方式一和方式二均能够实现基类智能指针指向子类,但建议采用方式1,通过std::make_shared的方式构造智能指针,然后进行转换; 5. map的安全查找办法 即map[key]这种写法,就是会创建元素(且不一定初始化),因此在业务逻辑是希望查找的时候,就老老实实用find,不然会有脏数据写入。 6. string 的指针构造 std::string ...
CPixel::ComputeMipMapSize 方法會決定配置 Mipmap 紋理所需的記憶體數量。 語法 ManagedCPlusPlus 複製 static UINT ComputeMipMapSize( UINT cpWidth, UINT cpHeight, UINT cLevels, D3DFORMAT Format ); 參數 cpWidth 以像素為單位指定Mipmap紋理的寬度。 cpHeight 以像素為單位指定Mipmap紋理的高度。 cLeve...
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# Plot the confusion matriximportseabornassnsdefplot(cm):""" Plot the confusion matrix. """sns.set(rc={"figure.figsize": (5,3.5)}) ax = sns.heatmap(cm, annot=True, fmt=".20g") ax.set_title("Confusion Matrix") ax.set_xlabel("Predicted label") ax.set_ylabel("True label")retur...
0.7 game dev 1221 herringbone Wang tile map generator stb_c_lexer.h 0.12 parsing 941 simplify writing parsers for C-like languages stb_divide.h 0.94 math 433 more useful 32-bit modulus e.g. "euclidean divide" stb_connected_comp... 0.96 misc 1049 incrementally compute reachability on grids ...
//compute the hash position. nPos = HashGetValue(pKey,nKeyLength,pTable->m_nLength); if(!pTable->m_ppHead[nPos]) { return;//the related node of the key is NOT exist, return. } //the first one is the right one. if(pTable->m_ppHead[nPos]->m_nKeyLength == nKeyLength &&...
java map 方法computeIfAbsent computeIfP java中map的put方法,HashMap解析put的过程首先,用代码运行下,来体会下:代码实现:@Testpublicvoidtest1(){//创建了一个HashMapMap<String,Object>map=newHashMap<>();//使用put方法保存数据map.put("age",12);map.
<<" nodes in fixed map");this->clear();std::lock_guard<std::mutex> csl( critZoneChangingMap);// Enter critical section (updating map)mrpt::poses::CPose3D curPose;if(x0) { curPose = mrpt::poses::CPose3D(x0->getMeanVal()); ...
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