JSON for Modern C++ 2.1.1

Deprecated List

Member nlohmann::basic_json::operator<< (basic_json &j, std::istream &i)
  This stream operator is deprecated and will be removed in a future version of the library. Please use std::istream& operator>>(std::istream&, basic_json&) instead; that is, replace calls like `j << i;` with `i >> j;`.
Member nlohmann::basic_json::operator>> (const basic_json &j, std::ostream &o)
  This stream operator is deprecated and will be removed in a future version of the library. Please use std::ostream& operator<<(std::ostream&, const basic_json&) instead; that is, replace calls like `j >> o;` with `o << j;`.