#include <type_traits>
#include <stdexcept>
#include <memory>
#include <iostream>
struct ObjectType {
       int arg1, arg2;
       ObjectType() { std::cout << "default ctor called\n" ; } // this will NOT be printed!
       ObjectType(int a1, int a2) : arg1(a1), arg2(a2) {}
 
       void* operator new[](std::size_t n, int cnt, const ObjectType& o)
       {
           if (n!=0)
                   throw std::runtime_error("must use [0] with this new");
           typedef std::aligned_storage<sizeof(o), std::alignment_of<ObjectType>::value>::type buf;
           ObjectType* ptr = reinterpret_cast<ObjectType*>(new buf[cnt]);
           std::uninitialized_fill_n(ptr, cnt, o);
           return ptr;
    }
};
 
int main()
{
        ObjectType* object = new(100, ObjectType(1,2)) ObjectType[0]; // may not work with other classes!
 
        std::cout << "element #0 == (" << object[0].arg1 << ", " << object[0].arg2 << ")\n";
        std::cout << "element #99 == (" << object[99].arg1 << ", " << object[99].arg2 << ")\n";
 
        delete[] object; // does not call destructors for each ObjectType, needs to be implemented too.
}
 
// tested with MSVC++ 2010 Express Edition too

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