In namespace std, the following names are reserved for previous standardization:
auto_ptr,
binary_function,
bind1st,
bind2nd,
binder1st,
binder2nd,
const_mem_fun1_ref_t,
const_mem_fun1_t,
const_mem_fun_ref_t,
const_mem_fun_t,
get_unexpected,
mem_fun1_ref_t,
mem_fun1_t,
mem_fun_ref_t,
mem_fun_ref,
mem_fun_t,
mem_fun,
pointer_to_binary_function,
pointer_to_unary_function,
ptr_fun,
random_shuffle,
set_unexpected,
unary_function,
unexpected,
and
unexpected_handler.