[ET Trac] [Einstein Toolkit] #2106: Make ParseFile.c more robust

[Einstein Toolkit]

#2106: Make ParseFile.c more robust
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  Reporter:  eschnett  |       Owner:                     
      Type:  defect    |      Status:  reopened           
  Priority:  unset     |   Milestone:                     
 Component:  Cactus    |     Version:  development version
Resolution:            |    Keywords:                     
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Comment (by eschnett):

 That's not a valid optimization. The "usual arithmetic conversions" mean
 that both LHS and RHS of the comparison operator are converted to unsigned
 before the comparison
 <https://wiki.sei.cmu.edu/confluence/display/c/INT02-C.+Understand+integer+conversion+rules>.

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Ticket URL: <https://trac.einsteintoolkit.org/ticket/2106#comment:8>
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