[ublas] Annoying warnings under MSVC 7.1

From: Joe Gottman (jgottman_at_[hidden])
Date: 2007-02-28 20:05:13

I am getting some annoying warnings when I compile ublas code under MSVC 
7.1.  Given the following code:

boost::numeric::ublas::matrix<double> foo;
boost::numeic::ublas::vector<double> bar;
boost::numeric::ublas::vector<double> product(prod(foo, bar));

I get the following warning messages:

Is there any way to modify my code to get rid of these?

c:\code\boost\numeric\ublas\traits.hpp(42) : warning C4267: 'argument' : 
conversion from 'size_t' to 'const unsigned int', possible loss of data
         c:\code\boost\numeric\ublas\matrix_expression.hpp(3647) : see 
reference to class template instantiation 
'boost::numeric::ublas::promote_traits<X,Y>' being compiled
         with
         [
 
X=boost::numeric::ublas::vector<double,boost::numeric::ublas::unbounded_array<double>>::size_type,
             Y=boost::numeric::ublas::matrix<double>::size_type
         ]
         c:\code\fin46\fin46\correlated_uniform.cpp(47) : see reference 
to class template instantiation 
'boost::numeric::ublas::matrix_vector_binary2<E1,E2,F>' being compiled
         with
         [
 
E1=boost::numeric::ublas::vector<double,boost::numeric::ublas::unbounded_array<double>>,
             E2=boost::numeric::ublas::matrix<double>,
 
F=boost::numeric::ublas::matrix_vector_prod2<double,double,boost::numeric::ublas::matrix_vector_binary2_traits<double,boost::numeric::ublas::vector<double,boost::numeric::ublas::unbounded_array<double>>,double,boost::numeric::ublas::matrix<double>>::promote_type>
         ]
c:\code\boost\numeric\ublas\traits.hpp(42) : warning C4244: 'argument' : 
conversion from '__w64 int' to 'const int', possible loss of data
         c:\code\boost\numeric\ublas\matrix_expression.hpp(3648) : see 
reference to class template instantiation 
'boost::numeric::ublas::promote_traits<X,Y>' being compiled
         with
         [
 
X=boost::numeric::ublas::vector<double,boost::numeric::ublas::unbounded_array<double>>::difference_type,
             Y=boost::numeric::ublas::matrix<double>::difference_type
         ]
c:\code\boost\numeric\ublas\matrix_expression.hpp(3664) : warning C4267: 
'return' : conversion from 'size_t' to 
'boost::numeric::ublas::matrix_vector_binary2<E1,E2,F>::size_type', 
possible loss of data
         with
         [
 
E1=boost::numeric::ublas::vector<double,boost::numeric::ublas::unbounded_array<double>>,
             E2=boost::numeric::ublas::matrix<double>,
 
F=boost::numeric::ublas::matrix_vector_prod2<double,double,boost::numeric::ublas::matrix_vector_binary2_traits<double,boost::numeric::ublas::vector<double,boost::numeric::ublas::unbounded_array<double>>,double,boost::numeric::ublas::matrix<double>>::promote_type>
         ]
         c:\code\boost\numeric\ublas\matrix_expression.hpp(3663) : while 
compiling class-template member function 
'boost::numeric::ublas::matrix_vector_binary2<E1,E2,F>::size_type 
boost::numeric::ublas::matrix_vector_binary2<E1,E2,F>::size(void) const'
         with
         [
 
E1=boost::numeric::ublas::vector<double,boost::numeric::ublas::unbounded_array<double>>,
             E2=boost::numeric::ublas::matrix<double>,
 
F=boost::numeric::ublas::matrix_vector_prod2<double,double,boost::numeric::ublas::matrix_vector_binary2_traits<double,boost::numeric::ublas::vector<double,boost::numeric::ublas::unbounded_array<double>>,double,boost::numeric::ublas::matrix<double>>::promote_type>
         ]
         c:\code\fin46\fin46\correlated_uniform.cpp(47) : see reference 
to class template instantiation 
'boost::numeric::ublas::matrix_vector_binary2<E1,E2,F>' being compiled
         with
         [
 
E1=boost::numeric::ublas::vector<double,boost::numeric::ublas::unbounded_array<double>>,
             E2=boost::numeric::ublas::matrix<double>,
 
F=boost::numeric::ublas::matrix_vector_prod2<double,double,boost::numeric::ublas::matrix_vector_binary2_traits<double,boost::numeric::ublas::vector<double,boost::numeric::ublas::unbounded_array<double>>,double,boost::numeric::ublas::matrix<double>>::promote_type>
         ]
c:\code\boost\numeric\ublas\detail\vector_assign.hpp(268) : warning 
C4267: 'argument' : conversion from 'size_t' to 
'boost::numeric::ublas::matrix_vector_binary2<E1,E2,F>::size_type', 
possible loss of data
         with
         [
 
E1=boost::numeric::ublas::vector<double,boost::numeric::ublas::unbounded_array<double>>,
             E2=boost::numeric::ublas::matrix<double>,
 
F=boost::numeric::ublas::matrix_vector_prod2<double,double,boost::numeric::ublas::matrix_vector_binary2_traits<double,boost::numeric::ublas::vector<double,boost::numeric::ublas::unbounded_array<double>>,double,boost::numeric::ublas::matrix<double>>::promote_type>
         ]
         c:\code\boost\numeric\ublas\detail\vector_assign.hpp(280) : see 
reference to function template instantiation 'void 
boost::numeric::ublas::indexing_vector_assign<F,V,boost::numeric::ublas::matrix_vector_binary2<E1,E2,boost::numeric::ublas::matrix_vector_prod2<T1,T2,TR>>>(V 
&,const boost::numeric::ublas::vector_expression<E> &)' being compiled
         with
         [
             F=boost::numeric::ublas::scalar_assign,
 
V=boost::numeric::ublas::vector<double,boost::numeric::ublas::unbounded_array<double>>,
 
E1=boost::numeric::ublas::vector<double,boost::numeric::ublas::unbounded_array<double>>,
             E2=boost::numeric::ublas::matrix<double>,
             T1=double,
             T2=double,
 
TR=boost::numeric::ublas::matrix_vector_binary2_traits<double,boost::numeric::ublas::vector<double,boost::numeric::ublas::unbounded_array<double>>,double,boost::numeric::ublas::matrix<double>>::promote_type,
 
E=boost::numeric::ublas::matrix_vector_binary2<boost::numeric::ublas::vector<double,boost::numeric::ublas::unbounded_array<double>>,boost::numeric::ublas::matrix<double>,boost::numeric::ublas::matrix_vector_prod2<double,double,boost::numeric::ublas::matrix_vector_binary2_traits<double,boost::numeric::ublas::vector<double,boost::numeric::ublas::unbounded_array<double>>,double,boost::numeric::ublas::matrix<double>>::promote_type>>
         ]
         c:\code\boost\numeric\ublas\detail\vector_assign.hpp(448) : see 
reference to function template instantiation 'void 
boost::numeric::ublas::vector_assign<F,V,boost::numeric::ublas::matrix_vector_binary2<E1,E2,boost::numeric::ublas::matrix_vector_prod2<T1,T2,TR>>>(V 
&,const boost::numeric::ublas::vector_expression<E> 
&,boost::numeric::ublas::dense_proxy_tag)' being compiled
         with
         [
             F=boost::numeric::ublas::scalar_assign,
 
V=boost::numeric::ublas::vector<double,boost::numeric::ublas::unbounded_array<double>>,
 
E1=boost::numeric::ublas::vector<double,boost::numeric::ublas::unbounded_arr
ay<double>>,
             E2=boost::numeric::ublas::matrix<double>,
             T1=double,
             T2=double,
 
TR=boost::numeric::ublas::matrix_vector_binary2_traits<double,boost::numeric::ublas::vector<double,boost::numeric::ublas::unbounded_array<double>>,double,boost::numeric::ublas::matrix<double>>::promote_type,
 
E=boost::numeric::ublas::matrix_vector_binary2<boost::numeric::ublas::vector<double,boost::numeric::ublas::unbounded_array<double>>,boost::numeric::ublas::matrix<double>,boost::numeric::ublas::matrix_vector_prod2<double,double,boost::numeric::ublas::matrix_vector_binary2_traits<double,boost::numeric::ublas::vector<double,boost::numeric::ublas::unbounded_array<double>>,double,boost::numeric::ublas::matrix<double>>::promote_type>>
         ]
         c:\code\boost\numeric\ublas\vector.hpp(74) : see reference to 
function template instantiation 'void 
boost::numeric::ublas::vector_assign<boost::numeric::ublas::scalar_assign,boost::numeric::ublas::vector<T,A>,boost::numeric::ublas::matrix_vector_binary2<E1,E2,F>>(V 
&,const boost::numeric::ublas::vector_expression<E> &)' being compiled
         with
         [
             T=double,
             A=boost::numeric::ublas::unbounded_array<double>,
 
E1=boost::numeric::ublas::vector<double,boost::numeric::ublas::unbounded_array<double>>,
             E2=boost::numeric::ublas::matrix<double>,
 
F=boost::numeric::ublas::matrix_vector_prod2<double,double,boost::numeric::ublas::matrix_vector_binary2_traits<double,boost::numeric::ublas::vector<double,boost::numeric::ublas::unbounded_array<double>>,double,boost::numeric::ublas::matrix<double>>::promote_type>,
 
V=boost::numeric::ublas::vector<double,boost::numeric::ublas::unbounded_array<double>>,
 
E=boost::numeric::ublas::matrix_vector_binary2<boost::numeric::ublas::vector<double,boost::numeric::ublas::unbounded_array<double>>,boost::numeric::ublas::matrix<double>,boost::numeric::ublas::matrix_vector_prod2<double,double,boost::numeric::ublas::matrix_vector_
binary2_traits<double,boost::numeric::ublas::vector<double,boost::numeric::ublas::unbounded_array<double>>,double,boost::numeric::ublas::matrix<double>>::promote_type>>
         ]
         c:\code\fin46\fin46\correlated_uniform.cpp(47) : see reference 
to function template instantiation 
'boost::numeric::ublas::vector<T,A>::vector<boost::numeric::ublas::matrix_vector_binary2<E1,E2,F>>(const 
boost::numeric::ublas::vector_expression<E> &)' being compiled
         with
         [
             T=double,
             A=boost::numeric::ublas::unbounded_array<double>,
 
E1=boost::numeric::ublas::vector<double,boost::numeric::ublas::unbounded_array<double>>,
             E2=boost::numeric::ublas::matrix<double>,
 
F=boost::numeric::ublas::matrix_vector_prod2<double,double,boost::numeric::ublas::matrix_vector_binary2_traits<double,boost::numeric::ublas::vector<double,boost::numeric::ublas::unbounded_array<double>>,double,boost::numeric::ublas::matrix<double>>::promote_type>,
 
E=boost::numeric::ublas::matrix_vector_binary2<boost::numeric::ublas::vector<double,boost::numeric::ublas::unbounded_array<double>>,boost::numeric::ublas::matrix<double>,boost::numeric::ublas::matrix_vector_prod2<double,double,boost::numeric::ublas::matrix_vector_binary2_traits<double,boost::numeric::ublas::vector<double,boost::numeric::ublas::unbounded_array<double>>,double,boost::numeric::ublas::matrix<double>>::promote_type>>
         ]