One thing to note is that erase on SGI's slist still exists, except that it removes the element that the iterator points to in linear time.Originally Posted by manasij7479
Then what happens if the iterator returned by begin() is dereferenced?
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I'd keep both then..
Same as what happens for end() ..Then what happens if the iterator returned by begin() is dereferenced?
...but the loops will look more complicated.... for(auto x = ++(l.begin());x!=l.end();x++)
and that looks like a bad idea anyway..
Remember that to the user, the sentinels "should not exist." That is, they should not dereference those sentinels. So what happens if they do? It's best to simply make sure they can't, if possible.
I'm not sure keeping both is a bad thing. Even if remove just unhooks a node from the list, you could always invent erase(). Then the code is like the remove-erase idiom.
