mapping symbol list to a value list

Really? That works fine for me (and it should work).  The only way I can think of it not working is if you're using SKILL++ (i.e. have a ".ils" suffix on your source file, or have done toplevel('ils) interactively in the CIW). If that's what you've done, then this would be necessary:

mapcar(lambda((x y) set(x y theEnvironment())) symbolList valueList)

If you are using IC615, then a better approach is to use destructuringBind(). As follows:

destructuringBind((cv bBox layer) valueList
  println(cv)
  println(bBox)
  println(layer)
)

Note that the form creates variables local to the destructuringBind.

Regards,

Andrew.

Thanks Andrew.

I'm actually using SKILL++ and I never thought its because of that, which took me many hours to debug.

Several of the forms which deal with variable access and evaluation have alternative forms to allow them to cope with the different binding rules in SKILL++. For example, set(), symeval(), eval(), and so on. This is because they wouldn't otherwise know whether you were trying to refer to a SKILL dynamically scoped variable or a SKILL++ lexically scoped variable - and hence they need to know which SKILL++ environment is active - so you pass theEnvironment() to solve this. This is covered in the SKILL++ documentation (in the Language User Guide, if my memory is correct; not at work today), so definitely worth reading.

Regards,

Andrew.