bugprone-undelegated-constructor.cpp
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// RUN: %check_clang_tidy %s bugprone-undelegated-constructor %t
struct Ctor;
Ctor foo();
struct Ctor {
Ctor();
Ctor(int);
Ctor(int, int);
Ctor(Ctor *i) {
Ctor();
// CHECK-MESSAGES: :[[@LINE-1]]:5: warning: did you intend to call a delegated constructor? A temporary object is created here instead [bugprone-undelegated-constructor]
Ctor(0);
// CHECK-MESSAGES: :[[@LINE-1]]:5: warning: did you intend to call a delegated constructor?
Ctor(1, 2);
// CHECK-MESSAGES: :[[@LINE-1]]:5: warning: did you intend to call a delegated constructor?
foo();
}
};
Ctor::Ctor() {
Ctor(1);
// CHECK-MESSAGES: :[[@LINE-1]]:3: warning: did you intend to call a delegated constructor?
}
Ctor::Ctor(int i) : Ctor(i, 1) {} // properly delegated.
struct Dtor {
Dtor();
Dtor(int);
Dtor(int, int);
Dtor(Ctor *i) {
Dtor();
// CHECK-MESSAGES: :[[@LINE-1]]:5: warning: did you intend to call a delegated constructor?
Dtor(0);
// CHECK-MESSAGES: :[[@LINE-1]]:5: warning: did you intend to call a delegated constructor?
Dtor(1, 2);
// CHECK-MESSAGES: :[[@LINE-1]]:5: warning: did you intend to call a delegated constructor?
}
~Dtor();
};
struct Base {};
struct Derived : public Base {
Derived() { Base(); }
// CHECK-MESSAGES: :[[@LINE-1]]:15: warning: did you intend to call a delegated constructor?
};
template <typename T>
struct TDerived : public Base {
TDerived() { Base(); }
};
TDerived<int> t;