VCCC  2024.05
VisualCamp Common C++ library
disjunction.hpp
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1 # /*
2 # * Created by YongGyu Lee on 2021/09/03.
3 # */
4 #
5 # ifndef VCCC_TYPE_TRAITS_DISJUNCTION_HPP
6 # define VCCC_TYPE_TRAITS_DISJUNCTION_HPP
7 #
8 # include <type_traits>
9 
10 namespace vccc {
11 
16 
21 template<typename ...B>
22 struct disjunction;
23 
26 
27 template<>
28 struct disjunction<> : std::false_type {};
29 
30 template<typename B1>
31 struct disjunction<B1> : B1 {};
32 
33 template<typename B1, typename ...BN>
34 struct disjunction<B1, BN...> : std::conditional_t<bool(B1::value), B1, disjunction<BN...>> {};
35 
36 
37 } // namespace vccc
38 
39 # endif // VCCC_TYPE_TRAITS_DISJUNCTION_HPP
vccc
Definition: directory.h:12
vccc::disjunction
Definition: disjunction.hpp:22