Identify map- and vector-like objects in a VS14-compatible way

mutable-v2
Jacob Potter 2014-08-13 14:58:20 -07:00
parent d9bdd84c76
commit 7103522344
1 changed files with 3 additions and 3 deletions

View File

@ -91,14 +91,14 @@ public:
// Implicit constructor: map-like objects (std::map, std::unordered_map, etc)
template <class M, typename std::enable_if<
std::is_constructible<std::string, decltype(std::declval<M>().begin()->first)>::value
&& std::is_constructible<Json, decltype(std::declval<M>().begin()->second)>::value,
std::is_constructible<std::string, typename M::key_type>::value
&& std::is_constructible<Json, typename M::mapped_type>::value,
int>::type = 0>
Json(const M & m) : Json(object(m.begin(), m.end())) {}
// Implicit constructor: vector-like objects (std::list, std::vector, std::set, etc)
template <class V, typename std::enable_if<
std::is_constructible<Json, decltype(*std::declval<V>().begin())>::value,
std::is_constructible<Json, typename V::value_type>::value,
int>::type = 0>
Json(const V & v) : Json(array(v.begin(), v.end())) {}