66 lines · cpp
1// RUN: %clang_cc1 -std=c++11 -fsyntax-only -verify %s2 3// Tests related to constructor inheriting, but not specified in [class.inhctor]4 5// [namespace.udecl]p8:6// A using-declaration for a class member shall be a member-declaration.7 8struct B1 {9 B1(int);10};11 12using B1::B1; // expected-error {{using declaration cannot refer to class member}}13 14// C++11 [namespace.udecl]p10:15// A using-declaration is a declaration and can therefore be used repeatedly16// where (and only where) multiple declarations are allowed.17 18struct I1 : B1 {19 using B1::B1; // expected-note {{previous using declaration}}20 using B1::B1; // expected-error {{redeclaration of using decl}}21};22 23// C++11 [namespace.udecl]p3:24// In a using declaration used as a member-declaration, the nested-name-25// specifier shall name a base class of the class being defined.26// If such a using-declaration names a constructor, the nested-name-specifier27// shall name a direct base class of the class being defined.28 29struct D1 : I1 {30 using B1::B1; // expected-error {{'B1' is not a direct base of 'D1', cannot inherit constructors}}31};32 33template<typename T> struct A {};34 35template<typename T> struct B : A<bool>, A<char> {36 using A<T>::A; // expected-error {{'A<double>', which is not a base class of 'B<double>'}}37};38B<bool> bb;39B<char> bc;40B<double> bd; // expected-note {{here}}41 42template<typename T> struct C : A<T> {43 using A<bool>::A; // expected-error {{'A<bool>', which is not a base class of 'C<char>'}}44};45C<bool> cb;46C<char> cc; // expected-note {{here}}47 48template<typename T> struct D : A<T> {};49template<typename T> struct E : D<T> {50 using A<bool>::A; // expected-error {{'A<bool>' is not a direct base of 'E<bool>', cannot inherit}}51};52E<bool> eb; // expected-note {{here}}53 54template<typename T> struct F : D<bool> {55 using A<T>::A; // expected-error {{'A<bool>' is not a direct base of 'F<bool>'}}56};57F<bool> fb; // expected-note {{here}}58 59template<typename T>60struct G : T {61 using T::T;62 G(int &) : G(0) {}63};64G<B1> g(123);65G<const B1> g2(123);66