freebsd-dev/contrib/kyua/utils/auto_array.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

103 lines
3.3 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/auto_array.hpp
/// Provides the utils::auto_array class.
///
/// The class is provided as a separate module on its own to minimize
/// header-inclusion side-effects.
#if !defined(UTILS_AUTO_ARRAY_HPP)
#define UTILS_AUTO_ARRAY_HPP
#include "utils/auto_array_fwd.hpp"
#include <cstddef>
namespace utils {
namespace detail {
/// Wrapper class to provide reference semantics for utils::auto_array.
///
/// This class is internally used, for example, to allow returning a
/// utils::auto_array from a function.
template< class T >
class auto_array_ref {
/// Internal pointer to the dynamically-allocated array.
T* _ptr;
template< class > friend class utils::auto_array;
public:
explicit auto_array_ref(T*);
};
} // namespace detail
/// A simple smart pointer for arrays providing strict ownership semantics.
///
/// This class is the counterpart of std::auto_ptr for arrays. The semantics of
/// the API of this class are the same as those of std::auto_ptr.
///
/// The wrapped pointer must be NULL or must have been allocated using operator
/// new[].
template< class T >
class auto_array {
/// Internal pointer to the dynamically-allocated array.
T* _ptr;
public:
auto_array(T* = NULL) throw();
auto_array(auto_array< T >&) throw();
auto_array(detail::auto_array_ref< T >) throw();
~auto_array(void) throw();
T* get(void) throw();
const T* get(void) const throw();
T* release(void) throw();
void reset(T* = NULL) throw();
auto_array< T >& operator=(auto_array< T >&) throw();
auto_array< T >& operator=(detail::auto_array_ref< T >) throw();
T& operator[](int) throw();
const T& operator[](int) const throw();
operator detail::auto_array_ref< T >(void) throw();
};
} // namespace utils
#endif // !defined(UTILS_AUTO_ARRAY_HPP)