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|    comp.lang.c    |    Meh, in C you gotta define EVERYTHING    |    243,242 messages    |
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|    Message 241,247 of 243,242    |
|    Bonita Montero to All    |
|    Re: Nice way of allocating flexible stru    |
|    08 Oct 25 11:23:13    |
   
   From: Bonita.Montero@gmail.com   
      
   Am 08.10.2025 um 11:09 schrieb Bonita Montero:   
   > Am 08.10.2025 um 08:35 schrieb Kaz Kylheku:   
   >> Jonas Lund of https://whizzter.woorlic.org/ mentioned this   
   >> trick in a HackerNews comment:   
   >>   
   >> Given:   
   >>   
   >> struct S {   
   >> // ...   
   >> T A[];   
   >> };   
   >>   
   >> Don't do this:   
   >>   
   >> malloc(offsetof(S, A) + n * sizeof (T));   
   >>   
   >> But rather this:   
   >>   
   >> malloc(offsetof(S, A[n]));   
   >>   
   >> It's easy to forget that the second argument of offsetof is a   
   >> designator, not simply a member name.   
   >>   
   >   
   > In a real language:   
   >   
   > #include
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