41 lines
907 B
C++
41 lines
907 B
C++
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// RUN: %clang_cc1 -std=c++20 -include %s %s -o %t
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// RUN: %clang_cc1 -std=c++20 -emit-pch %s -o %t
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// RUN: %clang_cc1 -std=c++20 -include-pch %t -verify %s
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// expected-no-diagnostics
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#ifndef HEADER
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#define HEADER
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int g;
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struct A { union { int n, m; }; int *p; int A::*q; char buffer[32]; };
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template<A a> constexpr const A &get = a;
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constexpr const A &v = get<A{}>;
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constexpr const A &w = get<A{1, &g, &A::n, "hello"}>;
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#else /*included pch*/
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template<A a> constexpr const A &get2 = a;
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constexpr const A &v2 = get2<A{}>;
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constexpr const A &w2 = get2<A{1, &g, &A::n, "hello\0\0\0\0\0"}>;
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static_assert(&v == &v2);
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static_assert(&w == &w2);
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static_assert(&v != &w);
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static_assert(&v2 != &w);
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static_assert(&v != &w2);
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static_assert(&v2 != &w2);
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constexpr const A &v3 = get2<A{.n = 0}>;
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constexpr const A &x = get2<A{.m = 0}>;
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static_assert(&v == &v3);
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static_assert(&v != &x);
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#endif // HEADER
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