Re: SWIG: Bug with 'C' arrays of zero size ?

As far as I know, in C data[] is not defining a 0-sized array but a pointer equivalent to *data with a hint for the reader that the pointer will be used for an array.
Considering this, SWIG behavior seems correct.

Arnaud

> -----Original Message-----
> From: Alberto Luaces <[email protected]>
> Sent: Saturday, June 13, 2020 10:31
> To: [email protected]
> Subject: Re: [Swig-user] SWIG: Bug with 'C' arrays of zero size ?
> 
> On Fri, Jun 12, 2020, at 10:37, Terry Barnaby wrote:
> > Hi,
> >
> > If you have a data structure like the following all is well:
> >
> > struct DataBlock {
> >      Header    header;
> >      char        data[4];    ///< The packet data };
> >
> > However if you have a data structure that has a zero length array like
> > the following, SWIG considers the "char data[]" as a pointed to data
> > and tries to delete[] and allocate memory for it.
> >
> > struct DataBlock {
> >     Header    header;
> >      char        data[];    ///< The packet data };
> >
> > I think this is a bug ?
> 
> Are you using C++?  It seems that zero-sized arrays are not allowed:
> 
> https://stackoverflow.com/questions/6180012/array-with-size-0#6180200
> 
> 
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