Question

I use cpptcl.hpp library to create TCL interpreters and evaluate some the expressions. Now I stuck in one problem: In one interpreter (Tcl::interpreter interp1;) I have a namespace called MyNamespace in one interpreter, where there are some variables and procedures defined, and I want to be able to evaluate some TCL expressions in another interpreter (Tcl::interpreter interp2;) by using the predefined variables and procedures in MyNamespace namespace. How I can do that?

Answer 1

You can’t. At least, not easily.

Of course, if your interp does only contain pure Tcl code, and no packages loaded, you are able, in principle, to serialize everything (to a string) and evaluate it in an another interp; the wiki has examples on this (search for “saving state” etc).

But to me it looks like you’re trying to create a “reference” interp and then use it as a kind of template. If so, I would instead just write a code which sets up an interp and then would call it each time to get an appropriately prepared interp.