[Boost-bugs] [Boost C++ Libraries] #4549: vector/matrix_assign do not work for integral types

Subject: [Boost-bugs] [Boost C++ Libraries] #4549: vector/matrix_assign do not work for integral types
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2010-08-17 09:10:08

#4549: vector/matrix_assign do not work for integral types
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 Reporter:  Marco Guazzone <marco.guazzone@…>          |       Owner:  guwi17 
     Type:  Bugs                                       |      Status:  new    
Milestone:  To Be Determined                           |   Component:  uBLAS  
  Version:  Boost Development Trunk                    |    Severity:  Problem
 Keywords:                                             |  
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 I have found a possible problem in `vector_assign` and `matrix_assign`
 functions when vector and matrix values have integral type.

 For instance, when you try to assign two integral vectors (e.g.,
 `ublas::vector<int>`), you'll end up with the following runtime assertion:

 {{{
 Check failed in file
 boost-trunk/boost/numeric/ublas/detail/vector_assign.hpp
 at line 370:
 detail::expression_type_check (v, cv)
 terminate called after throwing an instance of
 'boost::numeric::ublas::external_logic'
  what():  external logic or bad condition of inputs
 Aborted (core dumped)
 }}}

 Similar exception will be thrown for integral matrices.

 I have identified two possible issues:
 1. In ''detail/vector_assign.hpp'' and ''detail/matrix_assign.hpp'', the
 check in function `detail::equals` should use `<=` instead of `<`.

 2. In ''detail/config.hpp'', macro `BOOST_UBLAS_TYPE_CHECK_MIN` should get
 zero for integral types.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/4549>
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