add Chapter14
This commit is contained in:
Amar Mahmutbegovic
602
Chapter14/sequencer/libs/etl/include/etl/functional.h
Normal file
602
Chapter14/sequencer/libs/etl/include/etl/functional.h
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@@ -0,0 +1,602 @@
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///\file
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/******************************************************************************
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The MIT License(MIT)
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Embedded Template Library.
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https://github.com/ETLCPP/etl
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https://www.etlcpp.com
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Copyright(c) 2014 John Wellbelove
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Permission is hereby granted, free of charge, to any person obtaining a copy
|
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of this software and associated documentation files(the "Software"), to deal
|
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in the Software without restriction, including without limitation the rights
|
||||
to use, copy, modify, merge, publish, distribute, sublicense, and / or sell
|
||||
copies of the Software, and to permit persons to whom the Software is
|
||||
furnished to do so, subject to the following conditions :
|
||||
|
||||
The above copyright notice and this permission notice shall be included in all
|
||||
copies or substantial portions of the Software.
|
||||
|
||||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.IN NO EVENT SHALL THE
|
||||
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
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SOFTWARE.
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******************************************************************************/
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#ifndef ETL_FUNCTIONAL_INCLUDED
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#define ETL_FUNCTIONAL_INCLUDED
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#include "platform.h"
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#include "utility.h"
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///\defgroup functional functional
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///\ingroup utilities
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///\defgroup reference_wrapper reference_wrapper
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///\ingroup functional
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namespace etl
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{
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//***************************************************************************
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/// A definition of reference_wrapper for those that don't have C++ 0x11 support.
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///\ingroup reference
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//***************************************************************************
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template <typename T>
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class reference_wrapper
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{
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public:
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typedef T type;
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ETL_CONSTEXPR20 explicit reference_wrapper(T& t_) ETL_NOEXCEPT
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: t(&t_)
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{
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}
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ETL_CONSTEXPR20 reference_wrapper(const reference_wrapper& rhs) ETL_NOEXCEPT
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: t(rhs.t)
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{
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}
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|
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ETL_CONSTEXPR20 reference_wrapper<T>& operator = (const reference_wrapper& rhs) ETL_NOEXCEPT
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{
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t = rhs.t;
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return *this;
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}
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ETL_CONSTEXPR20 T& get() const ETL_NOEXCEPT
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{
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return *t;
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}
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ETL_CONSTEXPR20 operator T&() const ETL_NOEXCEPT
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{
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return *t;
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}
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|
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private:
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T* t;
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};
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//***************************************************************************
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template <typename T>
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reference_wrapper<T> ref(T& t)
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{
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return reference_wrapper<T>(t);
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}
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//***************************************************************************
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template <typename T>
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reference_wrapper<T> ref(reference_wrapper<T> t)
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{
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return reference_wrapper<T>(t.get());
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}
|
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|
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//***************************************************************************
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template <typename T>
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reference_wrapper<const T> cref(const T& t)
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{
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return reference_wrapper<const T>(t);
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}
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|
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//***************************************************************************
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template <typename T>
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reference_wrapper<const T> cref(reference_wrapper<T> t)
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{
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return reference_wrapper<const T>(t.get());
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}
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//***************************************************************************
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template <typename TArgumentType, typename TResultType>
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struct unary_function
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{
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typedef TArgumentType argument_type;
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typedef TResultType result_type;
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};
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//***************************************************************************
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template <typename TFirstArgumentType, typename TSecondArgumentType, typename TResultType>
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struct binary_function
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{
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typedef TFirstArgumentType first_argument_type;
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typedef TSecondArgumentType second_argument_type;
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typedef TResultType result_type;
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};
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//***************************************************************************
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template <typename T = void>
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struct less : public etl::binary_function<T, T, bool>
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{
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typedef T value_type;
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|
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ETL_CONSTEXPR bool operator()(const T &lhs, const T &rhs) const
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{
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return (lhs < rhs);
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}
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};
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|
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#if ETL_USING_CPP11
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template <>
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struct less<void> : public etl::binary_function<void, void, bool>
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{
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typedef int is_transparent;
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|
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template <typename T1, typename T2>
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constexpr auto operator()(T1&& lhs, T2&& rhs) const -> decltype(static_cast<T1&&>(lhs) < static_cast<T2&&>(rhs))
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{
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return static_cast<T1&&>(lhs) < static_cast<T2&&>(rhs);
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}
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};
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#endif
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|
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//***************************************************************************
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template <typename T = void>
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struct less_equal : public etl::binary_function<T, T, bool>
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{
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typedef T value_type;
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|
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ETL_CONSTEXPR bool operator()(const T& lhs, const T& rhs) const
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{
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return !(rhs < lhs);
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}
|
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};
|
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|
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#if ETL_USING_CPP11
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template <>
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struct less_equal<void> : public etl::binary_function<void, void, bool>
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{
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typedef int is_transparent;
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|
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template <typename T1, typename T2>
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constexpr auto operator()(T1&& lhs, T2&& rhs) const -> decltype(static_cast<T1&&>(lhs) < static_cast<T2&&>(rhs))
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{
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return !(static_cast<T1&&>(lhs) < static_cast<T2&&>(rhs));
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}
|
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};
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#endif
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|
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//***************************************************************************
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template <typename T = void>
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struct greater : public etl::binary_function<T, T, bool>
|
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{
|
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typedef T value_type;
|
||||
|
||||
ETL_CONSTEXPR bool operator()(const T &lhs, const T &rhs) const
|
||||
{
|
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return (rhs < lhs);
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}
|
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};
|
||||
|
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#if ETL_USING_CPP11
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template <>
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struct greater<void> : public etl::binary_function<void, void, bool>
|
||||
{
|
||||
typedef int is_transparent;
|
||||
|
||||
template <typename T1, typename T2>
|
||||
constexpr auto operator()(T1&& lhs, T2&& rhs) const -> decltype(static_cast<T1&&>(lhs) < static_cast<T2&&>(rhs))
|
||||
{
|
||||
return static_cast<T1&&>(rhs) < static_cast<T2&&>(lhs);
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||||
}
|
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};
|
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#endif
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|
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//***************************************************************************
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template <typename T = void>
|
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struct greater_equal : public etl::binary_function<T, T, bool>
|
||||
{
|
||||
typedef T value_type;
|
||||
|
||||
ETL_CONSTEXPR bool operator()(const T& lhs, const T& rhs) const
|
||||
{
|
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return !(lhs < rhs);
|
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}
|
||||
};
|
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|
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#if ETL_USING_CPP11
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template <>
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struct greater_equal<void> : public etl::binary_function<void, void, bool>
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{
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typedef int is_transparent;
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|
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template <typename T1, typename T2>
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constexpr auto operator()(T1&& lhs, T2&& rhs) const -> decltype(static_cast<T1&&>(lhs) < static_cast<T2&&>(rhs))
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||||
{
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return static_cast<T1&&>(rhs) < static_cast<T2&&>(lhs);
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}
|
||||
};
|
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#endif
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||||
|
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//***************************************************************************
|
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template <typename T = void>
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struct equal_to : public etl::binary_function<T, T, bool>
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{
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typedef T value_type;
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|
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ETL_CONSTEXPR bool operator()(const T &lhs, const T &rhs) const
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{
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return lhs == rhs;
|
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}
|
||||
};
|
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|
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#if ETL_USING_CPP11
|
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template <>
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struct equal_to<void> : public etl::binary_function<void, void, bool>
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{
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typedef void value_type;
|
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typedef int is_transparent;
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|
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template <typename T1, typename T2>
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constexpr auto operator()(T1&& lhs, T2&& rhs) const -> decltype(static_cast<T1&&>(lhs) < static_cast<T2&&>(rhs))
|
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{
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return static_cast<T1&&>(lhs) == static_cast<T2&&>(rhs);
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}
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};
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#endif
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|
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//***************************************************************************
|
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template <typename T = void>
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struct not_equal_to : public etl::binary_function<T, T, bool>
|
||||
{
|
||||
typedef T value_type;
|
||||
|
||||
ETL_CONSTEXPR bool operator()(const T &lhs, const T &rhs) const
|
||||
{
|
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return !(lhs == rhs);
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}
|
||||
};
|
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|
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#if ETL_USING_CPP11
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template <>
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struct not_equal_to<void> : public etl::binary_function<void, void, bool>
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||||
{
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typedef int is_transparent;
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|
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template <typename T1, typename T2>
|
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constexpr auto operator()(T1&& lhs, T2&& rhs) const -> decltype(static_cast<T1&&>(lhs) < static_cast<T2&&>(rhs))
|
||||
{
|
||||
return !(static_cast<T1&&>(lhs) == static_cast<T2&&>(rhs));
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||||
}
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||||
};
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||||
#endif
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//***************************************************************************
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template <typename TFunction>
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class binder1st : public etl::unary_function<typename TFunction::second_argument_type, typename TFunction::result_type>
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{
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protected:
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|
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TFunction operation;
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typename TFunction::first_argument_type value;
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|
||||
public:
|
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|
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binder1st(const TFunction& f, const typename TFunction::first_argument_type& v)
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: operation(f), value(v)
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||||
{
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||||
}
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|
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typename TFunction::result_type operator()(typename TFunction::second_argument_type& x) const
|
||||
{
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return operation(value, x);
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||||
}
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||||
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typename TFunction::result_type operator()(const typename TFunction::second_argument_type& x) const
|
||||
{
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return operation(value, x);
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||||
}
|
||||
};
|
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|
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template <typename F, typename T>
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binder1st<F> bind1st(const F& f, const T& x)
|
||||
{
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return binder1st<F>(f, x);
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}
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|
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//***************************************************************************
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template <typename TFunction >
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class binder2nd : public etl::unary_function<typename TFunction::first_argument_type, typename TFunction::result_type>
|
||||
{
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||||
protected:
|
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TFunction operation;
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typename TFunction::second_argument_type value;
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||||
public:
|
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binder2nd(const TFunction& f, const typename TFunction::second_argument_type& v)
|
||||
: operation(f), value(v)
|
||||
{
|
||||
}
|
||||
|
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typename TFunction::result_type operator()(typename TFunction::first_argument_type& x) const
|
||||
{
|
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return operation(x, value);
|
||||
}
|
||||
|
||||
typename TFunction::result_type operator()(const typename TFunction::first_argument_type& x) const
|
||||
{
|
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return operation(x, value);
|
||||
}
|
||||
};
|
||||
|
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template <typename F, typename T>
|
||||
binder2nd<F> bind2nd(const F& f, const T& x)
|
||||
{
|
||||
return binder2nd<F>(f, x);
|
||||
}
|
||||
|
||||
//***************************************************************************
|
||||
template <typename T = void>
|
||||
struct plus
|
||||
{
|
||||
typedef T first_argument_type;
|
||||
typedef T second_argument_type;
|
||||
typedef T result_type;
|
||||
|
||||
ETL_CONSTEXPR T operator()(const T& lhs, const T& rhs) const
|
||||
{
|
||||
return lhs + rhs;
|
||||
}
|
||||
};
|
||||
|
||||
//***************************************************************************
|
||||
template <typename T = void>
|
||||
struct minus
|
||||
{
|
||||
typedef T first_argument_type;
|
||||
typedef T second_argument_type;
|
||||
typedef T result_type;
|
||||
|
||||
ETL_CONSTEXPR T operator()(const T& lhs, const T& rhs) const
|
||||
{
|
||||
return lhs - rhs;
|
||||
}
|
||||
};
|
||||
|
||||
//***************************************************************************
|
||||
template <typename T = void>
|
||||
struct negate
|
||||
{
|
||||
typedef T argument_type;
|
||||
typedef T result_type;
|
||||
|
||||
ETL_CONSTEXPR T operator()(const T& lhs) const
|
||||
{
|
||||
return -lhs;
|
||||
}
|
||||
};
|
||||
|
||||
//***************************************************************************
|
||||
template <typename T = void>
|
||||
struct multiplies
|
||||
{
|
||||
typedef T first_argument_type;
|
||||
typedef T second_argument_type;
|
||||
typedef T result_type;
|
||||
|
||||
ETL_CONSTEXPR T operator()(const T& lhs, const T& rhs) const
|
||||
{
|
||||
return lhs * rhs;
|
||||
}
|
||||
};
|
||||
|
||||
//***************************************************************************
|
||||
template <typename T = void>
|
||||
struct divides
|
||||
{
|
||||
typedef T first_argument_type;
|
||||
typedef T second_argument_type;
|
||||
typedef T result_type;
|
||||
|
||||
ETL_CONSTEXPR T operator()(const T& lhs, const T& rhs) const
|
||||
{
|
||||
return lhs / rhs;
|
||||
}
|
||||
};
|
||||
|
||||
//***************************************************************************
|
||||
template <typename T = void>
|
||||
struct modulus
|
||||
{
|
||||
typedef T first_argument_type;
|
||||
typedef T second_argument_type;
|
||||
typedef T result_type;
|
||||
|
||||
ETL_CONSTEXPR T operator()(const T& lhs, const T& rhs) const
|
||||
{
|
||||
return lhs % rhs;
|
||||
}
|
||||
};
|
||||
|
||||
//***************************************************************************
|
||||
template <typename T = void>
|
||||
struct logical_and
|
||||
{
|
||||
typedef T first_argument_type;
|
||||
typedef T second_argument_type;
|
||||
typedef T result_type;
|
||||
|
||||
ETL_CONSTEXPR T operator()(const T& lhs, const T& rhs) const
|
||||
{
|
||||
return lhs && rhs;
|
||||
}
|
||||
};
|
||||
|
||||
//***************************************************************************
|
||||
template <typename T = void>
|
||||
struct logical_or
|
||||
{
|
||||
typedef T first_argument_type;
|
||||
typedef T second_argument_type;
|
||||
typedef T result_type;
|
||||
|
||||
ETL_CONSTEXPR T operator()(const T& lhs, const T& rhs) const
|
||||
{
|
||||
return lhs || rhs;
|
||||
}
|
||||
};
|
||||
|
||||
//***************************************************************************
|
||||
template <typename T = void>
|
||||
struct logical_not
|
||||
{
|
||||
typedef T first_argument_type;
|
||||
typedef T second_argument_type;
|
||||
typedef T result_type;
|
||||
|
||||
ETL_CONSTEXPR T operator()(const T& lhs) const
|
||||
{
|
||||
return !lhs;
|
||||
}
|
||||
};
|
||||
|
||||
//***************************************************************************
|
||||
template <typename T = void>
|
||||
struct bit_and
|
||||
{
|
||||
typedef T first_argument_type;
|
||||
typedef T second_argument_type;
|
||||
typedef T result_type;
|
||||
|
||||
ETL_CONSTEXPR T operator()(const T& lhs, const T& rhs) const
|
||||
{
|
||||
return lhs & rhs;
|
||||
}
|
||||
};
|
||||
|
||||
//***************************************************************************
|
||||
template <typename T = void>
|
||||
struct bit_or
|
||||
{
|
||||
typedef T first_argument_type;
|
||||
typedef T second_argument_type;
|
||||
typedef T result_type;
|
||||
|
||||
ETL_CONSTEXPR T operator()(const T& lhs, const T& rhs) const
|
||||
{
|
||||
return lhs | rhs;
|
||||
}
|
||||
};
|
||||
|
||||
//***************************************************************************
|
||||
template <typename T = void>
|
||||
struct bit_xor
|
||||
{
|
||||
typedef T first_argument_type;
|
||||
typedef T second_argument_type;
|
||||
typedef T result_type;
|
||||
|
||||
ETL_CONSTEXPR T operator()(const T& lhs, const T& rhs) const
|
||||
{
|
||||
return lhs ^ rhs;
|
||||
}
|
||||
};
|
||||
|
||||
//***************************************************************************
|
||||
template <typename T = void>
|
||||
struct bit_not
|
||||
{
|
||||
typedef T first_argument_type;
|
||||
typedef T second_argument_type;
|
||||
typedef T result_type;
|
||||
|
||||
ETL_CONSTEXPR T operator()(const T& lhs) const
|
||||
{
|
||||
return ~lhs;
|
||||
}
|
||||
};
|
||||
|
||||
#if ETL_USING_CPP11
|
||||
namespace private_functional
|
||||
{
|
||||
//***************************************************************************
|
||||
template<typename TReturnType, typename TClassType, typename... TArgs>
|
||||
class mem_fn_impl
|
||||
{
|
||||
public:
|
||||
|
||||
typedef TReturnType(TClassType::* MemberFunctionType)(TArgs...);
|
||||
|
||||
ETL_CONSTEXPR mem_fn_impl(MemberFunctionType member_function_)
|
||||
: member_function(member_function_)
|
||||
{
|
||||
}
|
||||
|
||||
ETL_CONSTEXPR TReturnType operator()(TClassType& instance, TArgs... args) const
|
||||
{
|
||||
return (instance.*member_function)(etl::forward<TArgs>(args)...);
|
||||
}
|
||||
|
||||
private:
|
||||
|
||||
MemberFunctionType member_function;
|
||||
};
|
||||
|
||||
//***************************************************************************
|
||||
template<typename TReturnType, typename TClassType, typename... TArgs>
|
||||
class const_mem_fn_impl
|
||||
{
|
||||
public:
|
||||
|
||||
typedef TReturnType(TClassType::* MemberFunctionType)(TArgs...) const;
|
||||
|
||||
ETL_CONSTEXPR const_mem_fn_impl(MemberFunctionType member_function_)
|
||||
: member_function(member_function_)
|
||||
{
|
||||
}
|
||||
|
||||
ETL_CONSTEXPR TReturnType operator()(const TClassType& instance, TArgs... args) const
|
||||
{
|
||||
return (instance.*member_function)(etl::forward<TArgs>(args)...);
|
||||
}
|
||||
|
||||
private:
|
||||
|
||||
MemberFunctionType member_function;
|
||||
};
|
||||
}
|
||||
|
||||
//***************************************************************************
|
||||
template<typename TReturnType, typename TClassType, typename... TArgs>
|
||||
ETL_CONSTEXPR
|
||||
private_functional::mem_fn_impl<TReturnType, TClassType, TArgs...> mem_fn(TReturnType(TClassType::* member_function)(TArgs...))
|
||||
{
|
||||
return private_functional::mem_fn_impl<TReturnType, TClassType, TArgs...>(member_function);
|
||||
}
|
||||
|
||||
//***************************************************************************
|
||||
template<typename TReturnType, typename TClassType, typename... TArgs>
|
||||
ETL_CONSTEXPR
|
||||
private_functional::const_mem_fn_impl<TReturnType, TClassType, TArgs...> mem_fn(TReturnType(TClassType::* member_function)(TArgs...) const)
|
||||
{
|
||||
return private_functional::const_mem_fn_impl<TReturnType, TClassType, TArgs...>(member_function);
|
||||
}
|
||||
#endif
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
Reference in New Issue
Block a user