[Boost-bugs] [Boost C++ Libraries] #10849: Dereferencing null pointer in Point<>::dimension_checker::apply()

Subject: [Boost-bugs] [Boost C++ Libraries] #10849: Dereferencing null pointer in Point<>::dimension_checker::apply()
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2014-12-04 18:21:04

#10849: Dereferencing null pointer in Point<>::dimension_checker::apply()
---------------------------------------------+---------------------------
 Reporter:  Steve Hickman <steve.hickman@…>  |      Owner:  barendgehrels
     Type:  Bugs                             |     Status:  new
Milestone:  To Be Determined                 |  Component:  geometry
  Version:  Boost 1.57.0                     |   Severity:  Problem
 Keywords:                                   |
---------------------------------------------+---------------------------
 The following lines:
             P* p = 0;
             geometry::set<Dimension>(*p, geometry::get<Dimension>(*p));

 indicate that the first parameter of the set<>() call will be a null
 pointer if it is evaluated before the call to get<>().

 If this is intentional *and* you can guarantee that the get<>() call will
 always be made before the first parameter is evaluated, then it should be
 documented with comments inline. Or, better yet, split the code into 2
 lines to insure *p isn't an attempt to dereference a null pointer and to
 insure that static code checkers don't think it is.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/10849>
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