2008-11-10 20:51:17 +01:00
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/*
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* Copyright (c) 2008 The Hewlett-Packard Development Company
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met: redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer;
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* redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution;
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* neither the name of the copyright holders nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* Authors: Nathan Binkert
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*/
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#ifndef __BASE_FLAGS_HH__
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#define __BASE_FLAGS_HH__
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template <typename T>
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class Flags
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{
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private:
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T _flags;
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public:
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typedef T Type;
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Flags() : _flags(0) {}
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Flags(Type flags) : _flags(flags) {}
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operator const Type() const { return _flags; }
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2016-02-07 02:21:18 +01:00
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template <typename U>
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2008-11-10 20:51:17 +01:00
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const Flags<T> &
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operator=(const Flags<U> &flags)
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{
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_flags = flags._flags;
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return *this;
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}
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const Flags<T> &
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operator=(T flags)
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{
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_flags = flags;
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return *this;
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}
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2016-02-07 02:21:18 +01:00
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2008-12-06 23:18:18 +01:00
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bool isSet() const { return _flags; }
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bool isSet(Type flags) const { return (_flags & flags); }
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bool allSet() const { return !(~_flags); }
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bool allSet(Type flags) const { return (_flags & flags) == flags; }
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bool noneSet() const { return _flags == 0; }
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bool noneSet(Type flags) const { return (_flags & flags) == 0; }
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2008-11-10 20:51:17 +01:00
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void clear() { _flags = 0; }
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void clear(Type flags) { _flags &= ~flags; }
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void set(Type flags) { _flags |= flags; }
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2008-11-14 13:55:30 +01:00
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void set(Type f, bool val) { _flags = (_flags & ~f) | (val ? f : 0); }
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2008-11-10 20:51:17 +01:00
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void
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update(Type flags, Type mask)
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{
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_flags = (_flags & ~mask) | (flags & mask);
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}
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};
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#endif // __BASE_FLAGS_HH__
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