Run Code
|
API
|
Code Wall
|
Misc
|
Feedback
|
Login
|
Theme
|
Privacy
|
Patreon
virtual function
Language:
Ada
Assembly
Bash
C#
C++ (gcc)
C++ (clang)
C++ (vc++)
C (gcc)
C (clang)
C (vc)
Client Side
Clojure
Common Lisp
D
Elixir
Erlang
F#
Fortran
Go
Haskell
Java
Javascript
Kotlin
Lua
MySql
Node.js
Ocaml
Octave
Objective-C
Oracle
Pascal
Perl
Php
PostgreSQL
Prolog
Python
Python 3
R
Rust
Ruby
Scala
Scheme
Sql Server
Swift
Tcl
Visual Basic
Layout:
Vertical
Horizontal
//g++ 5.4.0 #include <iostream> using std::cout ; using std::string; struct Base{ public: // virtual function virtual void func() { cout<<"Hello World\n"; } // pure virtual function virtual void say(string message) = 0; }; class A : public Base{ public: // override Base::func, and mark "final"(can not be overrride) void func() final{ cout<<"A func\n"; } // override Base::say void say(string message) override{ cout<<message<<'\n'; } // base class haven't "test" to override //void test() override; }; class B : public A{ string name; public: B(const char* name):name(name){} // A::func is marked "final" cannot be override //void func() override; // override A::say void say(string message) override{ cout<<name<<" say "<<message<<'\n'; } }; int main() { //Base base; // error: Base is abstract class Base* a = new A(); Base* b = new B("B"); a->func(); a->say(string("Hi")); b->say(string("Hi")); a->Base::func(); b->Base::func(); }
g++
Show compiler warnings
[
+
] Compiler args
[
+
]
Show input
Compilation time: 0.74 sec, absolute running time: 0.29 sec, cpu time: 0.2 sec, memory peak: 3 Mb, absolute service time: 1,03 sec
edit mode
|
history
|
discussion
A func Hi B say Hi Hello World Hello World