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fix variant output

This commit is contained in:
Sébastien Loriot 2023-06-29 18:48:15 +02:00
parent a32483d885
commit b1465645ad
1 changed files with 9 additions and 5 deletions
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14
Stream_support/include/CGAL/IO/io.h
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@ -191,13 +191,15 @@ public:
template <class T, class F> template <class T, class F>
class Output_rep<std::optional<T>, F> class Output_rep<std::optional<T>, F>
{ {
const std::optional<T>& t; const std::optional<T>& t;
public: public:
Output_rep( const std::optional<T>& tt) : t(tt) {} Output_rep( const std::optional<T>& tt) : t(tt) {}
std::ostream& operator()( std::ostream& os) const { std::ostream& operator()( std::ostream& os) const
{
if (t==std::nullopt) return (os << "--"); if (t==std::nullopt) return (os << "--");
return (os << t.value()); } return (os << t.value());
}
}; };
template <class ... T, class F> template <class ... T, class F>
@ -207,8 +209,10 @@ class Output_rep<std::variant<T...>, F>
public: public:
Output_rep( const std::variant<T...>& tt) : t(tt) {} Output_rep( const std::variant<T...>& tt) : t(tt) {}
std::ostream& operator()( std::ostream& os) const { std::ostream& operator()( std::ostream& os) const
return (os << "--"); {
std::visit([&os](auto&& v) { os << v; }, t);
return os;
} }
}; };