Re: What should std::map::erase return?

From:

Carl Barron <cbarron413@adelphia.net>

Newsgroups:

comp.lang.c++.moderated

Date:

Sat, 28 Apr 2007 01:34:45 CST

Message-ID:

<270420072000049355%cbarron413@adelphia.net>

In article <46323b07$1_2@news.estpak.ee>, Ahti Legonkov
<lego@127.0.0.1> wrote:

Hello!

The STL that comes with MSVC++ (2003 and 2005) has map with
erase(iterator) and erase(iterator, iterator) returning iterator. Also I
have a standard (N1905=05-0165) that says these erase overloads should
return iterator. GNU libstdc++ has a map implementation that has erase
members that return void. When I reported this error, I got a reply
saying that in their copy of the standard, erase returns void. Now I am
confused and don't know what to believe. So, what should
std::map::erase(iterator) and std::map::erase(iterator,iterator) return?

   According C++98 [iso/iec-14882] erase(iterator) returns void, recent
drafts[n2134.pdf in particular] update this to return an iterator so
the signature of the member function erase(iterator) is the same for
all standard containers. The change makes generic proggraming with
containers, easier...

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