Fixed bug to raise proper exception in ll_mat.c.
Fixed bug to raise proper exception in ll_mat.c.


git-svn-id: 6e52c6f1e2ab58bcf618ab6409fc98fd73eb03cd@173 ff1b08c8-c926-42db-9689-4755ed55ee98

rspeer/csc-pysparse,rspeer/csc-pysparse