forked from OSchip/llvm-project
82 lines
3.1 KiB
C++
82 lines
3.1 KiB
C++
// RUN: %check_clang_tidy %s misc-new-delete-overloads %t -- -- -std=c++14
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typedef decltype(sizeof(int)) size_t;
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struct S {
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// CHECK-MESSAGES: :[[@LINE+1]]:9: warning: declaration of 'operator new' has no matching declaration of 'operator delete' at the same scope [misc-new-delete-overloads]
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void *operator new(size_t size) noexcept;
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// CHECK-MESSAGES: :[[@LINE+1]]:9: warning: declaration of 'operator new[]' has no matching declaration of 'operator delete[]' at the same scope
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void *operator new[](size_t size) noexcept;
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};
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// CHECK-MESSAGES: :[[@LINE+1]]:7: warning: declaration of 'operator new' has no matching declaration of 'operator delete' at the same scope
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void *operator new(size_t size) noexcept(false);
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struct T {
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// Sized deallocations are not enabled by default, and so this new/delete pair
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// does not match. However, we expect only one warning, for the new, because
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// the operator delete is a placement delete and we do not warn on mismatching
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// placement operations.
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// CHECK-MESSAGES: :[[@LINE+1]]:9: warning: declaration of 'operator new' has no matching declaration of 'operator delete' at the same scope
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void *operator new(size_t size) noexcept;
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void operator delete(void *ptr, size_t) noexcept; // ok only if sized deallocation is enabled
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};
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struct U {
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void *operator new(size_t size) noexcept;
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void operator delete(void *ptr) noexcept;
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void *operator new[](size_t) noexcept;
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void operator delete[](void *) noexcept;
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};
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struct Z {
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// CHECK-MESSAGES: :[[@LINE+1]]:8: warning: declaration of 'operator delete' has no matching declaration of 'operator new' at the same scope
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void operator delete(void *ptr) noexcept;
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// CHECK-MESSAGES: :[[@LINE+1]]:8: warning: declaration of 'operator delete[]' has no matching declaration of 'operator new[]' at the same scope
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void operator delete[](void *ptr) noexcept;
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};
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struct A {
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void *operator new(size_t size, Z) noexcept; // ok, placement new
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};
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struct B {
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void operator delete(void *ptr, A) noexcept; // ok, placement delete
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};
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// It is okay to have a class with an inaccessible free store operator.
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struct C {
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void *operator new(size_t, A) noexcept; // ok, placement new
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private:
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void operator delete(void *) noexcept;
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};
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// It is also okay to have a class with a delete free store operator.
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struct D {
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void *operator new(size_t, A) noexcept; // ok, placement new
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void operator delete(void *) noexcept = delete;
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};
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struct E : U {
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void *operator new(size_t) noexcept; // okay, we inherit operator delete from U
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};
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struct F : S {
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// CHECK-MESSAGES: :[[@LINE+1]]:9: warning: declaration of 'operator new' has no matching declaration of 'operator delete' at the same scope
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void *operator new(size_t) noexcept;
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};
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class G {
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void operator delete(void *) noexcept;
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};
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struct H : G {
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// CHECK-MESSAGES: :[[@LINE+1]]:9: warning: declaration of 'operator new' has no matching declaration of 'operator delete' at the same scope
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void *operator new(size_t) noexcept; // base class operator is inaccessible
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};
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template <typename Base> struct Derived : Base {
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void operator delete(void *);
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};
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