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Re: room for improvement in implementation of "std::advance(InputIterator)": make it more resilient to bugs in user-level code: in particular, negative distances

From: Paolo Carlini <paolo dot carlini at oracle dot com>
To: Gabriel Dos Reis <gdr at integrable-solutions dot net>
Cc: Jonathan Wakely <jwakely dot gcc at gmail dot com>, Abe <abe149 at gmail dot com>, libstdc++ at gcc dot gnu dot org
Date: Mon, 10 Dec 2012 11:12:33 +0100
Subject: Re: room for improvement in implementation of "std::advance(InputIterator)": make it more resilient to bugs in user-level code: in particular, negative distances
References: <CA+Xw_vCXGQ-Abq6kNKi47tYnXw7gL7ay+K3_ZtqNK5-DQBUNEw@mail.gmail.com> <CAH6eHdRDvdFafPEVEmfJKuMApPWqMMvrECNVmBgNUfxzaagqqw@mail.gmail.com> <CAAiZkiAgt3qHb1Y-UWKkp1xc=q_5_LLrp6pbT1Ejk9X5hw=zaA@mail.gmail.com>

.. and don't see it clearly stated in the thread: this is *already* implemented in mainline, right? Or people want something different than a _GLIBCXX_DEBUG_ASSERT?

Paolo.

Follow-Ups:
- Re: room for improvement in implementation of "std::advance(InputIterator)": make it more resilient to bugs in user-level code: in particular, negative distances
  - From: Jonathan Wakely

References:

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