genode/repos/ports/src/noux/range_checked_index.h
Norman Feske ca971bbfd8 Move repositories to 'repos/' subdirectory
This patch changes the top-level directory layout as a preparatory
step for improving the tools for managing 3rd-party source codes.
The rationale is described in the issue referenced below.

Issue #1082
2014-05-14 16:08:00 +02:00

45 lines
782 B
C++

/*
* \brief Utility for checking array bounds
* \author Norman Feske
* \date 2011-02-18
*/
/*
* Copyright (C) 2011-2013 Genode Labs GmbH
*
* This file is part of the Genode OS framework, which is distributed
* under the terms of the GNU General Public License version 2.
*/
#ifndef _NOUX__RANGE_CHECKED_INDEX_H_
#define _NOUX__RANGE_CHECKED_INDEX_H_
namespace Noux {
class Index_out_of_range { };
template <typename T>
struct Range_checked_index
{
T value;
T const max;
Range_checked_index(T value, T max)
: value(value), max(max) { }
T operator++ (int)
{
T old_value = value;
if (++value >= max)
throw Index_out_of_range();
return old_value;
}
operator T () { return value; }
};
}
#endif /* _NOUX__RANGE_CHECKED_INDEX_H_ */