39 lines
962 B
C++
39 lines
962 B
C++
// 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/A.cppm -emit-module-interface -o %t/A.pcm
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// RUN: %clang_cc1 -std=c++20 %t/Use.cpp -fprebuilt-module-path=%t -fsyntax-only -verify
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//--- placement.h
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namespace std {
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using size_t = decltype(sizeof(0));
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}
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void *operator new(std::size_t, void *p) { return p; }
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//--- A.cppm
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module;
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#include "placement.h"
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export module A;
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export template<class T>
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struct A {
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A(void *p) : ptr(new (p) T(43)) {}
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private:
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void *ptr;
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};
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export struct B {
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B(void *p) : ptr(new (p) int(43)) {}
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private:
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void *ptr;
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};
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//--- Use.cpp
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// expected-no-diagnostics
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import A;
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void bar(int *);
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void foo(void *ptr) {
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A<int>(nullptr); // Good. It should be OK to construct A.
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void *p = ::operator new(sizeof(int), ptr); // Bad. The function shouldn't be visible here.
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void *q = new (ptr) int(43); // Good. We don't call the placement allocation function directly.
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}
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