ring iterator adaptor for vector interator

[PengYu.UT]

Suppose I want a ring_iterator, which is almost like the
vector::iterator. But it will equals begin(), when it passed the end().
It is easy to write an adaptor for it. But I'm wondering if there is
any publicly available code for it.

Thanks,
Peng

 

[Daniel T.]

Suppose I want a ring_iterator, which is almost like the
vector::iterator. But it will equals begin(), when it passed the end().
It is easy to write an adaptor for it. But I'm wondering if there is
any publicly available code for it.

Do you want begin() == end() + 1, or do you want begin() == end()?

 

[PengYu.UT]

Do you want begin() == end() + 1, or do you want begin() == end()?

Sorry for the confusion. I want begin() == end().

 

[red floyd]

Sorry for the confusion. I want begin() == end().

Not a good idea. No standard algorithms will work in that case.

for (T::iterator iter = c.begin();
iter != c.end();
++iter)
{
// yada yada yada
}

Will not execute any loop iterations.