Subject: Re: [boost] [smart-ptr][containers] type of the operator index
From: Rhys Ulerich (rhys.ulerich_at_[hidden])
Date: 2011-12-04 17:11:18
>> Scoped_array can not take a pointer in the middle of the allocated array
>> as its role is to delete it.
True for scoped_array. As Olaf pointed out, it would be possible to
have a custom deleter for shared_array that would allow shared_array
to point to the middle of an allocation. Then it seems reasonable to
have shared_array::operator take a ptrdiff_t. It'd be weird to have
shared_array and scoped_array take different types for operator.
ptrdiff_t for both seems fine to me and size_t is demonstrably wrong
for shared_array in at least one (very goofy) use case.
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