On Jun 8, 2011, at 11:56 AM, Kevin Jones wrote: > Comments and explanations inline below. > > --- On Wed, 6/8/11, Julian Leviston <jul...@leviston.net> wrote: > > Also, what is this? > > struct vtable *_vt[0]; > > Is that creating a pointer to a struct array which has zero elements in it? I > don't follow what that's for? > > This is an idiom in C for variable-length arrays when at the end of a struct > definition. >
Thanks Kevin, Can you elaborate a bit more on this idiom? Is it purely intention-revealing code, to signify that it's a pointer to an array of structs instead of a single struct? In other words, does it compile to the same thing as "struct vtable *_vt;" ? Cheers, Josh
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