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29 lines
683 B
C++
29 lines
683 B
C++
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#pragma once
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namespace chatterino::variant {
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/// Compile-time safe visitor for std and boost variants.
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///
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/// From https://en.cppreference.com/w/cpp/utility/variant/visit
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///
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/// Usage:
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///
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/// ```
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/// std::variant<int, double> v;
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/// std::visit(variant::Overloaded{
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/// [](double) { qDebug() << "double"; },
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/// [](int) { qDebug() << "int"; }
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/// }, v);
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/// ```
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template <class... Ts>
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struct Overloaded : Ts... {
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using Ts::operator()...;
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};
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// Technically, we shouldn't need this, as we're on C++ 20,
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// but not all of our compilers support CTAD for aggregates yet.
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template <class... Ts>
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Overloaded(Ts...) -> Overloaded<Ts...>;
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} // namespace chatterino::variant
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