A question about using new instead of malloc

[zarzor2010]

Hello All,
I have a question about the KLU library for LU factorization of sparse matrices.

The KLU library accepts a pointer to a memory allocator function, by default it is malloc().
Then it uses this pointer to allocate the memory required.

I want to extend the library and I now have object of classes. I want to use the operator new instead of malloc to allocate the memory. In the same time I want the new operator to call the constructors of the objects.

Is there a way to do it?

Thank you
Mina

[ne555]

namespace allocator{
  template <class T>
  T* allocate(size_t n){
    return new T[n];
  }
}

new calls the constructors.

[zarzor2010]

Thank you ne555,

I think this is the best solution for my problem... Do you think it would have any side effects?

Thank you

[ne555]

I'm not aware of any. But check out if the library is aware of objects (by instance, that it does not bzero() a chunk)
By the way, T must have a default constructor. If that's an issue, you could wrap std::allocator.

Don't forget to delete []