Re: looks like Intel vs. PowerPC difference

FROM : Andrei Tchijov
DATE : Thu Aug 03 20:22:54 2006

Very true.  It just that I got bitten by it (I did not assigned 
initial values to in/out stream). Nowhere in the documentation it 
mentions that you have to nil initial values in order to be able to 
check success/failure.  It looks little bit odd to me.  Why this 
method does not return some sort of status is quite beyond  me.

To be fair, documentation does not promise that in/out stream 
variables will be nil-ed on failure.

On Aug 3, 2006, at 2:04 PM, Sherm Pendley wrote:

> On Aug 3, 2006, at 1:37 PM, Andrei Tchijov wrote:
>

>> It looks like
>>
>> +[ NSStream (void)getStreamsToHost:(NSHost *)host port:(int)port 
>> inputStream:(NSInputStream **)inputStream outputStream:
>> (NSOutputStream **)outputStream ]
>>
>> works slightly different on Intel, compare to PowerPC.  On 
>> PowerPC, when this method fails, it will set inputStream/
>> outputStream to nil.  It looks like on Intel, in case of failure, 
>> it leaves inputStream/outputStream untouched.

>
> That sort of internal detail shouldn't make a difference in how you 
> use this method.
>
>     NSInputStream *inStream = nil;
>     NSOutputStream *outStream = nil;
>
>     [NSStream getStreamsToHost:someHost port:somePort 
> inputStream:&inStream outputStream:&outStream];
>
> What effective difference can it possibly make whether 
> +getStreams... method explicitly set either inStream or outStream 
> to nil, or simply left the existing nil value alone? Either way the 
> result will be the same - nil on failure.
>
> sherm--
>
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>