305 lines
8.5 KiB
C++
305 lines
8.5 KiB
C++
// RUN: %clang_cc1 -Wreorder -fsyntax-only -verify %s
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// RUN: %clang_cc1 -Wreorder -fsyntax-only -verify -std=c++98 %s
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// RUN: %clang_cc1 -Wreorder -fsyntax-only -verify -std=c++11 %s
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class A {
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int m;
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public:
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A() : A::m(17) { } // expected-error {{member initializer 'm' does not name a non-static data member or base class}}
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A(int);
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};
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class B : public A {
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public:
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B() : A(), m(1), n(3.14) { }
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private:
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int m;
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float n;
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};
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class C : public virtual B {
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public:
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C() : B() { }
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};
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class D : public C {
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public:
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D() : B(), C() { }
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};
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class E : public D, public B { // expected-warning{{direct base 'B' is inaccessible due to ambiguity:\n class E -> class D -> class C -> class B\n class E -> class B}}
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public:
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E() : B(), D() { } // expected-error{{base class initializer 'B' names both a direct base class and an inherited virtual base class}}
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};
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typedef int INT;
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class F : public B {
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public:
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int B;
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F() : B(17),
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m(17), // expected-error{{member initializer 'm' does not name a non-static data member or base class}}
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INT(17) // expected-error{{constructor initializer 'INT' (aka 'int') does not name a class}}
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{
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}
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};
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class G : A {
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G() : A(10); // expected-error{{expected '{'}}
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};
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void f() : a(242) { } // expected-error{{only constructors take base initializers}}
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class H : A {
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H();
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};
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H::H() : A(10) { }
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class X {};
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class Y {};
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struct S : Y, virtual X {
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S ();
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};
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struct Z : S {
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Z() : X(), S(), E() {} // expected-error {{type 'E' is not a direct or virtual base of 'Z'}}
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};
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class U {
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union { int a; char* p; };
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union { int b; double d; };
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U() : a(1), // expected-note {{previous initialization is here}}
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p(0), // expected-error {{initializing multiple members of union}}
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d(1.0) {}
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};
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struct V {};
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struct Base {};
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struct Base1 {};
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struct Derived : Base, Base1, virtual V {
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Derived ();
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};
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struct Current : Derived {
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int Derived;
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Current() : Derived(1), ::Derived(), // expected-warning {{field 'Derived' will be initialized after base '::Derived'}} \
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// expected-warning {{base class '::Derived' will be initialized after base 'Derived::V'}}
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::Derived::Base(), // expected-error {{type '::Derived::Base' is not a direct or virtual base of 'Current'}}
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Derived::Base1(), // expected-error {{type 'Derived::Base1' is not a direct or virtual base of 'Current'}}
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Derived::V(),
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::NonExisting(), // expected-error {{member initializer 'NonExisting' does not name a non-static data member or}}
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INT::NonExisting() {} // expected-error {{'INT' (aka 'int') is not a class, namespace, or enumeration}} \
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// expected-error {{member initializer 'NonExisting' does not name a non-static data member or}}
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};
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struct M { // expected-note 2 {{candidate constructor (the implicit copy constructor)}}
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#if __cplusplus >= 201103L // C++11 or later
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// expected-note@-2 2 {{candidate constructor (the implicit move constructor) not viable}}
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#endif
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// expected-note@-4 2 {{'M' declared here}}
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M(int i, int j); // expected-note 2 {{candidate constructor}}
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};
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struct N : M {
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N() : M(1), // expected-error {{no matching constructor for initialization of 'M'}}
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m1(100) { } // expected-error {{no matching constructor for initialization of 'M'}}
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M m1;
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};
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struct P : M {
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P() { } // expected-error {{constructor for 'P' must explicitly initialize the base class 'M' which does not have a default constructor}} \
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// expected-error {{member 'm'}}
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M m; // expected-note {{member is declared here}}
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};
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struct Q {
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Q() : f1(1,2), // expected-error {{excess elements in scalar initializer}}
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pf(0.0) { } // expected-error {{cannot initialize a member subobject of type 'float *' with an rvalue of type 'double'}}
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float f1;
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float *pf;
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};
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// A silly class used to demonstrate field-is-uninitialized in constructors with
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// multiple params.
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int IntParam(int i) { return 0; };
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class TwoInOne { public: TwoInOne(TwoInOne a, TwoInOne b) {} };
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class InitializeUsingSelfTest {
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bool A;
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char* B;
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int C;
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TwoInOne D;
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int E;
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InitializeUsingSelfTest(int F)
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: A(A), // expected-warning {{field 'A' is uninitialized when used here}}
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B((((B)))), // expected-warning {{field 'B' is uninitialized when used here}}
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C(A && InitializeUsingSelfTest::C), // expected-warning {{field 'C' is uninitialized when used here}}
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D(D, // expected-warning {{field 'D' is uninitialized when used here}}
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D), // expected-warning {{field 'D' is uninitialized when used here}}
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E(IntParam(E)) {} // expected-warning {{field 'E' is uninitialized when used here}}
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};
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int IntWrapper(int &i) { return 0; };
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class InitializeUsingSelfExceptions {
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int A;
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int B;
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int C;
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void *P;
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InitializeUsingSelfExceptions(int B)
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: A(IntWrapper(A)), // Due to a conservative implementation, we do not report warnings inside function/ctor calls even though it is possible to do so.
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B(B), // Not a warning; B is a local variable.
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C(sizeof(C)), // sizeof doesn't reference contents, do not warn
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P(&P) {} // address-of doesn't reference contents (the pointer may be dereferenced in the same expression but it would be rare; and weird)
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};
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class CopyConstructorTest {
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bool A, B, C;
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CopyConstructorTest(const CopyConstructorTest& rhs)
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: A(rhs.A),
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B(B), // expected-warning {{field 'B' is uninitialized when used here}}
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C(rhs.C || C) { } // expected-warning {{field 'C' is uninitialized when used here}}
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};
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// Make sure we aren't marking default constructors when we shouldn't be.
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template<typename T>
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struct NDC {
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T &ref;
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NDC() { }
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NDC(T &ref) : ref(ref) { }
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};
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struct X0 : NDC<int> {
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X0(int &ref) : NDC<int>(ref), ndc(ref) { }
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NDC<int> ndc;
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};
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namespace Test0 {
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struct A { A(); };
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struct B {
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B() { }
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const A a;
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};
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}
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namespace Test1 {
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struct A {
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enum Kind { Foo } Kind;
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A() : Kind(Foo) {}
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};
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}
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namespace Test2 {
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struct A {
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A(const A&);
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};
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struct B : virtual A { };
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struct C : A, B { }; // expected-warning{{direct base 'Test2::A' is inaccessible due to ambiguity:\n struct Test2::C -> struct Test2::A\n struct Test2::C -> struct Test2::B -> struct Test2::A}}
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C f(C c) {
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return c;
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}
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}
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// Don't build implicit initializers for anonymous union fields when we already
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// have an explicit initializer for another field in the union.
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namespace PR7402 {
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struct S {
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union {
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void* ptr_;
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struct { int i_; };
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};
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template <typename T> S(T) : ptr_(0) { }
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};
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void f() {
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S s(3);
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}
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}
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// <rdar://problem/8308215>: don't crash.
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// Lots of questionable recovery here; errors can change.
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namespace test3 {
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class A : public std::exception {}; // expected-error {{undeclared identifier}} expected-error {{expected class name}}
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// expected-note@-1 {{candidate constructor (the implicit copy constructor) not viable}}
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#if __cplusplus >= 201103L // C++11 or later
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// expected-note@-3 {{candidate constructor (the implicit move constructor) not viable}}
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#endif
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// expected-note@-5 {{candidate constructor (the implicit default constructor) not viable}}
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class B : public A {
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public:
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B(const String& s, int e=0) // expected-error {{unknown type name}}
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: A(e), m_String(s) , m_ErrorStr(__null) {} // expected-error {{no matching constructor}} expected-error {{does not name}}
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B(const B& e)
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: A(e), m_String(e.m_String), m_ErrorStr(__null) { // expected-error {{does not name}} \
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// expected-error {{no member named 'm_String' in 'test3::B'}}
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}
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};
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}
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// PR8075
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namespace PR8075 {
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struct S1 {
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enum { FOO = 42 };
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static const int bar = 42;
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static int baz();
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S1(int);
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};
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const int S1::bar;
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struct S2 {
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S1 s1;
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S2() : s1(s1.FOO) {}
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};
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struct S3 {
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S1 s1;
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S3() : s1(s1.bar) {}
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};
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struct S4 {
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S1 s1;
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S4() : s1(s1.baz()) {}
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};
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}
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namespace PR12049 {
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int function();
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class Class
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{
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public:
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Class() : member(function() {} // expected-note {{to match this '('}}
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int member; // expected-error {{expected ')'}}
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};
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}
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namespace PR14073 {
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struct S1 { union { int n; }; S1() : n(n) {} }; // expected-warning {{field 'n' is uninitialized when used here}}
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struct S2 { union { union { int n; }; char c; }; S2() : n(n) {} }; // expected-warning {{field 'n' is uninitialized when used here}}
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struct S3 { struct { int n; }; S3() : n(n) {} }; // expected-warning {{field 'n' is uninitialized when used here}}
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}
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