Can I call `delete` on a vector of pointers in C++ via for_each ?

Question

Suppose I have a std::vector objs (for performance reasons I have pointers not actual Objs).

I populate it with obj.push

Answer 1

Yes, but you need a functor:

struct delete_ptr
{
    template 
    void operator()(T* pPtr)
    {
        delete pPtr;
    }
};

std::for_each(objs.begin(), objs.end(), delete_ptr());

In C++0x, lambda's help you make functors in-place:

std::for_each(objs.begin(), objs.end(), [](Obj* pPtr){ delete pPtr; });

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However, this is dangerous, in the face of exceptions. sbi has shown a solution.