C / C++ / MFC

yeti11 wrote:

but it did help me to abandon the idea that something is
wrong with cast

class A
{
public:
	A() {}
	virtual ~A() { std::cout << "destroying class A" << std::endl; }
	virtual print() const { std::cout << "class A" << std::endl; }
};
class B : public A
{
public:
	B() {}
	virtual ~B() { std::cout << "destroying class B" << std::endl; }
	virtual print() const { std::cout << "class B" << std::endl; }
};

int main(/*int argc, char* argv[]*/)
{
	std::vector<A*> a_vec;
	int i;
	for( i=0; i<3; ++i )
		a_vec.push_back(new B);

	for( i=0; i<3; ++i )
		a_vec[i]->print();

	for( i=0; i<3; ++i )
		delete a_vec[i];

	return 0;
}

wrote:

int _tmain(int argc, _TCHAR* argv[])
{
HANDLE hT1;
hT1 = CreateThread(NULL, 0, Thread1, NULL, 0, NULL);
WaitForSingleObject(hT1, INFINITE);CloseHandle(hT1);
cout<<"main thread"<<endl;
return 0;
}<="" blockquote="">

In this way - for example - you let the thread execute and wait for thread to finish, then back in main thread and this will finish, too.
Output will be

thread1
main thread

Nuclear launch detected

wrote:

I expected only "main thread" would be printed out, coz the main thread quits before Thread1 can be executed.

rockfanskid wrote:

I don't know how to build a class of a large number. It maybe include hundreds number characters. Its behaviour are "*(x)" , "+", "-" , "/".
Somebody helps me.