43 lines
1.1 KiB
C++
43 lines
1.1 KiB
C++
#ifndef BASE_CLASS_HPP
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#define BASE_CLASS_HPP
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#include <type_traits>
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namespace matador {
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/**
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* @brief Safely casts a given derived class to its base class
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*
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* @tparam B The base class type
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* @tparam D The class type of the derived class
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* @param derived The derived object
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* @return The casted object
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*/
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template < class B, class D>
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const B* base_class(const D *derived)
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{
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static_assert(!std::is_same_v<B, D>, "class B must not be of same type as class D");
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static_assert(std::is_base_of_v<B, D>, "class B must be base of class D");
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return static_cast<const B*>(derived);
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}
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/**
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* @brief Safely casts a given derived class to its base class
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*
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* @tparam B The base class type
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* @tparam D The class type of the derived class
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* @param derived The derived object
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* @return The casted object
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*/
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template < class B, class D>
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B* base_class(D *derived)
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{
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static_assert(!std::is_same_v<B, D>, "class B must not be of same type as class D");
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static_assert(std::is_base_of_v<B, D>, "class B must be base of class D");
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return static_cast<B*>(derived);
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}
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}
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#endif /* BASE_CLASS_HPP */
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