On Mon, Apr 29, 2013 at 9:47 AM, Jordi Gutiérrez Hermoso <jord...@octave.org > wrote:
> > All matrices need to be linearly indexable, and of course, this is how > they are actually stored in memory, as a single long array indexed by > a single index. Thus, the total number of indexable elements of a > matrix can't be larger than > std::numeric_limits<octave_idx_type>::max(). > > There could be some tricks we could do to relax this requirement for > sparse matrices, but it would require some pretty deep surgery of the > current code. > > - Jordi G. H. > true for full matrices but sparse matrices are stored as three arrays and the nonzero and row index arrays are the only ones that need be limited. So you are saying that sparse matrices are treated as full in some places? -- Ed Meyer
