52 lines · cpp
1// RUN: %clang_cc1 -fsyntax-only -verify %s2// RUN: %clang_cc1 -DMS -fms-compatibility -Wmicrosoft-inaccessible-base -fsyntax-only -verify %s3 4struct A {5 int a;6};7 8struct X1 : virtual A9{};10 11struct Y1 : X1, virtual A12{};13 14struct Y2 : X1, A // expected-warning{{direct base 'A' is inaccessible due to ambiguity:\n struct Y2 -> X1 -> A\n struct Y2 -> A}}15{};16 17struct X2 : A18{};19 20struct Z1 : X2, virtual A // expected-warning{{direct base 'A' is inaccessible due to ambiguity:\n struct Z1 -> X2 -> A\n struct Z1 -> A}}21{};22 23struct Z2 : X2, A // expected-warning{{direct base 'A' is inaccessible due to ambiguity:\n struct Z2 -> X2 -> A\n struct Z2 -> A}}24{};25 26A *y2_to_a(Y2 *p) {27#ifdef MS28 // expected-warning@+4 {{accessing inaccessible direct base 'A' of 'Y2' is a Microsoft extension}}29#else30 // expected-error@+2 {{ambiguous conversion}}31#endif32 return p;33}34 35A *z1_to_a(Z1 *p) {36#ifdef MS37 // expected-warning@+4 {{accessing inaccessible direct base 'A' of 'Z1' is a Microsoft extension}}38#else39 // expected-error@+2 {{ambiguous conversion}}40#endif41 return p;42}43 44A *z1_to_a(Z2 *p) {45#ifdef MS46 // expected-warning@+4 {{accessing inaccessible direct base 'A' of 'Z2' is a Microsoft extension}}47#else48 // expected-error@+2 {{ambiguous conversion}}49#endif50 return p;51}52