[boost] ublas matrix::swap problem

From: boost (boost_at_[hidden])
Date: 2002-04-17 09:22:27

Salut,

I'm currently puzzled by the matrix::swap function.
Why is there an assertion checking the sizes of the 
swapped matrices in matrix.h:

// Swapping
NUMERICS_INLINE
void swap (matrix &m) {
    check (this != &m, external_logic ());
    check (size1_ == m.size1_, bad_size ());
    check (size2_ == m.size2_, bad_size ());
    std::swap (size1_, m.size1_);
    std::swap (size2_, m.size2_);
    data_.swap (m.data_);
}

Best wishes,
Peter