Can you copy a structure via pointer dereference in (Objective) C? -


according crashlytics, line causing trouble:

// copy preamble data _preamble = * (showmetahdrpreamble *) [data bytes];

_preamble showmetahdrpreamble struct. data not nil. suppose it's possible data may not long enough fill showmetahdrpreamble - looks condition isn't tested for.

but question syntax, not i've seen in c or objective c copying structs. i'd either copy using memcpy() or casting , copying individual structure members. valid way format data byte stream , copy structure?

any ideas on why line cause crash, or did answer that?

(i'm pretty sure on in c couldn't copy structures using '=', see ansi c k&r legal these days.)


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