From: Mikko Rasa <tdb@tdb.fi>
Date: Sat, 1 Dec 2012 20:50:39 +0000 (+0200)
Subject: Filter the types that get fallback lexical conversion operators
X-Git-Url: http://git.tdb.fi/?a=commitdiff_plain;h=ff0d3252cad08280b9c320b3fea5a11c80406c23;hp=ff0d3252cad08280b9c320b3fea5a11c80406c23;p=libs%2Fcore.git

Filter the types that get fallback lexical conversion operators

Only enable the operators for types that already have iostream formatting
operators defined.  Having them exist for everything would interfere with
some other stuff I'm going to commit in a moment.
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