the new ublas mailing list is: ublas@lists.boost.org you should post there, you will have better chance to be answered... Austin Bingham wrote:
Apparently the wheels of the ublas mailing list move slowly, so I'm asking this question here.
Is there any way to set the "default" value of a sparse_matrix? sparse_matrix seems to guarantee that you always get a value when you access an index, even if that index hasn't been explicitly set. For sparse_matrix<float>, for instance, you get 0. Is there any way to specify this value? That is, if I wanted to get back, say, -1 for unset entries, is there a way to do this? There's no direct mention of this that I can find, although there were some discussions of zero-constructors or somesuch that may have been dealing with this question. Thanks.
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-- thomas