tuple_category

Conversion category for tuples.

Synopsis

Defined in header <boost/json/conversion.hpp>.

struct tuple_category;

Description

Tuples are represented in JSON as arrays.

By default a type T is considered a tuple if std::tuple_size<T>::value is a positive number.

Users can specialize conversion_category_for for their own types if they want them to be treated like tuples. For example:

namespace boost {
namespace json {

template <>
struct conversion_category_for<your::tuple>
{
    using type = tuple_category;
};

} // namespace boost
} // namespace json

Matching Types

std::tuple, std::pair.

Convenience header <boost/json.hpp>.

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