Re: [xmlvm-users] Network Byte Order

[Arno P. <ar...@pu...>]

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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