Concept requiring formattingMode, id, name, and nameLength accessors.
Declared in <bdlar_fieldinfo.h>
template<class t_TYPE>
concept FieldInfo = requires (t_TYPE object)
{
{ object.formattingMode() } -> bsl::convertible_to<int>;
{ object.id() } -> bsl::convertible_to<int>;
{ object.name() } -> bsl::convertible_to<const char *>;
{ object.nameLength() } -> bsl::convertible_to<int>;
};