C++ (Cpp) Program::checkConsistency Examples

Example #1

int Reproduction::breed(System* system, Population* src, vector<Program>* newpop, int index)
{
	// Big complex mess
	// First select individuals
	vector<Program*> p = getSelections(1, src, index);

	Program* a = p[0];

	// Swap subtrees rooted at a and b to form new nodes
	newpop->push_back(Program(system));
	Program* dsta=&newpop->at(newpop->size()-1);
	a->copy(*dsta);
#ifdef DEBUG
	if (!a->checkConsistency())
		throw runtime_error("Resulting program from architecture altering operation is not consistent");
#endif
	return 1;
}

Example #2

int Crossover::breed(System* system, Population* src, vector<Program>* newpop, int index)
{
	// Big complex mess
	// First select individuals
	vector<Program*> prgms=getSelections(2, src, index);

	Program* a = prgms[0];
	Program* b = prgms[1];

	// Subtree selection
	int branch=rand()%(a->branch.size());
	int i,j;
	vector<int> strees=getSelectionTrees(branch, &prgms);
	i=strees[0];
	j=strees[1];

	if (i<0 || j<0)
		return 0;

	// Detect early on if crossover will be unsuccessful due to depth limits
	if (system->maxdepth>0)
	{
		// Only need to check the new branch to see if it exceeds the limit
		int deptha=b->branch[branch][j].parentOffset;
		int depthb=a->branch[branch][i].parentOffset;
		int parent;
		parent=i;
		while (parent>0)
		{
			parent+=a->branch[branch][parent].parentOffset;
			deptha++;
		}
		parent=j;
		while (parent>0)
		{
			parent+=b->branch[branch][parent].parentOffset;
			depthb++;
		}
		if (deptha>system->maxdepth || depthb>system->maxdepth)
			return 0;
	}

	if (system->maxnodes>0)
	{
		// Check if either program will have too many nodes
		if (a->branch[branch][0].nodes-a->branch[branch][i].nodes+b->branch[branch][j].nodes>system->maxnodes)
			return 0;
		if (b->branch[branch][0].nodes-b->branch[branch][j].nodes+a->branch[branch][i].nodes>system->maxnodes)
			return 0;
	}

	// Swap subtrees rooted at a and b to form new nodes
	newpop->push_back(Program(system));
	newpop->push_back(Program(system));
	Program* dsta=&newpop->at(newpop->size()-2);
	Program* dstb=&newpop->at(newpop->size()-1);
	a->copy(*dsta);
	b->copy(*dstb);
	copyTree(TreeNodeIter(&dsta->branch[branch], i), TreeNodeIter(&b->branch[branch], j));
	copyTree(TreeNodeIter(&dstb->branch[branch], j), TreeNodeIter(&a->branch[branch], i));
#ifdef DEBUG
	if (!a->checkConsistency())
		throw runtime_error("Resulting program from architecture altering operation is not consistent");
	if (!b->checkConsistency())
		throw runtime_error("Resulting program from architecture altering operation is not consistent");

#endif
	return 2;
}

Example #3

int GrowTree::breed(System* system, Population* src, vector<Program>* newpop, int index)
{
	Program* newp;
	newpop->push_back(Program(system));
	newp=&newpop->back();

	newp->functions.assign(system->adf.begin(), system->adf.end());

	newp->branch.push_back(vector<TreeNode>());

	// Push the main program branch on
	growtree(system, system->returntype, TreeNodeIter(&newp->branch[0], 0), (maxdepth<=mindepth?0:(rand()%(maxdepth-mindepth+1)))+mindepth);

	// Need to add ADF branches
	for (int i=0;i<system->adf.size();++i)
		newp->branch.push_back(vector<TreeNode>());

	ADF* curfunc;
	for (int i=system->adf.size()-1;i>=0;--i)
	{
		curfunc = (ADF*)(system->adf[i]);

		// Remove current function from list
		if (system->recursiveDepth<=0)
		{
#ifdef DEBUG
			if (system->functions[curfunc->arg_type[0]].back()!=curfunc)
				throw runtime_error("Function being popped off of system does not match last adf entry");
#endif
			system->functions[curfunc->arg_type[0]].pop_back();
		}

		// Push function arguments
		for (int j=1;j<curfunc->arg_type.size();++j)
			system->functions[curfunc->arg_type[j]].push_back(curfunc->args[j-1]);

		// Generate tree
		growtree(system, curfunc->arg_type[0], TreeNodeIter(&newp->branch[i+1], 0), (maxdepth<=mindepth?0:(rand()%(maxdepth-mindepth+1)))+mindepth);

		// Pop function arguments
		for (int j=curfunc->arg_type.size()-1;j>=1;--j)
		{
			system->functions[curfunc->arg_type[j]].pop_back();
		}
	}

	if (system->recursiveDepth<=0)
	{
		for (int i=0;i<system->adf.size();++i)
		{
			curfunc = (ADF*)system->adf[i];
			system->functions[curfunc->arg_type[0]].push_back(curfunc);
		}
	}

#ifdef DEBUG
	if (!newp->checkConsistency())
	{
		throw runtime_error("Invalid produced program");
	}
#endif

	return 1;
}