68 lines · cpp
1// RUN: %clang_cc1 -fsyntax-only -verify %s2struct A; // expected-note 15 {{forward declaration of 'A'}}3 4A f(); // expected-note {{'f' declared here}}5template <typename T> A ft(T); // expected-note {{'ft' declared here}}6 7struct B {8 A f(); // expected-note {{'f' declared here}}9 A operator()(); // expected-note 2 {{'operator()' declared here}}10 operator A(); // expected-note {{'operator A' declared here}}11 A operator!(); // expected-note 2 {{'operator!' declared here}}12 A operator++(int); // expected-note {{'operator++' declared here}}13 A operator[](int); // expected-note {{'operator[]' declared here}}14 A operator+(int); // expected-note {{'operator+' declared here}}15 A operator->(); // expected-note {{'operator->' declared here}}16};17 18void g() {19 f(); // expected-error {{calling 'f' with incomplete return type 'A'}}20 21 typedef A (*Func)();22 Func fp;23 fp(); // expected-error {{calling function with incomplete return type 'A'}}24 ((Func)0)(); // expected-error {{calling function with incomplete return type 'A'}}25 26 B b;27 b.f(); // expected-error {{calling 'f' with incomplete return type 'A'}}28 29 b.operator()(); // expected-error {{calling 'operator()' with incomplete return type 'A'}}30 b.operator A(); // expected-error {{calling 'operator A' with incomplete return type 'A'}}31 b.operator!(); // expected-error {{calling 'operator!' with incomplete return type 'A'}}32 33 !b; // expected-error {{calling 'operator!' with incomplete return type 'A'}}34 b(); // expected-error {{calling 'operator()' with incomplete return type 'A'}}35 b++; // expected-error {{calling 'operator++' with incomplete return type 'A'}}36 b[0]; // expected-error {{calling 'operator[]' with incomplete return type 'A'}}37 b + 1; // expected-error {{calling 'operator+' with incomplete return type 'A'}}38 b->f(); // expected-error {{calling 'operator->' with incomplete return type 'A'}}39 40 A (B::*mfp)() = 0;41 (b.*mfp)(); // expected-error {{calling function with incomplete return type 'A'}}42 43 ft(42); // expected-error {{calling 'ft<int>' with incomplete return type 'A'}}44}45 46 47struct C; // expected-note{{forward declaration}}48 49void test_incomplete_object_call(C& c) {50 c(); // expected-error{{incomplete type in call to object of type}}51}52 53void test_incomplete_object_dtor(C *p) {54 p.~C(); // expected-error{{member reference type 'C *' is a pointer; did you mean to use '->'?}}55}56 57namespace pr18542 {58 struct X {59 int count;60 template<typename CharT> class basic_istream;61 template<typename CharT>62 void basic_istream<CharT>::read() { // expected-error{{out-of-line definition of 'read' from class 'pr18542::X::basic_istream<CharT>' without definition}}63 count = 0;64 }65 };66}67 68