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c++ - g++ -fdump-class-hierarchy 的输出中的第一个 (int (*)(...))0 vtable 条目是什么？

对于此代码:classB1{public:virtualvoidf1(){}};classD:publicB1{public:voidf1(){}};intmain(){B1*b1=newB1();D*d=newD();return0;}编译后，我用g++-fdump-class-hierarchy得到的vtable是:VtableforB1B1::_ZTV2B1:3uentries0(int(*)(...))08(int(*)(...))(&_ZTI2B1)16B1::f1VtableforDD::_ZTV1D:3uentries0(int(*)(...))08(int(*)(...
ampfdump-class-hierarchycodevtablestrongc++gccvirtual-functions

c++ - g++ -fdump-class-hierarchy 的输出中的第一个 (int (*)(...))0 vtable 条目是什么？

对于此代码:classB1{public:virtualvoidf1(){}};classD:publicB1{public:voidf1(){}};intmain(){B1*b1=newB1();D*d=newD();return0;}编译后，我用g++-fdump-class-hierarchy得到的vtable是:VtableforB1B1::_ZTV2B1:3uentries0(int(*)(...))08(int(*)(...))(&_ZTI2B1)16B1::f1VtableforDD::_ZTV1D:3uentries0(int(*)(...))08(int(*)(...
ampfdump-class-hierarchycodevtablestrongc++gccvirtual-functions

c++ - Qt 链接器错误 : "undefined reference to vtable"

这个问题在这里已经有了答案:Undefinedreferencetovtable.TryingtocompileaQtproject(21个回答)关闭5年前。这是我的标题:#ifndefBARELYSOCKET_H#defineBARELYSOCKET_H#include//!TheFirstDrawoftheBarelySocket!classBarelySocket:publicQObject{Q_OBJECTpublic:BarelySocket();publicslots:voidsendMessage(MessageaMessage);signals:voidreciveMe
ampundefinedsectionBarelySocketcodec++qtlinker-errorsvtableqobject

c++ - Qt 链接器错误 : "undefined reference to vtable"

这个问题在这里已经有了答案:Undefinedreferencetovtable.TryingtocompileaQtproject(21个回答)关闭5年前。这是我的标题:#ifndefBARELYSOCKET_H#defineBARELYSOCKET_H#include//!TheFirstDrawoftheBarelySocket!classBarelySocket:publicQObject{Q_OBJECTpublic:BarelySocket();publicslots:voidsendMessage(MessageaMessage);signals:voidreciveMe
ampundefinedsectionBarelySocketcodec++qtlinker-errorsvtableqobject
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