[ET Trac] [Einstein Toolkit] #1378: provide equivalent of fprintf(stderr, "%s\n", msg) in Fortran

[Einstein Toolkit]

#1378: provide equivalent of fprintf(stderr, "%s\n", msg) in Fortran
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  Reporter:  rhaas        |       Owner:                     
      Type:  enhancement  |      Status:  new                
  Priority:  minor        |   Milestone:                     
 Component:  Cactus       |     Version:  development version
Resolution:               |    Keywords:                     
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Comment (by knarf):

 I think OSX uses \n as well. Only the older MacOS used \r.

 Concerning the prefix: For a multi-line warning I would actually rather
 avoid the duplicate prefix, and just use a "\n" (in whatever form this
 works) as first character to get an output of the form
 {{{
 WARNING[L1,P0] (GRHydro):
 0
 0
 }}}
 GRHydro might be fine with the other option, but especially for thorns
 with longer names it would reduce the available space per line quite a
 bit.

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Ticket URL: <https://trac.einsteintoolkit.org/ticket/1378#comment:5>
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