IDL Problem Code `37` with alias `reserved-func-method`

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Warning

Potentially fatal error depending on if the internal routine is written in PRO code or in core IDL/ENVI

If you have a function method definition that conflicts with a core IDL definition, this gets reported.

idl

function list::where
       ; ^^^^^^^^^^^ problem
  return, 1
end

To correct, rename your method as something else.

idl

function list::myWhere
  return, 1
end

IDL Problem Code 37 with alias reserved-func-method ​