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C++ CHeap::updateheap_unsafe方法代码示例

本文整理汇总了C++中CHeap::updateheap_unsafe方法的典型用法代码示例。如果您正苦于以下问题:C++ CHeap::updateheap_unsafe方法的具体用法?C++ CHeap::updateheap_unsafe怎么用?C++ CHeap::updateheap_unsafe使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在CHeap的用法示例。


在下文中一共展示了CHeap::updateheap_unsafe方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: Search

bool anaPlanner::Search(anaSearchStateSpace_t* pSearchStateSpace, vector<int>& pathIds, int & PathCost,
                        bool bFirstSolution, bool bOptimalSolution, double MaxNumofSecs)
{
    CKey key;
    TimeStarted = clock();
    searchexpands = 0;

#if DEBUG
    fprintf(fDeb, "new search call (call number=%d)\n", pSearchStateSpace->callnumber);
#endif

    if (pSearchStateSpace->bReinitializeSearchStateSpace == true) {
        //re-initialize state space 
        ReInitializeSearchStateSpace(pSearchStateSpace);
    }

    if (bOptimalSolution) {
        pSearchStateSpace->eps = 1;
        MaxNumofSecs = INFINITECOST;
    }
    else if (bFirstSolution) {
        MaxNumofSecs = INFINITECOST;
    }

    //ensure heuristics are up-to-date
    environment_->EnsureHeuristicsUpdated((bforwardsearch == true));

    //the main loop of ana*
    int prevexpands = 0;
    clock_t loop_time;

    // CHANGE MADE TO WHILE LOOP to account for open.empty() == FALSE
    while (!pSearchStateSpace->heap->emptyheap() && pSearchStateSpace->eps_satisfied > ana_FINAL_EPS &&
           (clock() - TimeStarted) < MaxNumofSecs * (double)CLOCKS_PER_SEC)
    {
        loop_time = clock();
        //decrease eps for all subsequent iterations
        /*if(fabs(pSearchStateSpace->eps_satisfied - pSearchStateSpace->eps) < ERR_EPS && !bFirstSolution)
         {
         pSearchStateSpace->eps = pSearchStateSpace->eps - ana_DECREASE_EPS;
         if(pSearchStateSpace->eps < ana_FINAL_EPS)
         pSearchStateSpace->eps = ana_FINAL_EPS;

         //the priorities need to be updated
         pSearchStateSpace->bReevaluatefvals = true;

         //it will be a new search
         pSearchStateSpace->bNewSearchIteration = true;

         //build a new open list by merging it with incons one
         BuildNewOPENList(pSearchStateSpace);

         }*/

        pSearchStateSpace->searchiteration++;
        pSearchStateSpace->bNewSearchIteration = false;

        //re-compute f-values if necessary and reorder the heap
        //if(pSearchStateSpace->bReevaluatefvals)
        //	Reevaluatefvals(pSearchStateSpace);

        //improve or compute path
        int retVal = ImprovePath(pSearchStateSpace, MaxNumofSecs);
        anaState* state;
        CKey key;
        CHeap* open = pSearchStateSpace->heap;
        //printf("states expanded: %d\t states considered: %d\t time elapsed: %f\n",searchexpands - prevexpands, pSearchStateSpace->heap->currentsize, double(clock() - TimeStarted)/CLOCKS_PER_SEC);

        double epsprime = 1.0;
        for (int j = 1; j <= open->currentsize;) {
            state = (anaState*)open->heap[j].heapstate;
            double temp_eps = (double)((pSearchStateSpace->G * 1.0) / (double)(state->g + state->h));
            if (temp_eps > epsprime) {
                epsprime = temp_eps;
            }
            double e_val = get_e_value(pSearchStateSpace, state->MDPstate->StateID);
            if (e_val <= 1.0) {

                open->deleteheap_unsafe(state);

            }
            else {
                key.key[0] = (long)-e_val;

                open->updateheap_unsafe(state, key);
                ++j;
            }
            pSearchStateSpace->eps_satisfied = epsprime;
        }
        open->makeheap();

        //print the solution cost and eps bound
        if (retVal == 1) {
            //printf("suboptimality=%f expands=%d g(searchgoal)=%d loop_time=%.3f time_elapsed=%.3f memoryCounter=%d\n", pSearchStateSpace->eps_satisfied, searchexpands - prevexpands, ((anaState*)pSearchStateSpace->searchgoalstate->PlannerSpecificData)->g,double(clock()-loop_time)/CLOCKS_PER_SEC, double(clock() - TimeStarted)/CLOCKS_PER_SEC, MaxMemoryCounter);

            printf("suboptimality=%f g(searchgoal)=%d time_elapsed=%.3f memoryCounter=%d\n",
                   pSearchStateSpace->eps_satisfied,
                   ((anaState*)pSearchStateSpace->searchgoalstate->PlannerSpecificData)->g, double(clock()
                       - TimeStarted) / CLOCKS_PER_SEC, MaxMemoryCounter);

//.........这里部分代码省略.........
开发者ID:AGV-IIT-KGP,项目名称:eklavya-2015,代码行数:101,代码来源:ANAplanner.cpp


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