On Sep 15, 2008, at 4:43 PM, Alex Reynolds wrote:
Is there a difference in the underlying storage between vector<BOOL>
and
vector<bool>?
Yes! std::vector is a class template. There's a generic
implementation provided that works with any type (within certain
constraints), but there's a specialization for the 'bool' case. You
only get ~1 bit for bit with the specialization, i.e. vector<bool>.
Given that BOOL is typedef'ed to signed char, vector<BOOL> uses the
same storage as vector<signed char>, about 1 byte per element.
Cheers,
Ken
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