380 lines
15 KiB
C++
380 lines
15 KiB
C++
///\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
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to use, copy, modify, merge, publish, distribute, sublicense, and / or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions :
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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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
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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,
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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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#if 0
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#error THIS HEADER IS A GENERATOR. DO NOT INCLUDE.
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#endif
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//***************************************************************************
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// THIS FILE HAS BEEN AUTO GENERATED. DO NOT EDIT THIS FILE.
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//***************************************************************************
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//***************************************************************************
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// To generate to header file, run this at the command line.
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// Note: You will need Python and COG installed.
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//
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// python -m cogapp -d -e -olargest.h -DNTypes=<n> largest_generator.h
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// Where <n> is the number of types to support.
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//
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// e.g.
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// To generate handlers for up to 16 types...
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// python -m cogapp -d -e -olargest.h -DNTypes=16 largest_generator.h
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//
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// See generate.bat
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//***************************************************************************
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#ifndef ETL_LARGEST_INCLUDED
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#define ETL_LARGEST_INCLUDED
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///\defgroup largest largest
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///\ingroup utilities
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#include "platform.h"
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#include "type_traits.h"
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#include "smallest.h"
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#include "static_assert.h"
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namespace etl
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{
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#if ETL_USING_CPP11 && !defined(ETL_LARGEST_TYPE_FORCE_CPP03_IMPLEMENTATION)
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//***************************************************************************
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/// Template to determine the largest type and size.
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/// Defines 'value_type' which is the type of the largest parameter.
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/// Defines 'size' which is the size of the largest parameter.
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///\ingroup largest
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//***************************************************************************
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template <typename T1, typename... TRest>
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class largest_type
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{
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private:
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// Define 'largest_other' as 'largest_type' with all but the first parameter.
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using largest_other = typename largest_type<TRest...>::type;
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public:
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// Set 'type' to be the largest of the first parameter and any of the others.
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// This is recursive.
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using type = typename etl::conditional<(etl::size_of<T1>::value > etl::size_of<largest_other>::value), // Boolean
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T1, // TrueType
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largest_other> // FalseType
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::type; // The largest type of the two.
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// The size of the largest type.
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enum
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{
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size = etl::size_of<type>::value
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};
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};
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//***************************************************************************
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// Specialisation for one template parameter.
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//***************************************************************************
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template <typename T1>
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class largest_type<T1>
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{
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public:
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using type = T1;
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enum
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{
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size = etl::size_of<type>::value
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};
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};
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#if ETL_USING_CPP11
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template <typename... T>
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using largest_type_t = typename largest_type<T...>::type;
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#endif
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#if ETL_USING_CPP17
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template <typename... T>
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constexpr size_t largest_type_v = largest_type<T...>::size;
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#endif
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#else
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//***************************************************************************
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/// Template to determine the largest type and size.
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/// Supports up to 16 types.
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/// Defines 'value_type' which is the type of the largest parameter.
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/// Defines 'size' which is the size of the largest parameter.
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///\ingroup largest
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//***************************************************************************
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template <typename T1, typename T2 = void, typename T3 = void, typename T4 = void,
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typename T5 = void, typename T6 = void, typename T7 = void, typename T8 = void,
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typename T9 = void, typename T10 = void, typename T11 = void, typename T12 = void,
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typename T13 = void, typename T14 = void, typename T15 = void, typename T16 = void>
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struct largest_type
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{
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// Define 'largest_other' as 'largest_type' with all but the first parameter.
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typedef typename largest_type<T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16>::type largest_other;
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// Set 'type' to be the largest of the first parameter and any of the others.
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// This is recursive.
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typedef typename etl::conditional<(sizeof(T1) > sizeof(largest_other)), // Boolean
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T1, // TrueType
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largest_other> // FalseType
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::type type; // The largest type of the two.
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// The size of the largest type.
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enum
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{
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size = sizeof(type)
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};
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};
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//***************************************************************************
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// Specialisation for one template parameter.
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//***************************************************************************
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template <typename T1>
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struct largest_type<T1, void, void, void, void, void, void, void,
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void, void, void, void, void, void, void, void>
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{
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typedef T1 type;
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enum
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{
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size = sizeof(type)
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};
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};
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#endif
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#if ETL_USING_CPP11 && !defined(ETL_LARGEST_ALIGNMENT_FORCE_CPP03_IMPLEMENTATION)
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//***************************************************************************
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/// Template to determine the largest alignment.
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/// Defines <b>value</b> which is the largest alignment of all the parameters.
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///\ingroup largest
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//***************************************************************************
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template <typename T1, typename... TRest>
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struct largest_alignment
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{
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// Define 'largest_other' as 'largest_type' with all but the first parameter.
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using largest_other = typename largest_alignment<TRest...>::type;
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// Set 'type' to be the largest of the first parameter and any of the others.
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// This is recursive.
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using type = typename etl::conditional<(etl::alignment_of<T1>::value > etl::alignment_of<largest_other>::value), // Boolean
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T1, // TrueType
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largest_other> // FalseType
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::type; // The largest type of the two.
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// The largest alignment.
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enum
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{
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value = etl::alignment_of<type>::value
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};
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};
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//***************************************************************************
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// Specialisation for one template parameter.
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//***************************************************************************
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template <typename T1>
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struct largest_alignment<T1>
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{
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typedef T1 type;
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enum
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{
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value = etl::alignment_of<type>::value
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};
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};
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#if ETL_USING_CPP17
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template <typename... T>
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inline constexpr size_t largest_alignment_v = largest_alignment<T...>::value;
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#endif
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#else
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//***************************************************************************
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/// Template to determine the largest alignment.
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/// Supports up to 16 types.
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/// Defines <b>value</b> which is the largest alignment of all the parameters.
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///\ingroup largest
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//***************************************************************************
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template <typename T1, typename T2 = void, typename T3 = void, typename T4 = void,
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typename T5 = void, typename T6 = void, typename T7 = void, typename T8 = void,
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typename T9 = void, typename T10 = void, typename T11 = void, typename T12 = void,
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typename T13 = void, typename T14 = void, typename T15 = void, typename T16 = void>
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struct largest_alignment
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{
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// Define 'largest_other' as 'largest_type' with all but the first parameter.
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typedef typename largest_alignment<T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16>::type largest_other;
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// Set 'type' to be the largest of the first parameter and any of the others.
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// This is recursive.
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typedef typename etl::conditional<(etl::alignment_of<T1>::value > etl::alignment_of<largest_other>::value), // Boolean
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T1, // TrueType
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largest_other> // FalseType
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::type type; // The largest type of the two.
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// The largest alignment.
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enum
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{
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value = etl::alignment_of<type>::value
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};
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};
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//***************************************************************************
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// Specialisation for one template parameter.
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//***************************************************************************
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template <typename T1>
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struct largest_alignment<T1, void, void, void, void, void, void, void,
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void, void, void, void, void, void, void, void>
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{
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typedef T1 type;
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enum
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{
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value = etl::alignment_of<type>::value
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};
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};
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#endif
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//***************************************************************************
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/// Defines a type that is as larger or larger than the specified type.
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/// Will return the specified type is there is not a larger type.
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///\\ingroup largest
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//***************************************************************************
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template <typename T>
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struct larger_int_type
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{
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ETL_STATIC_ASSERT(etl::is_integral<T>::value, "Must be an integral type");
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typedef typename etl::smallest_int_for_bits<etl::integral_limits<typename etl::make_signed<T>::type>::bits + 1>::type type;
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};
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#if ETL_USING_CPP11
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template <typename T>
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using larger_int_type_t = typename larger_int_type<T>::type;
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#endif
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//***************************************************************************
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/// Defines a type that is as larger or larger than the specified type.
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/// Will return the specified type is there is not a larger type.
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///\ingroup largest
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//***************************************************************************
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template <typename T>
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struct larger_uint_type
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{
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ETL_STATIC_ASSERT(etl::is_integral<T>::value, "Must be an integral type");
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typedef typename etl::smallest_uint_for_bits<etl::integral_limits<typename etl::make_unsigned<T>::type>::bits + 1>::type type;
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};
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#if ETL_USING_CPP11
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template <typename T>
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using larger_uint_type_t = typename larger_uint_type<T>::type;
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#endif
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//***************************************************************************
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/// Defines a type that is as larger or larger than the specified type.
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/// Will return the specified type is there is not a larger type.
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/// The returned type will be of the same sign.
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///\ingroup largest
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//***************************************************************************
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template <typename T, bool IS_SIGNED = etl::is_signed<T>::value>
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struct larger_type;
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template <typename T>
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struct larger_type<T, false>
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{
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ETL_STATIC_ASSERT(etl::is_integral<T>::value, "Must be an integral type");
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typedef typename etl::smallest_uint_for_bits<etl::integral_limits<T>::bits + 1>::type type;
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};
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template <typename T>
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struct larger_type<T, true>
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{
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ETL_STATIC_ASSERT(etl::is_integral<T>::value, "Must be an integral type");
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typedef typename etl::smallest_int_for_bits<etl::integral_limits<T>::bits + 1>::type type;
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};
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#if ETL_USING_CPP11
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template <typename T>
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using larger_type_t = typename larger_type<T>::type;
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#endif
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#if ETL_USING_CPP11 && !defined(ETL_LARGEST_FORCE_CPP03_IMPLEMENTATION)
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//***************************************************************************
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/// Template to determine the largest type, size and alignment.
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/// Defines <b>value</b> which is the largest type, size and alignment of all the parameters.
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///\ingroup largest
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//***************************************************************************
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template <typename... T>
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struct largest
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{
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using type = typename etl::largest_type<T...>::type;
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enum
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{
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size = etl::largest_type<T...>::size,
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alignment = etl::largest_alignment<T...>::value
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};
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};
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#if ETL_USING_CPP11
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template <typename... T>
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using largest_t = typename largest<T...>::type;
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#endif
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#if ETL_USING_CPP17
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template <typename... T>
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inline constexpr size_t largest_size = largest<T...>::size;
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#endif
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#else
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//***************************************************************************
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/// Template to determine the largest type, size and alignment.
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/// Supports up to 16 types.
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/// Defines <b>value</b> which is the largest type, size and alignment of all the parameters.
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///\ingroup largest
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//***************************************************************************
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template <typename T1, typename T2 = void, typename T3 = void, typename T4 = void,
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typename T5 = void, typename T6 = void, typename T7 = void, typename T8 = void,
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typename T9 = void, typename T10 = void, typename T11 = void, typename T12 = void,
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typename T13 = void, typename T14 = void, typename T15 = void, typename T16 = void>
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struct largest
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{
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typedef typename etl::largest_type<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16>::type type;
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enum
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{
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size = etl::largest_type<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16>::size,
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alignment = etl::largest_alignment<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16>::value
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};
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};
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#endif
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}
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#endif
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