[Boost-bugs] [Boost C++ Libraries] #12872: icl calls set::insert with invalid iterator hint

Subject: [Boost-bugs] [Boost C++ Libraries] #12872: icl calls set::insert with invalid iterator hint
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2017-02-26 08:18:28

#12872: icl calls set::insert with invalid iterator hint
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 Reporter:  David Lacey <dave.lacey@…>  |      Owner:  jofaber
     Type:  Bugs                        |     Status:  new
Milestone:  To Be Determined            |  Component:  ICL
  Version:  Boost 1.63.0                |   Severity:  Problem
 Keywords:                              |
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 When using split_interval_set<T> the code in the add_segment function in
 interval_base_set.hpp tries to get the prior of an iterator that may be
 the first iterator of the underlying set container. This is then used as
 an insertion hint which causes a segfault in some standard container
 libraries (for example, the standard library on macOS).

 All other parts of the file use cyclic_prior for this purpose.

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Ticket URL: <https://svn.boost.org/trac/boost/ticket/12872>
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