Below I posted code to reproduce the error, which I adapted from [1]. Also from [1]: 'So what’s the moral of the story? If you ever see the error message pure virtual method called / terminate called without an active exception, check your object lifetimes! You may be trying to call members on a destructing (and thus incomplete) object'.

Technical facts

Application type(s)

Desktop application

Operating system(s) or programming environment(s)

Lubuntu 11.04 (natty)

IDE(s):

Qt Creator 2.0.1

Project type:

Console application

C++ standard:

C++0x

Compiler(s):

G++ 4.5.2

Libraries used:

STL: GNU ISO C++ Library, version 4.5.2

Qt project file: CppPureVirtualMethodCalled.pro


#-------------------------------------------------

#

# Project created by QtCreator 2011-08-04T10:58:45

#

#-------------------------------------------------

QT       += core

QT       -= gui

QMAKE_CXXFLAGS += -std=c++0x

TARGET = CppPureVirtualMethodCalled

CONFIG   += console

CONFIG   -= app_bundle

TEMPLATE = app

SOURCES += main.cpp

main.cpp


#include <thread>



struct Base

{

  virtual ~Base() { sleep(1); }

  virtual void DoIt() const = 0;

};



struct Derived : public Base

{

  virtual ~Derived() { }

  virtual void DoIt() const { }

};



void Task(const void* const p)

{

  const Base * const b = reinterpret_cast<const Base*>(p);

  while (1) b->DoIt();

}



int main()

{

  const Base * const b = new Derived();

  std::thread t(Task,b);

  delete b;

}

Screen output


pure virtual method called

terminate called without an active exception

The program has unexpectedly finished.

Program flow

View the 'CppRuntimeErrorPureVirtualMethodCalled' program flow (png)

The program flow can be seen in the (png) picture above. Not how first the instance is deletedm before the thread starts working with it.

(C++) pure virtual method called

Technical facts

Qt project file: CppPureVirtualMethodCalled.pro

main.cpp

Screen output

Program flow

References

Software Architecture blog

Go back to Richel Bilderbeek's C++ page.

Go back to Richel Bilderbeek's homepage.

(C++) pure virtual method called

Technical facts

Qt project file: CppPureVirtualMethodCalled.pro

main.cpp

Screen output

Program flow

References Software Architecture blog Go back to Richel Bilderbeek's C++ page. Go back to Richel Bilderbeek's homepage.

References

Software Architecture blog

Go back to Richel Bilderbeek's C++ page.

Go back to Richel Bilderbeek's homepage.