From b35ef27b3585795f301eb9fa210eae4f06485050 Mon Sep 17 00:00:00 2001
From: Eric Niebler decltype(boost::declval<F>()(boost::declval<T1>(),
boost::declval<T2>(), ...,
- boost::declval<TN>())), as in the
+ boost::declval<TN>()))
, as in the
following example.