Re: [Boost-bugs] [Boost C++ Libraries] #4726: Bugs when using named args.

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #4726: Bugs when using named args.
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2010-10-13 07:47:25

#4726: Bugs when using named args.
-----------------------------------------------+----------------------------
  Reporter:  Albin Thoren <thorena@…>          |       Owner:  dave   
      Type:  Bugs                              |      Status:  new    
 Milestone:  To Be Determined                  |   Component:  Python 
   Version:  Boost 1.44.0                      |    Severity:  Problem
Resolution:                                    |    Keywords:         
-----------------------------------------------+----------------------------

Comment (by Albin Thoren <thorena@…>):

 Yes, you're right. I should have seen that.

 The crash then only occurs with unintended use of bp::arg. That is, if the
 number of function arguments does not match the number of bp::arg(s). That
 is:
 {{{#!cpp
 bp::def("bug", &f, (bp::arg("y"), bp::arg("z")));
 }}}
 and
 {{{
 #!python
 bug(anything=1, y=2, z=3)
 }}}
 also crashes python.

 I assume any declaration with mismatching num of args should be
 illegal/undefined behaviour. Would it be possible to add a static assert
 to verify that the number or function arguments == the number of
 bp::arg(s)?

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/4726#comment:2>
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