Purpose of Unions in C and C++
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: Ihaveusedunionsearliercomfortably;todayIwasalarmedwhenIreadthispostandcametoknowthatthiscode unionARGB { uint32_t......
Why use iterators instead of array indices?
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: Takethefollowingtwolinesofcode: for(inti=0;i<some_vector.size();i++) { //dostuff } Andthis: for(some_iterator=some......
Polymorphism in c++
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: AFAIK: C++providesthreedifferenttypesofpolymorphism. Virtualfunctions Functionnameoverloading Operatoroverloading Inaddition......
When should you use 'friend' in C++?
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: IhavebeenreadingthroughtheC++FAQandwascuriousaboutthefrienddeclaration.Ipersonallyhaveneverusedit,howeverIamintereste......
Simple example of threading in C++ [closed]
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: Cansomeonepostasimpleexampleofstartingtwo(ObjectOriented)threadsinC++. I\'mlookingforactualC++threadobjectsthatIcane......
Programmatically find the number of cores on a mac
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: IsthereawaytodeterminehowmanycoresamachinehasfromC/C++inaplatform-independentway?Ifnosuchthingexists,whataboutdeterm......
How to implement classic sorting algorithms in mod
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: Thestd::sortalgorithm(anditscousinsstd::partial_sortandstd::nth_element)fromtheC++StandardLibraryisinmostimplementationsac......
Does “int size = 10;” yield a constant expression?
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: Thefollowingcodecompilesundergcc4.8andClang3.2: intmain() { intsize=10; intarr[size]; } 8.3.4/1oftheC++Standardsays......
Order of evaluation of arguments using std::cout
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: HiallIstumbleduponthispieceofcodetodayandIamconfusedastowhatexactlyhappensandmoreparticularinwhatorder: Code: #......
AVX2 what is the most efficient way to pack left b
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: Ifyouhaveaninputarray,andanoutputarray,butyouonlywanttowritethoseelementswhichpassacertaincondition,whatwouldbethe......
Why copying stringstream is not allowed?
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: intmain() { std::stringstreams1(\"Thisismystring.\"); std::stringstreams2=s1;//error,copyingnotallowed } Icouldn\'tfin......
How can I pass a class member function as a callba
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: I\'musinganAPIthatrequiresmetopassafunctionpointerasacallback.I\'mtryingtousethisAPIfrommyclassbutI\'mgettingcompi......
Get path of executable
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: IknowthisquestionhasbeenaskedbeforebutIstillhaven\'tseenasatisfactoryanswer,oradefinitive\"no,thiscannotbedone\",soI......
Double Negation in C++ code
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: Ijustcameontoaprojectwithaprettyhugecodebase. I\'mmostlydealingwithC++andalotofthecodetheywriteusesdoublenegation......
Why can I not push_back a unique_ptr into a vector
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: Whatiswrongwiththisprogram? #include<memory> #include<vector> intmain() { std::vector<std::unique_ptr<int>>vec; intx(1...
Is it good practice to NULL a pointer after deleti
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: I\'llstartoutbysaying,usesmartpointersandyou\'llneverhavetoworryaboutthis. Whataretheproblemswiththefollowingcode? Fo......
Is the sizeof(some pointer) always equal to four?
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: Forexample: sizeof(char*)returns4.Asdoesint*,longlong*,everythingthatI\'vetried.Arethereanyexceptionstothis? 回答1: T......
Inline functions vs Preprocessor macros
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: Howdoesaninlinefunctiondifferfromapreprocessormacro? 回答1: Preprocessormacrosarejustsubstitutionpatternsappliedtoyourc......
What is memory fragmentation?
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: I\'veheardtheterm\"memoryfragmentation\"usedafewtimesinthecontextofC++dynamicmemoryallocation.I\'vefoundsomequestionsa......
Difference of keywords 'typename' and '
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: FortemplatesIhaveseenbothdeclarations: template<typenameT> template<classT> What\'sthedifference? Andwhatexactlydoth......
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