我对下面的代码感到困惑:classMyExceptionextendsException{}classAnotherExceptionextendsMyException{}classFoo{publicfunctionsomething(){print"throwingAnotherException\n";thrownewAnotherException();}publicfunctionsomethingElse(){print"throwingMyException\n";thrownewMyException();}}$a=newFoo();try{try{$a->somet
看看这段代码:structData{};structInit{Data*m_data;Init():m_data(newData){}~Init(){deletem_data;}};classObject{private:constintm_initType;Data*m_data;public:Object(constInit&init):m_initType(0),m_data(init.m_data){}Object(Init&&init):m_initType(1),m_data(init.m_data){init.m_data=nullptr;}~Object(){if(m_
在使用可变参数模板时,跟随thisSOquestion(注意:不是必须去那里回答这个问题),对于以下模板重载函数,我遇到了clang(3.8)和g++(6.1)的不同行为:templatestructpack{};templateconstexprboolstarts_with(a,b){returnfalse;}templateclassPACK_A,templateclassPACK_B,typename...Ts1,typename...Ts2>constexprboolstarts_with(PACK_A,PACK_B){returntrue;}intmain(){std::c
我正在使用LDAP和Java搜索。这是我的LDIF导出的简单组织version:1dn:dc=example,dc=comobjectClass:organizationobjectClass:dcObjectobjectClass:topdc:exampleo:MyOrganizationdescription:TestDescriptiondn:ou=people,dc=example,dc=comobjectClass:organizationalUnitobjectClass:topou:peopledescription:Allusersindemocompanydn:cn=
MongoClientOptions.Builderoptions=MongoClientOptions.builder();options.socketKeepAlive(true).maxWaitTime(100).connectTimeout(100);MongoClientmongo=newMongoClient(host,options.build());我收到这个是因为池已关闭,但我不希望池关闭,因为我的应用程序很大。我希望池持续到应用程序结束或至少一个特定的类。任何帮助将不胜感激。Closedconnection[connectionId{localValue:124,s