[MSDN Library September 1992] Pure Virtual Functions (30.6503496503497%)

Product Documentation > C/C++ 7.0 > C++ Tutorial > PART 2 Classes > Chapter 7 Inheritance and Polymorphism > Virtual Functions

[MSDN Library June 1998] Pure Virtual Functions and Abstract Classes (14.3427996422182%)

MSDN Library Visual Studio 6.0 > Visual C++ Documentation > Using Visual C++ > Visual C++ Programmer's Guide > Language Quick Reference > C/C++ Keywords > virtual