Akim Demaille e76a934853 c++: don't define variant<S>, directly define semantic_type ...

Instead of defining yy::variant<S> and then alias
yy::parser::semantic_type to variant<sizeof (union_type)>, directly
define yy::parser::semantic_type.

This model is more appropriate if we want to sit the storage on top of
unions in C++11.

* data/variant.hh (b4_variant_define): Specialize and inline the
definition into...
(b4_value_type_declare): Here.
Define union_type here.
* data/lalr1.cc: Adjust.

2018-12-03 05:40:46 +01:00

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