1// PR c++/51640 2 3class ex {}; 4 5namespace t 6{ 7 class ex2 : public ex {}; 8} 9 10class ex2 : public ex {}; 11 12void bar() 13{ 14 using namespace t; 15 16 try { 17 } catch (ex2&) { // { dg-error "reference to 'ex2' is ambiguous" } 18 } 19} 20