72 lines · cpp
1// RUN: %check_clang_tidy %s misc-new-delete-overloads %t2 3typedef decltype(sizeof(int)) size_t;4 5struct S {6 // 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]7 void *operator new(size_t size) noexcept;8 // CHECK-MESSAGES: :[[@LINE+1]]:9: warning: declaration of 'operator new[]' has no matching declaration of 'operator delete[]' at the same scope9 void *operator new[](size_t size) noexcept;10};11 12// CHECK-MESSAGES: :[[@LINE+1]]:7: warning: declaration of 'operator new' has no matching declaration of 'operator delete' at the same scope13void *operator new(size_t size) noexcept(false);14 15struct U {16 void *operator new(size_t size) noexcept;17 void operator delete(void *ptr) noexcept;18 19 void *operator new[](size_t) noexcept;20 void operator delete[](void *) noexcept;21};22 23struct Z {24 // CHECK-MESSAGES: :[[@LINE+1]]:8: warning: declaration of 'operator delete' has no matching declaration of 'operator new' at the same scope25 void operator delete(void *ptr) noexcept;26 // CHECK-MESSAGES: :[[@LINE+1]]:8: warning: declaration of 'operator delete[]' has no matching declaration of 'operator new[]' at the same scope27 void operator delete[](void *ptr) noexcept;28};29 30struct A {31 void *operator new(size_t size, Z) noexcept; // ok, placement new32};33 34struct B {35 void operator delete(void *ptr, A) noexcept; // ok, placement delete36};37 38// It is okay to have a class with an inaccessible free store operator.39struct C {40 void *operator new(size_t, A) noexcept; // ok, placement new41private:42 void operator delete(void *) noexcept;43};44 45// It is also okay to have a class with a delete free store operator.46struct D {47 void *operator new(size_t, A) noexcept; // ok, placement new48 void operator delete(void *) noexcept = delete;49};50 51struct E : U {52 void *operator new(size_t) noexcept; // okay, we inherit operator delete from U53};54 55struct F : S {56 // CHECK-MESSAGES: :[[@LINE+1]]:9: warning: declaration of 'operator new' has no matching declaration of 'operator delete' at the same scope57 void *operator new(size_t) noexcept;58};59 60class G {61 void operator delete(void *) noexcept;62};63 64struct H : G {65 // CHECK-MESSAGES: :[[@LINE+1]]:9: warning: declaration of 'operator new' has no matching declaration of 'operator delete' at the same scope66 void *operator new(size_t) noexcept; // base class operator is inaccessible67};68 69template <typename Base> struct Derived : Base {70 void operator delete(void *);71};72