Chongkai Zhu wrote: > > You can do either. (Assuming you are using PLT Scheme v372,) Please > refer to chapter 4 and 9 about the current-namespace parameter. > Chapter 4 and 9 of "Inside PLT MzScheme". If you are writing C code, then I feel passing Scheme_Env* around will be more handy. But you can use the parameter.