llvm-project/clang/test/SemaCXX/namespace-alias.cpp

65 lines
1.3 KiB
C++

// RUN: clang-cc -fsyntax-only -verify %s
namespace N { };
namespace A = N;
int B; // expected-note {{previous definition is here}}
namespace B = N; // expected-error {{redefinition of 'B' as different kind of symbol}}
namespace C { } // expected-note {{previous definition is here}}
namespace C = N; // expected-error {{redefinition of 'C'}}
int i;
namespace D = i; // expected-error {{expected namespace name}}
namespace E = N::Foo; // expected-error {{expected namespace name}}
namespace F {
namespace A { namespace B { } } // expected-note {{candidate found by name lookup is 'F::A::B'}}
namespace B { } // expected-note {{candidate found by name lookup is 'F::B'}}
using namespace A;
namespace D = B; // expected-error {{reference to 'B' is ambiguous}}
}
namespace G {
namespace B = N;
}
namespace H {
namespace A1 { }
namespace A2 { }
// These all point to A1.
namespace B = A1; // expected-note {{previous definition is here}}
namespace B = A1;
namespace C = B;
namespace B = C;
namespace B = A2; // expected-error {{redefinition of 'B' as different kind of symbol}}
}
namespace I {
namespace A1 { int i; }
namespace A2 = A1;
}
int f() {
return I::A2::i;
}
namespace J {
namespace A {
namespace B { void func (); }
}
namespace C = A;
using namespace C::B;
void g() {
func();
}
}