virtual-functions
Why not have all the functions as virtual in C++?
I know that virtual functions have an overhead of dereferencing to call a method. But I guess with modern architectural speed it is almost negligible.[详细]
2023-03-17 16:58 分类:问答C++ virtual functions.Problem with vtable [duplicate]
This question already has answers here: Closed 11 years ago. Possible Duplicate: GCC C++ Linker errors: Undefined reference to 'vtable for XXX', Undefined reference to 'ClassName::[详细]
2023-03-15 22:09 分类:问答SIGABRT when trying to throw an exception
I have a very strange problem, which took already several hours of my attention: With giving a wrong input to the software I am working on, I can produce an exception (which is of course intended). Th[详细]
2023-03-15 14:29 分类:问答Does virtual inheritance and virtual function use the same vtable?
There is one little related question. But the topic is entirely different. Now, one co开发者_如何学JAVAncept is about the function resolution and another is about class resolution ? I am wondering th[详细]
2023-03-15 05:36 分类:问答Reverse Engineering virtual functions code in C++
I just compiled the following on VS2010(with optimization turned off). class Shape { public: int x,y; Shape() {[详细]
2023-03-15 03:36 分类:问答C++ destructors as virtual functions?
I just read recently that its a good practice to implement C++ destructors as virtual functions[1]. Why is this so? Is this a general good practice? If not, in what conditions/case开发者_C百科s is a d[详细]
2023-03-14 08:30 分类:问答What does the virtual keyword mean when overriding a method?
What does the keyword virtual do when overriding a method? I\'m not using it and everything works fine.[详细]
2023-03-14 07:24 分类:问答C++ calls the wrong function
I have this weird bug, where C++ calls the wrong function: So this bit of code get called: class FmeGrid[详细]
2023-03-13 00:41 分类:问答Force derived class to override at least one virtual function
Imagine this simple base class: struct simple_http_service { virtual reply http_get(…); virtual reply http_post(…);[详细]
2023-03-10 14:57 分类:问答Why virtual function can't be unimplemented when allocated with 'new'?
struct A { virtual void foo();// unused and unimplemented virtual void bar () {} }; int main () { A obj;// ok[详细]
2023-03-10 10:57 分类:问答