From: Nick Bowler <nbowler@draconx.ca>
Date: Wed, 14 Apr 2021 01:33:13 +0000 (-0400)
Subject: Fix crash when input has no holes.
X-Git-Tag: v1.2~8
X-Git-Url: http://git.draconx.ca/gitweb/slotifier.git/commitdiff_plain/edd5c230afdc7341e5a5564d9c8ee714688705fe?ds=sidebyside;hp=edd5c230afdc7341e5a5564d9c8ee714688705fe

Fix crash when input has no holes.

When the search tree has no elements, it seems the CNearTreeObjects
function does not give a CVector with zero elements but rather a
null pointer.  This results in a null dereference when that is
passed to CVectorSize, instead of 0 as expected.

Add an explicit check for this case to avoid crashing.
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