9415aad6a4
Fixes a null dereference in some diagnostic issuing code. Closes https://github.com/llvm/llvm-project/issues/57370 Closes https://github.com/llvm/llvm-project/issues/58028 Reviewed By: shafik Differential Revision: https://reviews.llvm.org/D134885
25 lines
597 B
C++
25 lines
597 B
C++
// RUN: %clang_cc1 -fsyntax-only %s --std=c++17 -verify
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// This is a reduction of GH57370 and GH58028, originally appearing
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// in libstdc++'s variant code.
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struct V1 {};
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struct V2 : V1 {
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int &a;
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};
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template <class T> using void_t = void;
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template <class T> struct X { T x; };
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template <class T1, class T2, class = void> struct Variant {
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Variant() = delete; // expected-note {{deleted here}}
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};
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template <class T1, class T2>
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struct Variant<T1, T2, void_t<decltype(X<T2>{T1()})>> {};
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void f() {
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Variant<V1, V1>();
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Variant<V1, V2>(); // expected-error {{call to deleted constructor}}
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}
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