1 // RUN: %clang_cc1 -std=c++20 %s -verify 2 foo()3int foo () { 4 int b; 5 explicit( && b ); // expected-error{{conversion from 'void *' to 'bool' is not allowed in a converted constant expression}} 6 // expected-error@-1{{'explicit' can only appear on non-static member functions}} 7 // expected-error@-2{{use of undeclared label 'b'}} 8 // expected-warning@-3{{declaration does not declare anything}} 9 } 10