Prevent creation of one element HashSetCollision1

[rklaehn]

if there is one element, there is no collision!

A problem with this might be that size for ListSet is O(N), and there is no other way to figure out if a ListSet contains exactly one element. Also, head might not be efficient for ListSet.

But clearly having a HashSetCollision1 with one element is undesirable.

[scala-jenkins]

Started jenkins job pr-rangepos at https://scala-webapps.epfl.ch/jenkins/job/pr-rangepos/93/

[scala-jenkins]

Started jenkins job pr-scala-testsuite-linux-opt at https://scala-webapps.epfl.ch/jenkins/job/pr-scala-testsuite-linux-opt/796/

[scala-jenkins]

jenkins job pr-rangepos: Failed - https://scala-webapps.epfl.ch/jenkins/job/pr-rangepos/93/

[scala-jenkins]

jenkins job pr-scala-testsuite-linux-opt: Failed - https://scala-webapps.epfl.ch/jenkins/job/pr-scala-testsuite-linux-opt/796/

[jsuereth]

PLS REBUILD ALL

[scala-jenkins]

Started jenkins job pr-rangepos at https://scala-webapps.epfl.ch/jenkins/job/pr-rangepos/111/

[scala-jenkins]

Started jenkins job pr-scala-testsuite-linux-opt at https://scala-webapps.epfl.ch/jenkins/job/pr-scala-testsuite-linux-opt/815/

[scala-jenkins]

jenkins job pr-rangepos: Failed - https://scala-webapps.epfl.ch/jenkins/job/pr-rangepos/111/

[scala-jenkins]

jenkins job pr-scala-testsuite-linux-opt: Success - https://scala-webapps.epfl.ch/jenkins/job/pr-scala-testsuite-linux-opt/815/

[jsuereth]

Again, why 2.9.x? We're pushing a 2.10.x release shortly. 2.9.x gets fixes on an as needed basis.

[rklaehn]

Hi Josh,

sorry, that was a mistake.

On Tue, Aug 7, 2012 at 9:33 PM, Josh Suereth notifications@github.comwrote:

Again, why 2.9.x? We're pushing a 2.10.x release shortly. 2.9.x gets fixes
on an as needed basis.

—
Reply to this email directly or view it on GitHubhttps://github.com//pull/1071#issuecomment-7564132.

[rklaehn]

Closing this because it was against 2.9.x. Will open a new one against 2.10.x.