[Boost-bugs] [Boost C++ Libraries] #10264: [smart_ptr] AIX 6.1 bug with sched_yield() function out of scope

Subject: [Boost-bugs] [Boost C++ Libraries] #10264: [smart_ptr] AIX 6.1 bug with sched_yield() function out of scope
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2014-07-28 15:56:20

#10264: [smart_ptr] AIX 6.1 bug with sched_yield() function out of scope
-----------------------------------------------+-----------------------
 Reporter:  Axel Ismirlian <axel.ismirlian@…>  |      Owner:  pdimov
     Type:  Bugs                               |     Status:  new
Milestone:  To Be Determined                   |  Component:  smart_ptr
  Version:  Boost 1.55.0                       |   Severity:  Problem
 Keywords:                                     |
-----------------------------------------------+-----------------------
 The error that pops up in some of the lambda tests is the following:

 ../libs/lambda/test/algorithm_test.cpp:37:48: error: reference to 'var' is
 ambiguous
                       protect((_1 = var(sum), ++var(sum)))));
                                                 ^
 In file included from /usr/include/sys/thread.h:37:0,
                  from /usr/include/sys/ptrace.h:28,
                  from /usr/include/sys/proc.h:42,
                  from /usr/include/sys/pri.h:43,
                  from /usr/include/sys/sched.h:38,
                  from /usr/include/sched.h:51,
                  from ../boost/smart_ptr/detail/yield_k.hpp:101,
                  from ../boost/smart_ptr/detail/spinlock_sync.hpp:18,
                  from ../boost/smart_ptr/detail/spinlock.hpp:50,
                  from ../boost/smart_ptr/detail/spinlock_pool.hpp:25,
                  from ../boost/smart_ptr/shared_ptr.hpp:34,
                  from ../boost/shared_ptr.hpp:17,
                  from ../boost/test/utils/callback.hpp:21,
                  from ../boost/test/execution_monitor.hpp:38,
                  from ../boost/test/impl/execution_monitor.ipp:30,
                  from ../boost/test/minimal.hpp:37,
                  from ../libs/lambda/test/algorithm_test.cpp:14:
 /usr/include/sys/var.h:59:8: note: candidates are: struct var
  struct var {
         ^
 In file included from ../boost/lambda/core.hpp:53:0,
                  from ../boost/lambda/lambda.hpp:14,
                  from ../libs/lambda/test/algorithm_test.cpp:16:
 ../boost/lambda/detail/lambda_functor_base.hpp:66:19: note:
 template<class T> boost::lambda::lambda_functor<T>
 boost::lambda::var(const boost::lambda::lambda_functor<T>&)
  lambda_functor<T> var(const lambda_functor<T>& t) { return t; }
                    ^
 ../boost/lambda/detail/lambda_functor_base.hpp:60:38: note:
 template<class T>
 boost::lambda::lambda_functor<boost::lambda::identity<T&> >
 boost::lambda::var(T&)
  inline lambda_functor<identity<T&> > var(T& t) { return identity<T&>(t);
 }
                                       ^

 In ../boost/lambda/detail/lambda_functor_base.hpp there is variable called
 var that conflicts with an AIX system variable. Defining var and later
 undefining it frees that variable name. However, the fix I propose is in
 the smart_ptr function.

 Please look at the Pull Request created for further details:
 https://github.com/boostorg/smart_ptr/pull/7

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/10264>
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