File: attr-unused.cpp

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// RUN: %clang_cc1 -verify -Wunused -Wused-but-marked-unused -fsyntax-only %s

namespace ns_unused { typedef int Int_unused __attribute__((unused)); }
namespace ns_not_unused { typedef int Int_not_unused; }

void f() {
  ns_not_unused::Int_not_unused i1; // expected-warning {{unused variable}}
  ns_unused::Int_unused i0; // expected-warning {{'Int_unused' was marked unused but was used}}
}