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<div class="">On Mar 16, 2021, at 11:17 PM, Barry Smith <<a href="mailto:bsmith@petsc.dev" class="">bsmith@petsc.dev</a>> wrote:</div>
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So it actually does not load everything at the call to use but waits until the subroutine definitions and then only loads what you ask to import?
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<div class=""> Sorry, this is odd, with C include or python import it immediately loads up everything as soon as it sees the include or import, there is no way later to say "wo hoarsy I didn't really mean you should get everything I asked, for please only
load up a subset". </div>
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<div class="">But then Fortran was always weird, when I saw presentations of the Fortran standards committee members I always felt like they read every third page of some computer science book but never realized they missed many of the pages.</div>
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Which proves that they know their target audience ;)</div>
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<div>From the standpoint of somebody who also read every third page of a computer science book, fortran modules sounded like a good idea on the paper (I basically think of them as auto-generated header files), but they are miserable in practice, and in particular
a major block to cross compiler compatibility since the format of .mod file was left to the discretion of the compiler writers. </div>
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<div>Blaise</div>
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<div style="margin: 0px;" class="">A.K. & Shirley Barton Professor of Mathematics</div>
<div style="margin: 0px;" class="">Adjunct Professor of Mechanical Engineering</div>
<div style="margin: 0px;" class="">Adjunct of the Center for Computation & Technology</div>
<div style="margin: 0px;" class="">Louisiana State University, <span style="-webkit-text-decorations-in-effect: none;" class="">Lockett Hall Room 344, </span><span style="-webkit-text-decorations-in-effect: none;" class="">Baton Rouge, LA 70803, USA</span></div>
<div style="margin: 0px;" class=""><span style="-webkit-text-decorations-in-effect: none;" class="">Tel. +1 (225) 578 1612, Fax +1 (225) 578 4276 Web </span><span style="-webkit-text-decorations-in-effect: none;" class=""><a href="http://www.math.lsu.edu/~bourdin" class="">http://www.math.lsu.edu/~bourdin</a></span></div>
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