fable::schema::is_optional< T > Struct Template Reference

#include <optional.hpp>

Inheritance diagram for fable::schema::is_optional< T >:

Collaboration diagram for fable::schema::is_optional< T >:

Detailed Description

template<typename T>
struct fable::schema::is_optional< T >

Helper type trait class to use with std::enable_if and friends.

The value is_optional<T>::value is true if T is one of:

• std::optional
• boost::optional, if boost_optional.hpp is included

See also

fable/schema/boost_optional.hpp

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The documentation for this struct was generated from the following file:

• /home/docs/checkouts/readthedocs.org/user_builds/cloe/checkouts/develop/fable/include/fable/schema/optional.hpp