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Re: Fix some _GLIBCXX_DEBUG pretty printer errors

From: Jonathan Wakely <jwakely dot gcc at gmail dot com>
To: François Dumont <frs dot dumont at gmail dot com>
Cc: "libstdc++ at gcc dot gnu dot org" <libstdc++ at gcc dot gnu dot org>, gcc-patches <gcc-patches at gcc dot gnu dot org>
Date: Thu, 8 Mar 2018 18:11:57 +0000
Subject: Re: Fix some _GLIBCXX_DEBUG pretty printer errors
Authentication-results: sourceware.org; auth=none
References: <62558510-8551-9275-d4dd-94acbd8914e0@gmail.com> <CAH6eHdTkgqbSWX4LzoMB9Pe4n-0Ln_U8Oz2yCn9_dHw6gJDYEQ@mail.gmail.com> <a0661cbf-8e5f-e8bf-f5f5-023629975652@gmail.com> <CAH6eHdQighv9LWafHTWwGMgNQTOm2X15i3ZWQtV1Uxvr+JxCxA@mail.gmail.com>

This caused a new regression for:

  std::forward_list<std::string> flst;
  std::forward_list<std::string>::iterator flstiter0;
// { dg-final { note-test flstiter0 {non-dereferenceable iterator for
std::forward_list}} }


$1 = {_M_node = 0x0}
got: $1 = {_M_node = 0x0}
FAIL: libstdc++-prettyprinters/debug_cxx11.cc print flstiter0

Follow-Ups:
- Re: Fix some _GLIBCXX_DEBUG pretty printer errors
  - From: François Dumont
- Re: Fix some _GLIBCXX_DEBUG pretty printer errors
  - From: François Dumont

References:
- Re: Fix some _GLIBCXX_DEBUG pretty printer errors
  - From: Jonathan Wakely
- Re: Fix some _GLIBCXX_DEBUG pretty printer errors
  - From: François Dumont
- Re: Fix some _GLIBCXX_DEBUG pretty printer errors
  - From: Jonathan Wakely

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