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Dear Rob,

Thank you so much for your hint with Inline:C. I will try this at the next opportunity

I don't know why, but I solved my problem with the following:

_new(class,count, val_arr) char *class int count AV *val_arr PREINIT: EdjeMessageStringSet *message; int index; SV *tmp; char *string; STRLEN len; CODE: Newx(message,1,EdjeMessageStringSet); Renewc(message,count+2, char*,EdjeMessageStringSet); if (message == NULL) croak("Failed to allocate memory in _new function\n"); message->count = count+1; for (index = 0; index <= count; index++) { tmp = *av_fetch(val_arr,index,0); string = SvPVutf8(tmp,len); message->str[index] = savepvn(string,len); } RETVAL = message; OUTPUT: RETVAL

I have to allocate memory for the Edje_Message_String_Set struct and for the array of strings, because it is only at runtime visible, how many strings are in the array. In C this goes through malloc(sizeof(Edje_Message_String_Set) + count * sizeof(char*)). In Perl this works with the Renewc function. The only thing I don't understand is, why I had to reallocate count+1 items of char*. It should be count+1 :-S (because count starts at 1, and the index of the given Perl array starts at 0). (in a C example there is even malloced count-1 * sizeof(char*)...). But whatever, I am happy that it works now...

In reply to Re^2: Perl XS binding to a struct with an array of chars* by MaxPerl
in thread Perl XS binding to a struct with an array of chars* by MaxPerl

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