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c++ Programming Glossary: vtablehttp://stackoverflow.com/questions/1742848/why-exactly-do-i-need-an-explicit-upcast-when-implementing-queryinterface-in-a pointer is always the same for all classes because the vtable is just extended for the derived classes . However for multiple.. that with multiple inheritance you can't just extend the vtable you need multiple vtables depending on which branch you're talking.. you can't just extend the vtable you need multiple vtables depending on which branch you're talking about. So you need..
Why pure virtual function is initialized by 0? http://stackoverflow.com/questions/2156634/why-pure-virtual-function-is-initialized-by-0 to 0. What I understand is that this is to initialize the vtable entry for this function to NULL and any other value here results.. He also states explicitly that this need not set the vtable entry to NULL and that doing so is not the best way of implementing..
Can a member function template be virtual? http://stackoverflow.com/questions/2354210/can-a-member-function-template-be-virtual virtual function Q.2. What's its signature Q.3. How many vtable entries do you reserve Q.4. How would you distinguish between..
What are Aggregates and PODs and how/why are they special? http://stackoverflow.com/questions/4178175/what-are-aggregates-and-pods-and-how-why-are-they-special have on most implementations a pointer to the so called vtable of the class which is set in the constructor so brace initialization..
http://stackoverflow.com/questions/5450159/type-erasure-techniques e.g. are just semantic sugar for struct Class struct vtable void dtor Class void func Class double vtbl iow function pointers...
Accessing class members on a NULL pointer http://stackoverflow.com/questions/669742/accessing-class-members-on-a-null-pointer 0 I know virtual method call crashes because it requires a vtable lookup and can work only with valid objects. I have the following.. frequently implemented by giving the object a pointer to a vtable a list of function pointers and the caller just knows it's supposed..
Using v-table thunks to chain procedure calls http://stackoverflow.com/questions/1090755/using-v-table-thunks-to-chain-procedure-calls calls I was reading some articles on net regarding Vtable thunks and I read somewhere that thunks can be used to hook..
Object layout in case of virtual functions and multiple inheritance http://stackoverflow.com/questions/1321062/object-layout-in-case-of-virtual-functions-and-multiple-inheritance for the B subobject and 4 bytes for its member int c . Vtable for C C _ZTV1C 6u entries 0 int ... 0 4 int ... & _ZTI1C 8 A.. C public virtual A public virtual B the layout changes to Vtable for C C _ZTV1C 12u entries 0 16u 4 8u 8 int ... 0 12 int .....
Are there cases where downcasting an actual Base to a Derived would be defined? http://stackoverflow.com/questions/20263888/are-there-cases-where-downcasting-an-actual-base-to-a-derived-would-be-defined be at least the problems of inconsistent values in the Vtable and b containing garbage values. So it makes sense the standard..
how c++ implements the polymorphism internally? http://stackoverflow.com/questions/2171081/how-c-implements-the-polymorphism-internally i know that c implements the polymorphism by using the Vtable which is array of pointers each pointer points to the virtual.. what would be the sequence of calls. What is the role of Vtable and how it works please elaborate. c oop share improve this..
How are vtables implemented in c++ and c#? http://stackoverflow.com/questions/3634660/how-are-vtables-implemented-in-c-and-c intent which is later executed by the CLR where all Vtable handling etc. is taken care of. For some detail on how the CLR..
http://stackoverflow.com/questions/4904762/c-why-is-new-needed To see the virtual table run g fdump class hierarchy Vtable for Derived Derived _ZTV7Derived 3u entries 0 int ... 0 8 int..
Understanding the vtable entries http://stackoverflow.com/questions/5712808/understanding-the-vtable-entries new D return 0 After compilation the vtable I get is this Vtable for B1 B1 _ZTV2B1 3u entries 0 int ... 0 8 int ... _ZTI2B1 16.. _ZTV2B1 3u entries 0 int ... 0 8 int ... _ZTI2B1 16 B1 f1 Vtable for D D _ZTV1D 3u entries 0 int ... 0 8 int ... _ZTI1D 16 D..
http://stackoverflow.com/questions/6606481/virtual-table-dispatch-table it might look like Known offset for vtable 0xblah Vtable for type Derived Known offset for x 3 Known offset for.. Known offset for x 3 Known offset for y 2 With the Vtable for type Derived looking something like Known offset for methodA..
a C++ hash map that preserves the order of insertion [duplicate] http://stackoverflow.com/questions/1899564/a-c-hash-map-that-preserves-the-order-of-insertion
API Hook on a COM object function? http://stackoverflow.com/questions/3692836/api-hook-on-a-com-object-function void psb fFound true Grab the 11th entry in the VTable which is BrowseObject void vtable void psb ShellBrowser_BrowseObject..
What can cause VTable pointer to be 0xdddddddd in Win32 debug build? http://stackoverflow.com/questions/5713099/what-can-cause-vtable-pointer-to-be-0xdddddddd-in-win32-debug-build can cause VTable pointer to be 0xdddddddd in Win32 debug build I am debugging..
What is the VTable Layout and VTable Pointer Location in C++ Objects in GCC 3.x and 4.x? http://stackoverflow.com/questions/70682/what-is-the-vtable-layout-and-vtable-pointer-location-in-c-objects-in-gcc-3-x is the VTable Layout and VTable Pointer Location in C Objects in GCC 3.x and.. is the VTable Layout and VTable Pointer Location in C Objects in GCC 3.x and 4.x I am looking.. in GCC 3.x and 4.x I am looking for details of the VTable structure order and contents and the location of the vtable..
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