fed4e3a6eb
When checking if the constraint uses any enclosing template parameters for [temp.friend]p9, if a containing record is used as argument, we assume that the constraint depends on enclosing template parameters without checking if the record is templated. The reproducer from the bug is included as a test case. Fixes #71595
35 lines
660 B
C++
35 lines
660 B
C++
// RUN: %clang_cc1 -std=c++20 -verify %s
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template<class T, class U>
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concept C = true;
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class non_temp {
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template<C<non_temp> T>
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friend void f();
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non_temp();
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};
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template<C<non_temp> T>
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void f() {
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auto v = non_temp();
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}
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template<class A>
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class temp {
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template<C<temp> T>
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friend void g();
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temp(); // expected-note {{implicitly declared private here}}
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};
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template<C<temp<int>> T>
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void g() {
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auto v = temp<T>(); // expected-error {{calling a private constructor of class 'temp<int>'}}
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}
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void h() {
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f<int>();
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g<int>(); // expected-note {{in instantiation of function template specialization 'g<int>' requested here}}
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}
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