What is the meaning of prepended double colon “::”
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: IfoundthislineofacodeinaclasswhichIhavetomodify: ::Configuration*tmpCo=m_configurationDB;//pointertocurrentdb andId......
vector vs. list in STL
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: InoticedinEffectiveSTLthat vectoristhetypeofsequencethat shouldbeusedbydefault. What\'sdoesitmean?Itseemsthati......
Does the 'mutable' keyword have any purpos
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: AwhileagoIcameacrosssomecodethatmarkedamembervariableofaclasswiththemutablekeyword.AsfarasIcanseeitsimplyallows......
C state-machine design
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: IamcraftingasmallprojectinmixedCandC++.Iambuildingonesmall-ishstate-machineattheheartofoneofmyworkerthread. Iwas......
Why don't I get a segmentation fault when I wr
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: whyisthisnotgivingerrorwhenIcompile? #include<iostream> usingnamespacestd; intmain() { int*a=newint[2]; //inta[2]......
Why copy constructor is not called in this case?
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: Hereisthelittlecodesnippet: classA { public: A(intvalue):value_(value) { cout<<\"Regularconstructor\"<<endl; ......
Calculating pow(a,b) mod n
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: IwanttocalculateabmodnforuseinRSAdecryption.Mycode(below)returnsincorrectanswers.Whatiswrongwithit? unsignedlongint......
strptime() equivalent on Windows?
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: Isthereagoodequivalentimplementationofstrptime()availableforWindows?Unfortunately,thisPOSIXfunctiondoesnotappeartobeavai......
Returning a reference to a local or temporary vari
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: Thisquestionalreadyhasananswerhere: Canalocalvariable'smemorybeaccessedoutsideitsscope? ......
Why doesn't left bit-shift, “<<”, for 32
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: WhenIwritethefollowingprogramandusetheGNUC++compiler,theoutputis1whichIthinkisduetotherotationoperationperformedby......
initializer_list and move semantics
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: AmIallowedtomoveelementsoutofastd::initializer_list<T>? #include<initializer_list> #include<utility> template<typenameT>...
How to track down a “double free or corruption” er
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: WhenIrunmy(C++)programitcrasheswiththiserror. *glibcdetected*./load:doublefreeorcorruption(!prev): 0x0000000000c6ed5......
When should I make explicit use of the `this` poin
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: WhenshouldIexplicitlywritethis->memberinamethodof aclass? 回答1: Usually,youdonothaveto,this->isimplied. Sometimes,t......
What should go into an .h file?
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: Whendividingyourcodeupintomultiplefilesjustwhatexactlyshouldgointoan.hfileandwhatshouldgointoa.cppfile? 回答1: H......
C++ “virtual” keyword for functions in derived cla
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: Withthestructdefinitiongivenbelow... structA{ virtualvoidhello()=0; }; Approach#1: structB:publicA{ virtualvoid......
What is the closest thing windows has to fork()?
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: Iguessthequestionsaysitall. Iwanttoforkonwindows.WhatisthemostsimilaroperationandhowdoIuseit. 回答1: Cygwinhasf......
Measuring execution time of a function 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: IwanttofindouthowmuchtimeacertainfunctiontakesinmyC++programtoexecuteonLinux.Afterwards,Iwanttomakeaspeedcompariso......
How do I call ::std::make_shared on a class with o
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: Ihavethiscodethatdoesn\'twork,butIthinktheintentisclear: testmakeshared.cpp #include<memory> classA{ public: static::......
C++ display stack trace on exception
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: Iwanttohaveawaytoreportthestacktracetotheuserifanexceptionisthrown.Whatisthebestwaytodothis?Doesittakehugeamou......
Is there a difference between foo(void) and foo()
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: Considerthesetwofunctiondefinitions: voidfoo(){} voidfoo(void){} Isthereanydifferencebetweenthesetwo?Ifnot,whyisthe......
{var%20f='http://v.t.sina.com.cn/share/share.php?appkey=1515056452',u=z||d.location,p=['&url=',e(u),'&title=',e(t||d.title),'&source=',e(r),'&sourceUrl=',e(l),'&content=',c||'gb2312','&pic=',e(p||'')].join('');function%20a(){if(!window.open([f,p].join(''),'mb',['toolbar=0,status=0,resizable=1,width=440,height=430,left=',(s.width-440)/2,',top=',(s.height-430)/2].join('')))u.href=[f,p].join('');};if(/Firefox/.test(navigator.userAgent))setTimeout(a,0);else%20a();})(screen,document,encodeURIComponent,'','','https://www.manongdao.com//static/images/defaulticon.jpg', '《C++》','https://www.manongdao.com/cat-48.html','页面编码gb2312|utf-8默认gb2312'));){kind=link}