108 lines
4.1 KiB
C++
108 lines
4.1 KiB
C++
// =====================================================================================================================
|
|
// fennec, a free and open source game engine
|
|
// Copyright © 2025 Medusa Slockbower
|
|
//
|
|
// This program is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU General Public License as published by
|
|
// the Free Software Foundation, either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// This program is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU General Public License
|
|
// along with this program. If not, see <https://www.gnu.org/licenses/>.
|
|
// =====================================================================================================================
|
|
|
|
///
|
|
/// \file vector_traits.h
|
|
/// \brief
|
|
///
|
|
///
|
|
/// \details this header implements functions to test vector types at compile time
|
|
/// \author Medusa Slockbower
|
|
///
|
|
/// \copyright Copyright © 2025 Medusa Slockbower ([GPLv3](https://www.gnu.org/licenses/gpl-3.0.en.html))
|
|
///
|
|
///
|
|
|
|
#ifndef FENNEC_MATH_VECTOR_TRAITS_H
|
|
#define FENNEC_MATH_VECTOR_TRAITS_H
|
|
|
|
///
|
|
/// \page fennec_math_vector_traits Vector Traits
|
|
///
|
|
/// \brief Part of the fennec math library. This header defines structures for metaprogramming with vectors.
|
|
///
|
|
/// \code #include <fennec/math/vector_traits.h> \endcode
|
|
///
|
|
///
|
|
/// <table width="100%" class="fieldtable" id="table_fennec_math_ext_constants">
|
|
/// <tr><th style="vertical-align: top">Syntax
|
|
/// <th style="vertical-align: top">Description
|
|
/// <tr><td width="50%" style="vertical-align: top"> <br>
|
|
/// \ref fennec::is_vector "is_vector<TypeT>::value"<br>
|
|
/// \ref fennec::is_vector_v "is_vector_v<TypeT>"
|
|
/// <td width="50%" style="vertical-align: top">
|
|
/// \copydetails fennec::is_vector
|
|
///
|
|
/// <tr><td width="50%" style="vertical-align: top"> <br>
|
|
/// \ref fennec::component_count "component_count<TypeT>::value"<br>
|
|
/// \ref fennec::component_count_v "component_count_v<TypeT>"
|
|
/// <td width="50%" style="vertical-align: top">
|
|
/// \copydetails fennec::component_count
|
|
///
|
|
/// <tr><td width="50%" style="vertical-align: top"> <br>
|
|
/// \ref fennec::total_component_count "total_component_count<TypeT>::value"<br>
|
|
/// \ref fennec::total_component_count_v "total_component_count_v<TypeT>"
|
|
/// <td width="50%" style="vertical-align: top">
|
|
/// \copydetails fennec::total_component_count
|
|
///
|
|
/// </table>
|
|
///
|
|
|
|
#include <fennec/math/detail/_vector_traits.h>
|
|
|
|
namespace fennec
|
|
{
|
|
|
|
///
|
|
/// \brief check if \p T is a fennec::vector type
|
|
/// \tparam T type to check
|
|
template<typename T> struct is_vector : detail::_is_vector_helper<remove_cvref_t<T>>{};
|
|
|
|
///
|
|
/// \brief shorthand for ```is_vector<T>::value```
|
|
/// \tparam T type to check
|
|
template<typename T> constexpr bool is_vector_v = is_vector<T>::value;
|
|
|
|
///
|
|
/// \brief Get the number of Components in \p T, returns 1 for types that pass ```is_arithmetic<T>```, returns \ref vector::N for \ref vector "Vector" Types, and returns 0 for all other cases
|
|
/// \tparam T type to check
|
|
template<typename T> struct component_count : detail::_component_count_helper<remove_cvref_t<T>>{};
|
|
|
|
///
|
|
/// \brief shorthand for ```component_count<T>::value```
|
|
/// \tparam T type to get the component count of
|
|
template<typename T> constexpr size_t component_count_v = component_count<T>::value;
|
|
|
|
///
|
|
/// \brief Get the total number of Components among types in \p TypesT
|
|
/// \tparam Ts types to accumulate the count of
|
|
template<typename...Ts> struct total_component_count : integral_constant<size_t, (component_count_v<Ts> + ...)>{};
|
|
|
|
// Override for empty list
|
|
template<> struct total_component_count<> : integral_constant<size_t, 0>{};
|
|
|
|
///
|
|
/// \brief shorthand for ```component_count<T>::value```
|
|
/// \tparam Ts types to accumulate the count of
|
|
template<typename...Ts> constexpr size_t total_component_count_v = total_component_count<Ts...>::value;
|
|
|
|
|
|
}
|
|
|
|
#endif // FENNEC_MATH_VECTOR_TRAITS_H
|