/usr/include/caf/actor_ostream.hpp is in libcaf-dev 0.13.2-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* ____ _ _____ *
* / ___| / \ | ___| C++ *
* | | / _ \ | |_ Actor *
* | |___ / ___ \| _| Framework *
* \____/_/ \_|_| *
* *
* Copyright (C) 2011 - 2015 *
* Dominik Charousset <dominik.charousset (at) haw-hamburg.de> *
* *
* Distributed under the terms and conditions of the BSD 3-Clause License or *
* (at your option) under the terms and conditions of the Boost Software *
* License 1.0. See accompanying files LICENSE and LICENSE_ALTERNATIVE. *
* *
* If you did not receive a copy of the license files, see *
* http://opensource.org/licenses/BSD-3-Clause and *
* http://www.boost.org/LICENSE_1_0.txt. *
******************************************************************************/
#ifndef CAF_ACTOR_OSTREAM_HPP
#define CAF_ACTOR_OSTREAM_HPP
#include "caf/actor.hpp"
#include "caf/message.hpp"
#include "caf/to_string.hpp"
namespace caf {
class local_actor;
class scoped_actor;
class actor_ostream {
public:
using fun_type = actor_ostream& (*)(actor_ostream&);
actor_ostream(actor_ostream&&) = default;
actor_ostream(const actor_ostream&) = default;
actor_ostream& operator=(actor_ostream&&) = default;
actor_ostream& operator=(const actor_ostream&) = default;
explicit actor_ostream(actor self);
actor_ostream& write(std::string arg);
actor_ostream& flush();
inline actor_ostream& operator<<(std::string arg) {
return write(std::move(arg));
}
inline actor_ostream& operator<<(const message& arg) {
return write(caf::to_string(arg));
}
// disambiguate between conversion to string and to message
inline actor_ostream& operator<<(const char* arg) {
return *this << std::string{arg};
}
template <class T>
inline typename std::enable_if<
!std::is_convertible<T, std::string>::value &&
!std::is_convertible<T, message>::value, actor_ostream&
>::type operator<<(T&& arg) {
return write(std::to_string(std::forward<T>(arg)));
}
inline actor_ostream& operator<<(actor_ostream::fun_type f) {
return f(*this);
}
private:
actor m_self;
actor m_printer;
};
inline actor_ostream aout(actor self) {
return actor_ostream{self};
}
} // namespace caf
namespace std {
// provide convenience overlaods for aout; implemented in logging.cpp
caf::actor_ostream& endl(caf::actor_ostream& o);
caf::actor_ostream& flush(caf::actor_ostream& o);
} // namespace std
#endif // CAF_ACTOR_OSTREAM_HPP
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