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/*
* Copyright (c) 2017-present, Facebook, Inc.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/
namespace FirstNameSpace {
namespace SecodNameSpace {
class C {
void m();
};
}
void SecodNameSpace::C::m() {}
}
using namespace FirstNameSpace;
void foo() { SecodNameSpace::C(); }