4. functional — Function objects

This module contains generic function objects. Some of them are inspired by the ones found in the standard library header <functional> while others are slightly different in the way they work.

4.1. Function objects

Just like the standard library, POLDER provides function objects that represent common operators. However, these classes are not templated, only their function call operators are. When possible, they are defined as alias for the equivalent void specialization in the standard library. For example, plus is defined as follows:

using plus = std::plus<>;

POLDER completes this set of function objects with the ones used to represent the missing shift and assignement operators. Here is the full list of function objects provided by POLDER:

class plus

class minus

class multiplies

class divides

class modulus

class negate

class equal_to

class not_equal_to

class greater

class less

class greater_equal

class less_equal

class logical_and

class logical_or

class logical_not

class bit_and

class bit_or

class bit_xor

class bit_not

class left_shift

class right_shift

class assign

class plus_assign

class minus_assign

class multiplies_assign

class divides_assign

class modulus_assign

class bit_and_assign

class bit_or_assign

class bit_xor_assign

class left_shift_assign

class right_shift_assign