接近最后一步，但仍有一些奇怪的错误......bash-3.2$makeg++-Wall-c-gMyworld.ccg++-Wall-gsolvePlanningProblem.oPosition.oAStarNode.oPRM.oPRMNode.oWorld.oSingleCircleWorld.oMyworld.oRECTANGLE.oCIRCLE.o-osolvePlanningProblemUndefinedsymbols:"vtableforObstacle",referencedfrom:Obstacle::Obstacle()inMyworld.o"typeinfofor

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(*)(...

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(*)(...

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

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