[ET Trac] [Einstein Toolkit] #1307: Support/Evaluate expressions also in default values within param.ccl (e.g. $parfile)

[Einstein Toolkit]

#1307: Support/Evaluate expressions also in default values within param.ccl (e.g.
$parfile)
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  Reporter:  eschnett  |       Owner:  knarf@…          
      Type:  defect    |      Status:  new              
  Priority:  minor     |   Milestone:  ET_2013_11       
 Component:  Other     |     Version:                   
Resolution:            |    Keywords:                   
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Comment (by rhaas):

 > extern "C" void *CCTK_EvaluateExpr(const char *expr,int *type);
 It might be good to add the word "Parameter" somwhere in the function
 name. For the trigger thorn (ticket ) we also wanted to expose a flesh
 function to evaluate expressions containing both parameters and grid
 scalars as variables. The later one might be all fancy and allow the user
 to choose which variables to expand (parameters, grid scalars, both, none)
 and even let the caller pass in an extra list of name-value pairs for
 private variables that one wants to use.

 Should the routine CCTK_EvaluateExpr be public or flesh internal (ie CCTK
 or CCTKi)?

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Ticket URL: <https://trac.einsteintoolkit.org/ticket/1307#comment:7>
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