  Just stay away from the blue features.


					Eric G. Stern