62 lines · cpp
1// RUN: %clang_cc1 -verify %s -std=c++202 3// We avoid printing the name of an inline namespace unless it's necessary to4// uniquely identify the target.5namespace N {6 inline namespace A {7 inline namespace B {8 inline namespace C {9 int f, g, h, i, j;10 struct f; struct g; struct h; struct i; struct j;11 }12 struct g;13 struct j;14 }15 struct h;16 }17 struct i;18 struct j;19 20 template<int*> struct Q; // expected-note 5{{here}}21 Q<&A::B::C::f> q1; // expected-error {{implicit instantiation of undefined template 'N::Q<&N::f>'}}22 Q<&A::B::C::g> q2; // expected-error {{implicit instantiation of undefined template 'N::Q<&N::C::g>'}}23 Q<&A::B::C::h> q3; // expected-error {{implicit instantiation of undefined template 'N::Q<&N::B::h>'}}24 Q<&A::B::C::i> q4; // expected-error {{implicit instantiation of undefined template 'N::Q<&N::A::i>'}}25 Q<&A::B::C::j> q5; // expected-error {{implicit instantiation of undefined template 'N::Q<&N::C::j>'}}26 27 template<typename> struct R; // expected-note 5{{here}}28 R<struct A::B::C::f> r1; // expected-error {{implicit instantiation of undefined template 'N::R<N::f>'}}29 R<struct A::B::C::g> r2; // expected-error {{implicit instantiation of undefined template 'N::R<N::C::g>'}}30 R<struct A::B::C::h> r3; // expected-error {{implicit instantiation of undefined template 'N::R<N::B::h>'}}31 R<struct A::B::C::i> r4; // expected-error {{implicit instantiation of undefined template 'N::R<N::A::i>'}}32 R<struct A::B::C::j> r5; // expected-error {{implicit instantiation of undefined template 'N::R<N::C::j>'}}33 34 // Make the name N::C ambiguous.35 inline namespace A { int C; }36 37 template<int*> struct S; // expected-note 5{{here}}38 S<&A::B::C::f> s1; // expected-error {{implicit instantiation of undefined template 'N::S<&N::f>'}}39 S<&A::B::C::g> s2; // expected-error {{implicit instantiation of undefined template 'N::S<&N::B::C::g>'}}40 S<&A::B::C::h> s3; // expected-error {{implicit instantiation of undefined template 'N::S<&N::B::h>'}}41 S<&A::B::C::i> s4; // expected-error {{implicit instantiation of undefined template 'N::S<&N::A::i>'}}42 S<&A::B::C::j> s5; // expected-error {{implicit instantiation of undefined template 'N::S<&N::B::C::j>'}}43 44 template<typename> struct T; // expected-note 5{{here}}45 T<struct A::B::C::f> t1; // expected-error {{implicit instantiation of undefined template 'N::T<N::f>'}}46 T<struct A::B::C::g> t2; // expected-error {{implicit instantiation of undefined template 'N::T<N::B::C::g>'}}47 T<struct A::B::C::h> t3; // expected-error {{implicit instantiation of undefined template 'N::T<N::B::h>'}}48 T<struct A::B::C::i> t4; // expected-error {{implicit instantiation of undefined template 'N::T<N::A::i>'}}49 T<struct A::B::C::j> t5; // expected-error {{implicit instantiation of undefined template 'N::T<N::B::C::j>'}}50}51 52namespace dont_crash {53// A malformed lookup involving inline namespaces in a linkage specification54// would previous cause an assertion due to the way diagnostics are emitted.55extern "C++" inline namespace {56namespace a {57 a : b // expected-error {{unexpected ':' in nested name specifier; did you mean '::'?}} \58 // expected-error {{no type named 'b' in namespace 'dont_crash::a'}}59} // expected-error {{expected unqualified-id}}60} // inline namespace61} // dont_crash62