Re: [Xen-devel] [PATCH V8 3/7] libxl: add pvusb API

["Chun Yan Liu" <cyliu@xxxxxxxx>]

>>> On 11/11/2015 at 02:11 AM, in message
<22082.13115.276320.572627@xxxxxxxxxxxxxxxxxxxxxxxx>, Ian Jackson
<Ian.Jackson@xxxxxxxxxxxxx> wrote: 
> George Dunlap writes ("Re: [Xen-devel] [PATCH V8 3/7] libxl: add pvusb API"): 
> > On Tue, Nov 10, 2015 at 8:41 AM, Chun Yan Liu <cyliu@xxxxxxxx> wrote: 
> > > Which cast? Here, we want to get a uint_8 value, but buf is a string, 
> > > we need to do atoi. 
> >  
> > atoi() isn't a cast, it's a function call.  The cast is the (char *) bit. 
> >  
> > I think probably you could get away with declaring buf as (char *). 
> > &buf should be converted to void** automatically without any warnings, 
> > I think. 
>  
> No, char** won't be automatically converted to void**.  But void* will 
> be automatically converted to char*. 

Yes, that's right.

>  
> (Will read the rest of this thread later, probably tomorrow.) 
>  
> Ian. 
>  
>  



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