the module does not have a separate pack and unpack method ... the module is using the core pack and unpack of Perl

Sorry, that's not correct. As the AM post pointed out, those methods are coming from XS, specifically SysV.xs. It appears the job of IPC::SharedMem::stat::unpack is to take the fields of struct shmid_ds and store them in a Perl object of type IPC::SharedMem::stat (defined in IPC::SharedMem).

In reply to Re^2: IPC::SharedMem::stat using Class::Struct (UPDATED) by haukex
in thread IPC::SharedMem::stat using Class::Struct by sprinter

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