Re: lms200 segfault on GetRange() - player 2.1.1

> On Thursday 10 Jul 2008, Frederic Siepmann wrote:
>> Hello Players...
>>
>> I am having some trouble with my laser under player 2.1.1. I am creating
>> a LaserProxy like this:
>>
>> PlayerClient client(DEFAULT_HOST);
>> LaserProxy laserProxy;
>> ...
>> Position2dProxy position(&client,0);
>> ...
>> laserProxy = new LaserProxy(&client, 0);
>>
>> but when I try to get data in a loop with:
>>
>> laserProxy->GetRange(i);
>>
>> I will get a segfault with the following backtrace:
>>
>> #0  0x08058ec3 in PlayerCc::ClientProxy::GetVar<double> ()
>> #1  0x08058f08 in PlayerCc::LaserProxy::GetRange ()
>> #2  0x080547a6 in maincalc ()
>> #3  0x08056e88 in main ()
>>
>> BUT playerv does display laserdata just fine.
>> What am I doing wrong ?!
>
> Before doing a GetRange() for the first time (e.g. just after creating the
> laser proxy) you have to Read() until you get a number of ray that is not 0.  
> I don't know if this is a bug or a feature, but that solves it...
>
> Fred
>
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