34 lines
611 B
C++
34 lines
611 B
C++
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// RUN: %clang_cc1 -std=c++20 -x c++ %s -verify -fsyntax-only
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// expected-no-diagnostics
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template <typename T0>
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concept HasMemberBegin = requires(T0 t) { t.begin(); };
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struct GetBegin {
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template <HasMemberBegin T1>
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void operator()(T1);
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};
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GetBegin begin;
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template <typename T2>
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concept Concept = requires(T2 t) { begin(t); };
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struct Subrange;
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template <typename T3>
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struct View {
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Subrange &getSubrange();
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operator bool()
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requires true;
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operator bool()
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requires requires { begin(getSubrange()); };
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void begin();
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};
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struct Subrange : View<void> {};
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static_assert(Concept<Subrange>);
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