Deprecated List

Module negators
  Deprecated in C++17, no longer in the standard since C++20. Use `not_fn` instead.
Module pointer_adaptors
  Deprecated in C++11, no longer in the standard since C++17.
Module ptrmem_adaptors
  Deprecated in C++11, no longer in the standard since C++17. Use `mem_fn` instead.
Struct std::__is_nullptr_t< _Tp >
  Use `is_null_pointer` instead.
Struct std::binary_function< _Arg1, _Arg2, _Result >
  Deprecated in C++11, no longer in the standard since C++17.
Struct std::is_literal_type< _Tp >
  Deprecated in C++20. The idea of a literal type isn't useful.
Struct std::is_pod< _Tp >
  Use `is_standard_layout && is_trivial` instead.
Struct std::unary_function< _Arg, _Result >
  Deprecated in C++11, no longer in the standard since C++17.