set(CXX11_FEATURES
  cxx_alias_templates
  cxx_auto_type
  cxx_constexpr
  cxx_decltype
  cxx_decltype_auto
  cxx_final
  cxx_lambdas
  cxx_nullptr
  cxx_override)

set(CXX14_FEATURES
  ${CXX11_FEATURES}
  # cxx_aggregate_default_initializers
  cxx_alignas
  cxx_alignof
  cxx_attributes
  cxx_attribute_deprecated
  cxx_binary_literals
  cxx_contextual_conversions
  # cxx_decltype_incomplete_return_types
  cxx_default_function_template_args
  cxx_defaulted_functions
  cxx_defaulted_move_initializers
  cxx_delegating_constructors
  cxx_deleted_functions
  cxx_digit_separators
  cxx_enum_forward_declarations
  cxx_explicit_conversions
  cxx_extended_friend_declarations
  cxx_extern_templates
  cxx_func_identifier
  cxx_generalized_initializers
  cxx_generic_lambdas
  cxx_inheriting_constructors
  cxx_inline_namespaces
  cxx_lambda_init_captures
  cxx_local_type_template_args
  cxx_long_long_type
  cxx_noexcept
  cxx_nonstatic_member_init
  cxx_range_for
  cxx_raw_string_literals
  cxx_reference_qualified_functions
  # cxx_relaxed_constexpr
  cxx_return_type_deduction
  cxx_right_angle_brackets
  cxx_rvalue_references
  cxx_sizeof_member
  cxx_static_assert
  cxx_strong_enums
  cxx_thread_local
  cxx_trailing_return_types
  cxx_unicode_literals
  cxx_uniform_initialization
  cxx_unrestricted_unions
  cxx_user_literals
  # cxx_variable_templates
  cxx_variadic_macros
  cxx_variadic_templates
  cxx_template_template_parameters)
