51 lines
1.4 KiB
C++
51 lines
1.4 KiB
C++
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// RUN: %clang_cc1 -pedantic -std=c++1y -include %s -include %s -verify %s
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// RUN: %clang_cc1 -pedantic -std=c++1y -emit-pch -o %t.1 %s
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// RUN: %clang_cc1 -pedantic -std=c++1y -include-pch %t.1 -emit-pch -o %t.2 %s
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// RUN: %clang_cc1 -pedantic -std=c++1y -include-pch %t.2 -verify %s
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// RUN: %clang_cc1 -pedantic -std=c++1y -emit-pch -fpch-instantiate-templates -o %t.1 %s
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// RUN: %clang_cc1 -pedantic -std=c++1y -include-pch %t.1 -emit-pch -fpch-instantiate-templates -o %t.2 %s
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// RUN: %clang_cc1 -pedantic -std=c++1y -include-pch %t.2 -verify %s
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#ifndef HEADER_1
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#define HEADER_1
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struct A {
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int x;
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int y = 3;
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int z = x + y;
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};
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template<typename T> constexpr A make() { return A {}; }
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template<typename T> constexpr A make(T t) { return A { t }; }
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struct B {
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int z1, z2 = z1;
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constexpr B(int k) : z1(k) {}
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};
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template<typename T> struct C {
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constexpr C() {}
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T c = T();
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struct U {};
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};
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// Instantiate C<int> but not the default initializer.
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C<int>::U ciu;
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#elif !defined(HEADER_2)
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#define HEADER_2
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// Instantiate the default initializer now, should create an update record.
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C<int> ci;
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#else
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static_assert(A{}.z == 3, "");
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static_assert(A{1}.z == 4, "");
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static_assert(A{.y = 5}.z == 5, ""); // expected-warning {{C++20}}
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static_assert(A{3, .y = 1}.z == 4, ""); // expected-warning {{C99}} expected-note {{here}}
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static_assert(make<int>().z == 3, "");
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static_assert(make<int>(12).z == 15, "");
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static_assert(C<int>().c == 0, "");
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#endif
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