65 lines
2.6 KiB
Text
65 lines
2.6 KiB
Text
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// Tests that the implicit declared allocation functions
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// are attached to the global module fragment.
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// RUN: rm -rf %t
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// RUN: mkdir -p %t
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// RUN: split-file %s %t
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//
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// RUN: %clang_cc1 -std=c++20 %t/foo.cppm -fsyntax-only -verify
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// RUN: %clang_cc1 -std=c++20 %t/foo2.cppm -fsyntax-only -verify
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//--- foo.cppm
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export module foo;
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export void alloc_wrapper() {
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void *a = ::operator new(32);
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// [basic.stc.dynamic.general]Note2
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// The implicit declarations do not introduce the names std, std::size_t,
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// std::align_val_t, ..., However, referring to std or std::size_t or
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// std::align_val_t is ill-formed unless a standard library declaration
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// ([cstddef.syn], [new.syn], [std.modules]) of that name precedes
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// ([basic.lookup.general]) the use of that name.
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void *b = ::operator new((std::size_t)32); // expected-error {{use of undeclared identifier 'std'}}
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void *c = ::operator new((std::size_t)32, // expected-error {{use of undeclared identifier 'std'}}
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(std::align_val_t)64); // expected-error {{use of undeclared identifier 'std'}}
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::operator delete(a);
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::operator delete(b, (std::size_t)32); // expected-error {{use of undeclared identifier 'std'}}
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::operator delete(c, (std::size_t)32, // expected-error {{use of undeclared identifier 'std'}}
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(std::align_val_t)64); // expected-error {{use of undeclared identifier 'std'}}
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}
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//--- new
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namespace std {
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using size_t = decltype(sizeof(0));
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enum class align_val_t : size_t {};
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}
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[[nodiscard]] void *operator new(std::size_t);
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[[nodiscard]] void *operator new(std::size_t, std::align_val_t);
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[[nodiscard]] void *operator new[](std::size_t);
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[[nodiscard]] void *operator new[](std::size_t, std::align_val_t);
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void operator delete(void*) noexcept;
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void operator delete(void*, std::size_t) noexcept;
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void operator delete(void*, std::align_val_t) noexcept;
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void operator delete(void*, std::size_t, std::align_val_t) noexcept;
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void operator delete[](void*, std::size_t, std::align_val_t) noexcept;
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void operator delete[](void*, std::size_t) noexcept;
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void operator delete[](void*, std::align_val_t) noexcept;
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void operator delete[](void*, std::size_t, std::align_val_t) noexcept;
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//--- foo2.cppm
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// expected-no-diagnostics
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module;
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#include "new"
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export module foo2;
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export void alloc_wrapper() {
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void *a = ::operator new(32);
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void *b = ::operator new((std::size_t)32);
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void *c = ::operator new((std::size_t)32,
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(std::align_val_t)64);
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::operator delete(a);
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::operator delete(b, (std::size_t)32);
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::operator delete(c, (std::size_t)32,
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(std::align_val_t)64);
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}
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