Hi,

One of my friend puzzled me to write a program which destructs itself.
i.e, by the time it stops execution, its executable file should be
deleted.

I tried a lot like
a) using " system() function to deleted the running program"
result: Access denied

b) googled for logic of other self destructing programs
result: not turned up

c) searched groups. They suggested using a .bat file, invoking the bat
file from currently executing one and through bat file deleting the
current executable after we have finished.
But in this case also, we are leaving residual (.bat file).
result: not a perfect one, only a remedy.

d) after system() function Access denial, i got a thought, as OS is
protecting the currently executing program, it is not possible to
perform anything explicitly on it. so what about taking a pointer in
the current program and filling the entire program space with garbage.

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On Dec 8, 4:04 pm, Ian Collins hotmail.com> wrote:

Hi Everyone,

I have the following code and the compiler complains that there isn't
any default constructor available,

class C
{
private:
C()
{
printf("in private constructor of C\n");
}
};

class E : public C
{
}

E obj; // compile time error saying no default constructor
available in E.

However, it works fine if i change the constructor C() from private to
public access specification. I'm wondering why this is so?

Hi Everyone,

I was searching for final class in c++, and i came across few links
which suggests to have the constructor of the, to be final class, as
private so that any derived class's constructors can't access the
same.

class C
{
private:
C()
{
printf("in private constructor of C\n");
}
};

class E : public C
{
public: E()
{
}
};

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