Ignore unused label

git-svn-id: http://svn.osgeo.org/geos/trunk@3925 5242fede-7e19-0410-aef8-94bd7d2200fb
Replace implicit boolean conversion with explicit nullptr test

git-svn-id: http://svn.osgeo.org/geos/trunk@3926 5242fede-7e19-0410-aef8-94bd7d2200fb
Disable copy ctor and assignment operator where relevant.

git-svn-id: http://svn.osgeo.org/geos/trunk@3927 5242fede-7e19-0410-aef8-94bd7d2200fb
Clean unsafe mix of type 'int' and type 'bool' in operation

git-svn-id: http://svn.osgeo.org/geos/trunk@3928 5242fede-7e19-0410-aef8-94bd7d2200fb
Add explicit cast from double to long unsigned int

git-svn-id: http://svn.osgeo.org/geos/trunk@3929 5242fede-7e19-0410-aef8-94bd7d2200fb