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freebsd/contrib/kyua/utils/noncopyable.hpp
Brooks Davis b0d29bc47d Import the kyua test framework.
Having kyua in the base system will simplify automated testing in CI and
eliminates bootstrapping issues on new platforms.

The build of kyua is controlled by WITH(OUT)_TESTS_SUPPORT.

Reviewed by:	emaste
Obtained from:	CheriBSD
Sponsored by:	DARPA
Differential Revision:	https://reviews.freebsd.org/D24103
2020-03-23 19:01:23 +00:00

76 lines
2.8 KiB
C++

// Copyright 2010 The Kyua Authors.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
// * Neither the name of Google Inc. nor the names of its contributors
// may be used to endorse or promote products derived from this software
// without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
/// \file utils/noncopyable.hpp
/// Provides the utils::noncopyable class.
///
/// The class is provided as a separate module on its own to minimize
/// header-inclusion side-effects.
#if !defined(UTILS_NONCOPYABLE_HPP)
#define UTILS_NONCOPYABLE_HPP
namespace utils {
/// Forbids copying a class at compile-time.
///
/// Inheriting from this class delivers a private copy constructor and an
/// assignment operator that effectively forbid copying the class during
/// compilation.
///
/// Always use private inheritance.
class noncopyable {
/// Data placeholder.
///
/// The class cannot be empty; otherwise we get ABI-stability warnings
/// during the build, which will break it due to strict checking.
int _noncopyable_dummy;
/// Private copy constructor to deny copying of subclasses.
noncopyable(const noncopyable&);
/// Private assignment constructor to deny copying of subclasses.
///
/// \return A reference to the object.
noncopyable& operator=(const noncopyable&);
protected:
// Explicitly needed to provide some non-private functions. Otherwise
// we also get some warnings during the build.
noncopyable(void) {}
~noncopyable(void) {}
};
} // namespace utils
#endif // !defined(UTILS_NONCOPYABLE_HPP)