path_category

`path_category`

Conversion category for filesystem paths.

using path_category = std::integral_constant< conversion_category, conversion_category::path >;

Paths are represented in JSON as strings.

By default a type T is considered a path if

given t, a glvalue of type T; and
given It, the type denoted by decltype(std::begin(t)), std::iterator_traits<It>::iterator_category is well-formed and denotes a type; and
std::iterator_traits<It>::value_type is T; and
T::value_type is well-formed and denotes a type; and
T::string_type is well-formed, denotes a type, and is an alias for std::basic_string< T::value_type >.

Users can specialize conversion_category_of for their own types if they don’t want them to be treated like filesystem paths. For example:

namespace boost { namespace json {

template <>
struct conversion_category_of<your::path> : path_category
{ };

} }

Convenience header <boost/json.hpp>.