From: Mikko Rasa <tdb@tdb.fi>
Date: Sat, 2 Dec 2017 14:41:22 +0000 (+0200)
Subject: Make certain functions pure virtual so I won't forget to implement them
X-Git-Url: http://git.tdb.fi/?p=libs%2Fcore.git;a=commitdiff_plain;h=481b844ed7d180ffbf70223075f2fc1ffdb5b444;hp=481b844ed7d180ffbf70223075f2fc1ffdb5b444

Make certain functions pure virtual so I won't forget to implement them
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