[Boost-bugs] [Boost C++ Libraries] #10632: Problem with range transform with gcc-4.8 optimized

Subject: [Boost-bugs] [Boost C++ Libraries] #10632: Problem with range transform with gcc-4.8 optimized
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2014-10-07 15:52:45

#10632: Problem with range transform with gcc-4.8 optimized
--------------------------------------+------------------------
 Reporter:  Fabien Nendaz <fabien@…>  |      Owner:  neilgroves
     Type:  Bugs                      |     Status:  new
Milestone:  To Be Determined          |  Component:  range
  Version:  Boost 1.55.0              |   Severity:  Problem
 Keywords:                            |
--------------------------------------+------------------------
 With gcc4.8, if the option -O is used, the operation " |
 transformed(arg1)" on a transformed range leads to unexpected results.

 E.g. if "initialVec" is a vector containing any values, the following line
 gives a null resultVec:[[BR]]
 auto resultVec =  initialVec | transformed( arg1 * 2 ) | transformed( arg1
 );

 This problem is also present with clang (optimized) and visual studio 2013
 (in release), but not in debug modes, and not with gcc-4.6.

 Note that an operation in the second transformed remove this problem: the
 following code is working as expected:[[BR]]
 auto resultVec =  initialVec | transformed( arg1 * 2 ) | transformed( arg1
 * 1 );

 This problem has been reproduced with boost 1.49, 1.55 and 1.56.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/10632>
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