functors.hpp File Reference

This file contains set of simple useful functors or functor adapters. More...

#include "paal/utils/type_functions.hpp"
#include <boost/range/adaptor/transformed.hpp>
#include <boost/range/iterator_range.hpp>
#include <algorithm>
#include <cassert>
#include <cstddef>
#include <tuple>
#include <utility>

Go to the source code of this file.

Classes
struct	paal::utils::ignore_param
	Type that can be constructed from anything and has no other functionality. More...
struct	paal::utils::skip_functor
	Functor does nothing. More...
struct	paal::utils::return_constant_functor< T, t >
	Functor returns always the same number. The number has to be known at compile time. More...
struct	paal::utils::dynamic_return_constant_functor< T >
	Functor returns always the same number (dynamic version). More...
struct	paal::utils::identity_functor
	functor returns its argument More...
class	paal::utils::tuple_uncurry< F >
	transforms a functor taking multiple parameters into a functor taking a tuple parameter. More...
struct	paal::utils::always_false
	functor return false More...
struct	paal::utils::always_true
	functor return true More...
struct	paal::utils::return_zero_functor
	functor returns 0 More...
struct	paal::utils::return_one_functor
	functor returns 1 More...
struct	paal::utils::assert_functor
	functors calls assert(false). More...
struct	paal::utils::remove_reference
	removes reference More...
class	paal::utils::counting_functor_adaptor< Functor, CounterType >
	Counts number of calls. More...
class	paal::utils::array_to_functor< Array >
	Adapts array as function, providing operator()(). More...
struct	paal::utils::assignable_functor< Functor >
	Wrapper around a functor which adds assigmnent operator as well as default constructor. Note, this struct might be dangerous. Using this struct correctly requires the underlying functor to live at least as long as this wrapper. More...
struct	paal::utils::lift_iterator_functor< Functor >
	For given functor f, lift_iterator_functor provides operator()(Iterator iterator) which returns f(*iter). More...
struct	paal::utils::greater
	greater functor More...
struct	paal::utils::less
	less functor More...
struct	paal::utils::greater_equal
	greater_equal functor More...
struct	paal::utils::less_equal
	less_equal functor More...
struct	paal::utils::equal_to
	equal_to functor More...
struct	paal::utils::equal_to_unspecified
	TODO equivalent to c++14 equal_to<>, remove when appears. More...
struct	paal::utils::not_equal_to
	not_equal_to functor More...
struct	paal::utils::functor_to_comparator< Functor, Compare >
struct	paal::utils::scale_functor< Functor, ScaleType, ReturnType >
	Functor that scales another functor. More...
struct	paal::utils::plus
	plus More...
struct	paal::utils::minus
	minus More...
struct	paal::utils::max
	max More...
struct	paal::utils::min
	min More...
struct	paal::utils::Not
	Not. More...
struct	paal::utils::Or
	Or. More...
struct	paal::utils::And
	And. More...
struct	paal::utils::lift_binary_operator_functor< FunctorLeft, FunctorRight, Operator >
struct	paal::utils::not_functor< Functor >
	not_functor More...
struct	paal::utils::or_functor< FunctorLeft, FunctorRight >
	or_functor More...
struct	paal::utils::and_functor< FunctorLeft, FunctorRight >
	and_functor More...
struct	paal::utils::xor_functor< FunctorLeft, FunctorRight >
	xor_functor More...
struct	paal::utils::tuple_get< I >
	functor for std::tuple::get<I> More...

Namespaces
	paal
	global namespace of project.
	paal::utils
	Utils namespace.

Functions
template<typename T >
auto	paal::utils::make_dynamic_return_constant_functor (T t)
	make function for dynamic_return_constant_functor More...
template<typename F , typename G >
auto	paal::utils::compose (F f, G g)
	functor composition: x -> f(g(x)) More...
template<typename F , typename... Fs>
auto	paal::utils::compose (F f, Fs...fs)
	functor composition, variadic case More...
template<typename T >
void	paal::utils::detail::get (T t)
	necessary for ADL to work for get
template<class F >
auto	paal::utils::make_tuple_uncurry (F f)
	make for tuple_uncurry More...
template<typename CounterType = int, typename Functor >
auto	paal::utils::make_counting_functor_adaptor (Functor f, CounterType &cnt)
	make function for counting_functor_adaptor More...
template<typename Array >
auto	paal::utils::make_array_to_functor (const Array &a, int offset=0)
	make function for array_to_functor More...
template<typename Functor >
auto	paal::utils::make_assignable_functor (Functor &f)
	make function for assignable_functor More...
template<typename Functor >
auto	paal::utils::make_lift_iterator_functor (Functor f)
	make function for lift_iterator_functor More...
template<typename Functor , typename Compare = less>
auto	paal::utils::make_functor_to_comparator (Functor functor, Compare compare=Compare())
	make for functor to comparator More...
template<typename ScaleType , typename ReturnType = ScaleType, typename Functor >
auto	paal::utils::make_scale_functor (Functor f, ScaleType s)
	make for scale_functor More...
template<typename FunctorLeft , typename FunctorRight , typename Operator >
auto	paal::utils::make_lift_binary_operator_functor (FunctorLeft left, FunctorRight right, Operator op)
	make function for lift_binary_operator_functor More...
template<typename Functor >
auto	paal::utils::make_not_functor (Functor functor)
	make for Not
template<typename FunctorLeft , typename FunctorRight >
auto	paal::utils::make_or_functor (FunctorLeft left, FunctorRight right)
	make for or_functor
template<typename FunctorLeft , typename FunctorRight >
auto	paal::utils::make_and_functor (FunctorLeft left, FunctorRight right)
	make and_functor
template<typename FunctorLeft , typename FunctorRight >
auto	paal::utils::make_xor_functor (FunctorLeft left, FunctorRight right)
	make for Xor

Detailed Description

This file contains set of simple useful functors or functor adapters.

Author

Piotr Wygocki, Robert Rosolek, Andrzej Pacuk

Version

1.0

Date

2013-02-01

Definition in file functors.hpp.