cpp/utility/functional
来自cppreference.com
< cpp
函数对象（Function Object）或者函子（Functor）是可以作为函数调用的对象。如果一个类定义了函数应用运算(), 那么这个类的对象就是函数对象。普通的函数和函数指针都可看作函数对象。
[编辑] The <functional> header file
| binary_function | |
| binary_negate | |
| bind1st | bind the first argument of the binary function |
| bind2nd | bind the second argument of the binary function |
| binder1st | |
| binder2nd | |
| const_mem_fun1_ref_t | |
| const_mem_fun1_t | |
| const_mem_fun_ref_t | |
| const_mem_fun_t | |
| divides | |
| equal_to | whether the first argument is equal to the second argument |
| greater | whether the first argument is greater than the second argument |
| greater_equal | whether the first argument is greater than or equal to the second argument |
| less | whether the first argument is less than the second argument |
| less_equal | whether the first argument is less than or equal to the second argument |
| logical_and | |
| logical_not | |
| logical_or | |
| mem_fun1_ref_t | |
| mem_fun1_t | |
| mem_fun | construct a functor from a member function(pointer type) |
| mem_fun_ref | construct a functor from a member function(reference type) |
| mem_fun_ref_t | |
| mem_fun_t | |
| minus | |
| modulus | |
| multiplies | |
| negate | |
| not1 | negation of a unary predicate |
| not2 | negation of a binary predicate |
| not_equal_to | |
| plus | |
| pointer_to_binary_function | |
| pointer_to_unary_function | |
| ptr_fun | construct a functor from a function pointer |
| unary_function | |
| unary_negate |
