[help] isAlive() crashing

[blukkie]

I'm trying to do a few checks with a std::list, but it's crashy at the moment and I don't know why.

There is this sequence where Units from a wave of mobs get spawned, when they get spawned they are inserted in the std::list like this:

for (int i = 0; i < 3; ++i)
{
   wave_spawn = m_creature->SummonCreature(wave_one[i], x[i], y[i], z[i], 0.0f, TEMPSUMMON_TIMED_DESPAWN_OUT_OF_COMBAT, 60000);
   l_wave.push_back(wave_spawn);
}

The same script will then check if mobs in this wave are dead. If so, it will increase Count. When Count reaches a specific number it will clear the list in order for the next wave of mobs to enter the list.

{
   uint8 count = 0;
   for(std::list<Unit*>::iterator iter = l_wave.begin(); iter != l_wave.end(); ++iter)
   {
       if (!(*iter))
           continue;

       m_spawn = Unit::GetUnit((*m_creature), (*iter)->GetGUID());

       if (!m_spawn)
           continue;

       if(!m_spawn->isAlive())
           count++;
   }

   if (count == 3 && wave_timer > 15000)
   {
       l_wave.clear();
       wave_timer = 15000;
   }
}break;

The thing is though, everytime I kill a mob in one of these waves, the server crashs. The crashlog redirects me to the 'isAlive()' part, and I can't figure out WHY it is crashing it, cause afaik I did it in a safe way, checking if the iteration exists before using it.

Anyone that can enlighten me what I'm doing wrong?

[Schmoozerd]

* SD2 related,

* Don't use pointers

* assign to list in JustSummoned

* count killed in SummonedCreatureJustDied