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https://github.com/bolero-MURAKAMI/Sprout.git
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37 lines
1 KiB
C++
37 lines
1 KiB
C++
#ifndef SPROUT_VARIANT_GET_HPP
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#define SPROUT_VARIANT_GET_HPP
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#include <cstddef>
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#include <sprout/config.hpp>
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#include <sprout/tuple/tuple.hpp>
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#include <sprout/variant/variant.hpp>
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namespace sprout {
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//
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// get
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//
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template<typename U, typename... Types>
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SPROUT_CONSTEXPR U const& get(sprout::variant<Types...> const& operand) {
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return operand.template get<U>();
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}
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template<typename U, typename... Types>
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U& get(sprout::variant<Types...>& operand) {
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return operand.template get<U>();
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}
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template<std::size_t I, typename... Types>
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SPROUT_CONSTEXPR typename sprout::tuples::tuple_element<
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I,
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sprout::variant<Types...>
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>::type const& get(sprout::variant<Types...> const& operand) {
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return operand.template get_at<I>();
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}
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template<std::size_t I, typename... Types>
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typename sprout::tuples::tuple_element<
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I,
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sprout::variant<Types...>
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>::type& get(sprout::variant<Types...>& operand) {
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return operand.template get_at<I>();
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}
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} // namespace sprout
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#endif // #ifndef SPROUT_VARIANT_GET_HPP
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