Test output for sparse-vectors [ok]

Testing time: 0s

/home/mario/local/chicken-4.8.0.3/bin/csi -script run.scm < /dev/null
  /home/mario/local/chicken-4.8.0.3/bin/csi -R sparse-vectors -s test.scm 1000000000
filling ...
checking (highest = 999882984) ...