Re: Regarding dereference type of Forward Iterators
On Apr 3, 6:21 pm, red floyd <redfl...@gmail.com> wrote:
On Apr 3, 3:38 am, "gautamcoo...@gmail.com" <gautamcoo...@gmail.com>
wrote:
I read in Boost C++ docs that the result of a deference on a
model of Forward Iterator is T&, where T is the value type
of the model of Forward Iterator. But I could not find the
same statement in the SGI STL specification of Forward
Iterator. Can anyone kindly point it out to me?
It doesn't matter what the SGI spec says. It only matters
what the Standard says.
Table 74 in 24.1.3 of ISO/IEC 14882:2003 specifies that *a has
return type T&.
There's also a requirement that if a and b are iterators, and a
== b, that *a and *b refer to the same object, i.e. that &*a ==
&*b. Which is really too restrictive in the case of
non-mutating iterators.
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