[boost] Problem with multi_array and serialization

From: Matthias Troyer (troyer_at_[hidden])
Date: 2005-02-20 14:49:47

Hi,

Trying to combine boost multi_array and serialization I found a very 
strange compiler bug (?) on MacOS X, using eother the Apple version of 
gcc-3.1. The following simple code will not compile:

#include <boost/multi_array.hpp>

namespace strange_namespace {
class access {
};
}

int main()
{
   boost::multi_array<int,2> x(boost::extents[3][3]);
   int y=x[0][0];
}

It fails with the error message

src/boost/boost/multi_array/multi_array_ref.hpp: In member function 
`typename
    boost::const_multi_array_ref<T, NumDims, T*>::reference
    boost::multi_array_ref<T, NumDims>::operator[](typename
    boost::const_multi_array_ref<T, NumDims, T*>::index) [with T = int, 
long
    unsigned int NumDims = 2]':
test.C:11:   instantiated from here
src/boost/boost/multi_array/multi_array_ref.hpp:512: no matching 
function for
    call to `boost::const_multi_array_ref<int, 2, int*>::access(
    boost::type<boost::detail::multi_array::sub_array<int, 1> >, index&, 
int*,
    const size_type*, const index*, const index*)'
src/boost/boost/multi_array/subarray.hpp: In member function `typename
    boost::detail::multi_array::const_sub_array<T, NumDims, 
T*>::reference
    boost::detail::multi_array::sub_array<T, 
NumDims>::operator[](typename
    boost::detail::multi_array::const_sub_array<T, NumDims, T*>::index) 
[with T
    = int, long unsigned int NumDims = 1]':
test.C:11:   instantiated from here
src/boost/boost/multi_array/subarray.hpp:261: no matching function for 
call to
    `boost::detail::multi_array::const_sub_array<int, 1, int*>::access(
    boost::type<int&>, index&, int*&, const size_type*, const index*, 
const
    index*)'

This looks like a compiler bug, since the code compiles when removing 
the class definition access in a completely unrelated namespace. Has 
something similar been observed before? Does anybody know a workaround?

Matthias