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// RUN: %clang_cc1 -std=c++98 %s -verify -fexceptions -fcxx-exceptions -pedantic-errors
// RUN: %clang_cc1 -std=c++11 %s -verify -fexceptions -fcxx-exceptions -pedantic-errors
// RUN: %clang_cc1 -std=c++14 %s -verify -fexceptions -fcxx-exceptions -pedantic-errors
// RUN: %clang_cc1 -std=c++17 %s -verify -fexceptions -fcxx-exceptions -pedantic-errors
// RUN: %clang_cc1 -std=c++2a %s -verify -fexceptions -fcxx-exceptions -pedantic-errors
namespace dr1113 { // dr1113: partial
namespace named {
extern int a; // expected-note {{previous}}
static int a; // expected-error {{static declaration of 'a' follows non-static}}
}
namespace {
extern int a;
static int a; // ok, both declarations have internal linkage
int b = a;
}
// FIXME: Per DR1113 and DR4, this is ill-formed due to ambiguity: the second
// 'f' has internal linkage, and so does not have C language linkage, so is
// not a redeclaration of the first 'f'.
//
// To avoid a breaking change here, Clang ignores the "internal linkage" effect
// of anonymous namespaces on declarations declared within an 'extern "C"'
// linkage-specification.
extern "C" void f();
namespace {
extern "C" void f();
}
void g() { f(); }
}
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