Re: [xmlvm-users] Network Byte Order

[Troy G. <tro...@gm...>]

I'll write a test to validate and validate.

On a related but separate note, has this project considered (if it doesn't
already have them) unit tests to validate behavior on some of these classes?
 I could see it becoming more important especially on classes that we're
implementing by hand.

Thanks again for all your help!

On Tue, Nov 30, 2010 at 12:06 PM, Arno Puder <ar...@pu...> wrote:

>
> interesting point. Can you please verify that this works now? If so, I
> will commit the patch.
>
> Arno
>
>
> On 11/30/10 7:45 AM, Troy Gaines wrote:
> > I have a char array in Objective C with this: char[] {0, 37, 0, 0}.
> >   This is later passed to the readInt__ method in
>  java_io_DataInputStream.
> >
> > This results in 9472 through the Simulator.  On the Java side, I wrote a
> > test and this results in 2424832.  It appears the byte order is being
> > reversed since  Java reads and writes everything in byte order.  It
> > seems like the following code needs to be reversed to match Java.
> >
> > So instead of p being p[0] = 0, p[1] = 25, p[2] = 0, p[3] = 0 it would
> > be p[0] = 0, p[1] = 0, p[2] = 25, p[3] = 0.  This would correctly
> > convert on the iPhone.  I posted what the new method could look like
> > although I didn't test it.
> >
> > *original*
> >
> > - (int) readInt__
> > {
> > int d;
> > unsigned char* p = (unsigned char*) &d;
> > for (int i = 0; i < 4; i++) {
> > int v = [target read__];
> > *p++ = (unsigned char) v;
> > }
> >
> > return d;
> > }
> >
> > to
> >
> > *new*
> >
> > - (int) readInt__
> > {
> > int d;
> > unsigned char* p = (unsigned char*) &d;
> > for (int i = 4; i > 0; i--) {
> > int v = [target read__];
> > p[i-1] = (unsigned char) v;
> > }
> >
> > return d;
> > }
> >
> > *
> > *
> > *
> > *
> >
> >
> >
> >
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