117 lines
3.1 KiB
C++
117 lines
3.1 KiB
C++
/*
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* Copyright (c) 2003-2008, John Wiegley. 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:
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*
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* - 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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*
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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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*
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* - Neither the name of New Artisans LLC 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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#ifndef _FLAGS_H
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#define _FLAGS_H
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template <typename T = boost::uint_least8_t>
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class supports_flags
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{
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public:
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typedef T flags_t;
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protected:
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flags_t flags_;
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public:
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supports_flags() : flags_(0) {
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TRACE_CTOR(supports_flags, "");
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}
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supports_flags(const flags_t& arg) : flags_(arg) {
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TRACE_CTOR(supports_flags, "copy");
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}
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~supports_flags() throw() {
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TRACE_DTOR(supports_flags);
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}
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flags_t flags() const {
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return flags_;
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}
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bool has_flags(const flags_t arg) const {
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return flags_ & arg;
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}
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void set_flags(const flags_t arg) {
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flags_ = arg;
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}
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void clear_flags() {
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flags_ = 0;
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}
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void add_flags(const flags_t arg) {
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flags_ |= arg;
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}
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void drop_flags(const flags_t arg) {
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flags_ &= ~arg;
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}
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};
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template <typename T = boost::uint_least8_t>
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class delegates_flags : public boost::noncopyable
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{
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public:
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typedef T flags_t;
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protected:
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supports_flags<T>& flags_;
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public:
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delegates_flags() : flags_() {
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TRACE_CTOR(delegates_flags, "");
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}
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delegates_flags(supports_flags<T>& arg) : flags_(arg) {
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TRACE_CTOR(delegates_flags, "const supports_flags<T>&");
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}
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~delegates_flags() throw() {
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TRACE_DTOR(delegates_flags);
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}
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flags_t flags() const {
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return flags_.flags();
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}
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bool has_flags(const flags_t arg) const {
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return flags_.has_flags(arg);
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}
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void set_flags(const flags_t arg) {
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flags_.set_flags(arg);
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}
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void clear_flags() {
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flags_.clear_flags();
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}
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void add_flags(const flags_t arg) {
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flags_.add_flags(arg);
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}
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void drop_flags(const flags_t arg) {
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flags_.drop_flags(arg);
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}
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};
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#endif // _FLAGS_H
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