Replace deprecated std::ptr_fun and std::mem_fun with equivalent code
Replace deprecated std::ptr_fun and std::mem_fun with equivalent code

Removed in C++17. No functionality change intended.

root-mirror/cling,root-mirror/cling,karies/cling,root-mirror/cling,karies/cling,karies/cling,root-mirror/cling,root-mirror/cling,karies/cling,karies/cling,karies/cling,root-mirror/cling