basic_json::object_comparator_t¶
// until C++14
using object_comparator_t = std::less<StringType>;
// since C++14
using object_comparator_t = std::less<>;
The comparator used in object_t
.
When C++14 is detected, a transparent com parator is used which, when combined with perfect forwarding on find() and count() calls, prevents unnecessary string construction.
Version history¶
- Unknown.