Hello, While playing with Eina_Inlist, I noticed that given a pointer to an Eina_Inlist, one can't easily get a pointer to the structure containing it. The only option now is to put the Eina_Inlist first in the structure, and then cast this structure to an Eina_Inlist, which is far from optimal. I'd therefore like to propose that we add in eina_inlist.h a macro along the lines of
#define FIND_A_SENSBILE_NAME_FOR_THIS(ptr, type) ((type *) ((Eina_Inlist *) ptr - offsetof(type, __in_list))) Then, we could get a pointer to the containing structure, no matter where the Eina_Inlist is (note that I used __in_list as the member as we already have a macro '#define EINA_INLIST Eina_Inlist __in_list', but a member argument could be added just as well) Thoughts ? Regards, -- Albin Tonnerre
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