Re: Dynamically allocated typedef'd array -- how to delete?

Seungbeom Kim <>
Sat, 31 Mar 2007 00:28:41 CST
Lance Diduck wrote:

On Mar 28, 12:29 pm, "Risto Lankinen" <> wrote:

struct Res { /* Uses RAII, hence must be destructed appropriately!
*/ };
typedef Res Res_Array[256];

And another method is making a selector
template <class T, bool _Dummy>
struct _deleter{
void operator()(T*d){delete d;}
template <class T>
struct _deleter<true>{
void operator()(T*d){delete[] d;}
template <class T> void DeleteMe(T*d){

Res* pRes = new Res;
Res* pArray = new Res_Array;

Since invoking DeleteMe<T> on pRes and on pArray will both instantiate
it with T=Res, I don't see how tr1:is_array<T> can be used to
disambiguate between the two forms of the delete operator.

If the disambiguation could have be done automatically, there would have
been no need to have two forms (delete and delete[]) at all -- the
compiler could just have chosen the right form all the time.

Seungbeom Kim

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