How to correctly deallocate or delete a c++ vector?

Question

I have a weird problem with vector in C++..

I created a vector and inserted 10000 integer values into it and have checked the memory utilization. It is 600 kb. But after

Answer 1

The following code gives the answer:

#include 
#include 

struct Foo
{
    ~Foo()
    {
        printf("~Foo()\n");
    }
};

int main()
{
    std::vector v;

    v.push_back(Foo());

    // This causes all Foo instances to be released as well as all
    // space allocated by the vector to be released.
    v = std::vector();

    // As you can see, all printf("~Foo()\n") calls happen before this
    // line is printed.
    printf("~~~~~~~~~~~~~~\n");

    return 0;
}