[Boost-bugs] [Boost C++ Libraries] #3485: Boost 1.40 Example.cpp program produces pages of MSVC level 1 warning 4180

Subject: [Boost-bugs] [Boost C++ Libraries] #3485: Boost 1.40 Example.cpp program produces pages of MSVC level 1 warning 4180
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2009-09-24 17:22:27

#3485: Boost 1.40 Example.cpp  program produces pages of MSVC level 1 warning 4180
----------------------------+-----------------------------------------------
 Reporter:  pbristow        |       Owner:  dave                 
     Type:  Bugs            |      Status:  new                  
Milestone:  Boost 1.41.0    |   Component:  Getting Started Guide
  Version:  Boost 1.40.0    |    Severity:  Cosmetic             
 Keywords:  warning lambda  |  
----------------------------+-----------------------------------------------
 Compiling...  Getting started example.cpp
 example.cpp
 I:\boost_trunk\boost/lambda/detail/lambda_functors.hpp(140) : warning
 C4180: qualifier applied to function type has no meaning; ignored
         I:\boost_trunk\boost/lambda/detail/lambda_functor_base.hpp(172) :
 see reference to class template instantiation
 'boost::lambda::lambda_functor<T>' being compiled
         with
         [
             T=boost::lambda::identity<const int>
         ]
 ...

         with
         [
 T=boost::lambda::lambda_functor_base<boost::lambda::arithmetic_action<boost::lambda::multiply_action>,boost::tuples::tuple<boost::lambda::lambda_functor<boost::lambda::placeholder<1>>,const
 int,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type,boost::tuples::null_type>>

 This is harmless but doesn't get newbies off to an encouraging start!

 I would be *much* nicer to have this warning (MSVC level 1) removed or
 quieted in lambda.

 But it is not obvious to me how to do this - adding disable for the
 existing warning supression does not quiet the warning.

 #pragma warning (disable : 4180) as the first line does work.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/3485>
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