123, C++ (vc++) - rextester

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#include <stdio.h>
#include <stdint.h>

class A
{
public:
    A()
    {
        myCtr = ++ctr;
        printf("class A default Constructor - object id: %u\n", myCtr);
    }

A(const A &a2) {
        myCtr = ++ctr;
        printf("class A copy constructor - object id: %u\n", myCtr);

}

A(A &&a2) {
        myCtr = a2.myCtr;
        a2.myCtr = 0;

printf("class A move constructor - object id: %u\n", myCtr);

}

A & operator=(const A &a2) {
        myCtr = ++ctr;

printf("class A copy assignment - from object id: %u - to object id: %u\n", a2.myCtr, myCtr);

return *this;
    }

A & operator=(A &&a2) {
        printf("class A move assignment - from object id: %u - to object id: %u\n", a2.myCtr, myCtr);

if (this != &a2) {
            //myCtr = a2.myCtr;
            //a2.myCtr = 0;
        }

return *this;
    }

~A()
    {
        printf("class A destructor - object id: %u\n", myCtr);
    }

private:
    uint64_t myCtr;
    static uint64_t ctr;
};

class B
{
public:
    B() {

}

B(char * input, uint32_t len) {
        for (uint32_t i = 0; i < len; i++)
        {
            /* do something */
        }
    }

B(const B &b2) : characters(b2.characters)
    {
    }
	
    B(B &&b2) {
        characters = A(b2.characters);
    }

B & operator=(const B &b2) {
        characters = A(b2.characters);
    }

B & operator=(B &&b2) {
        characters = A(b2.characters);
    }

~B() {

}

private:
    A characters;
};

uint64_t A::ctr = 0;

int main(int argc, char *argv[]) {
    B b1 = B((char *)"b1", 2);
    B b2 = b1;

return 0;
}

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Compilation time: 1,29 sec, absolute running time: 0,32 sec, absolute service time: 1,62 sec