Subject: [boost] [spirit-x3]What's use case for x3::variant<OnlyOneComponent>?
From: Larry Evans (cppljevans_at_[hidden])
Date: 2018-01-28 22:17:57
doesn't mention a unary variant:
and the comments in:
indicates variant<T> is collapsed to T, why isn't the x3::variant here:
template <typename L, typename R, typename ...Types>
template <typename ...Types>
which allows sizeof...(Types)==0 instead of the minimum
size of 2? That would disallow the primary and factor
which make no sense because, for example, primary_def is *not*
an alternative parser.
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