That gives this error (which I've gotten with just about everything I try):
cannot use &p.mach_name (type *[25]_Ctype_char) as type *_Ctype_char in
argument to _Cfunc_GoString
It seems to be the fixed length of the char[] that gives cgo a problem.
On Thursday, April 30, 2020 at 1:46:34 PM UTC-6, Jan Mercl wrote:
>
> On Thu, Apr 30, 2020 at 8:17 PM Dean Schulze <dean.w...@gmail.com
> <javascript:>> wrote:
> >
> > I must be missing something pretty simple, but I have a C struct like
> this:
> >
> > typedef struct line
> > {
> > char hostname[HOSTNAME_MAX];
> > char ip[IP_MAX];
> > ...
> > }
> >
> > When I try to do the simple thing
> >
> > C.GoString(p.hostname)
>
> An array of a fixed size within a C struct is a value (the same as in
> Go), but C.GoString expects a pointer to a C.char. Try
> `C.GoString(&p.hostname)`.
>
> Not tested. Note that if hostname is not properly zero terminated,
> your code will crash or misbehave.
>
> (Automatic array decay applies to C code, but not in Go.)
>
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