Support for XISF
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// ____ ______ __
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// / __ \ / ____// /
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// / /_/ // / / /
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// / ____// /___ / /___ PixInsight Class Library
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// /_/ \____//_____/ PCL 2.4.23
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// ----------------------------------------------------------------------------
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// pcl/Flags.h - Released 2022-03-12T18:59:29Z
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// ----------------------------------------------------------------------------
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// This file is part of the PixInsight Class Library (PCL).
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// PCL is a multiplatform C++ framework for development of PixInsight modules.
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//
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// Copyright (c) 2003-2022 Pleiades Astrophoto S.L. All Rights Reserved.
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//
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// Redistribution and use in both source and binary forms, with or without
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// modification, is permitted provided that the following conditions are met:
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//
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// 1. All 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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// 2. All 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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// 3. Neither the names "PixInsight" and "Pleiades Astrophoto", nor the names
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// of their contributors, may be used to endorse or promote products derived
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// from this software without specific prior written permission. For written
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// permission, please contact info@pixinsight.com.
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//
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// 4. All products derived from this software, in any form whatsoever, must
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// reproduce the following acknowledgment in the end-user documentation
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// and/or other materials provided with the product:
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//
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// "This product is based on software from the PixInsight project, developed
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// by Pleiades Astrophoto and its contributors (https://pixinsight.com/)."
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//
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// Alternatively, if that is where third-party acknowledgments normally
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// appear, this acknowledgment must be reproduced in the product itself.
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//
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// THIS SOFTWARE IS PROVIDED BY PLEIADES ASTROPHOTO AND ITS CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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// TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL PLEIADES ASTROPHOTO OR ITS
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// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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// EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, BUSINESS
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// INTERRUPTION; PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; AND LOSS OF USE,
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// DATA OR PROFITS) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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// POSSIBILITY OF SUCH DAMAGE.
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// ----------------------------------------------------------------------------
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#ifndef __PCL_Flags_h
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#define __PCL_Flags_h
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/// \file pcl/Flags.h
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#include <pcl/Defs.h>
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#ifdef __PCL_BUILDING_PIXINSIGHT_APPLICATION
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namespace pi
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{
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class GlobalSettings;
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}
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#endif
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namespace pcl
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{
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// ----------------------------------------------------------------------------
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template <bool> struct FlagType {};
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template <> struct FlagType<true> { typedef unsigned type; };
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template <> struct FlagType<false> { typedef int type; };
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// ----------------------------------------------------------------------------
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/*!
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* \class Flags
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* \brief A type-safe collection of enumerated flags
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*
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* ### TODO: Write a detailed description for %Flags.
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*/
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template <typename E>
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class PCL_CLASS Flags
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{
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public:
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static_assert( sizeof( E ) <= sizeof( int ),
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"Invalid sizeof( Flags::enum_type ): Must not be larger than sizeof( int )" );
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/*!
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* Represents the enumerated type that defines individual flags.
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*/
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typedef E enum_type;
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/*!
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* Represents the integral type used to store flags.
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*/
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typedef typename FlagType<std::is_unsigned<enum_type>::value>::type
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flag_type;
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/*!
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* Constructs an empty (zero) %Flags instance.
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*/
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Flags() = default;
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/*!
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* Constructs a %Flags instance from an enumerated flag value \a e.
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*/
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constexpr
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Flags( enum_type e )
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: m_flags( int( e ) )
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{
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}
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/*!
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* Constructs a %Flags instance from a mask \a m.
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*/
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constexpr
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Flags( flag_type m )
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: m_flags( int( m ) )
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{
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}
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/*!
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* Copy constructor.
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*/
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Flags( const Flags& ) = default;
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/*!
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* Copy assignment operator. Returns a reference to this object.
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*/
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Flags& operator =( const Flags& ) = default;
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/*!
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* Assigns an enumerated flag value \a e to this object. Returns a reference
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* to this object.
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*/
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Flags& operator =( enum_type e )
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{
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m_flags = e;
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return *this;
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}
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/*!
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* Performs a bitwise AND operation with other flags \a f and stores the
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* resulting flags in this object. Returns a reference to this object.
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*/
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Flags& operator &=( Flags f )
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{
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m_flags &= f.m_flags;
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return *this;
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}
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/*!
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* Performs a bitwise AND operation with an enumerated flag value \a e and
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* stores the resulting flags in this object. Returns a reference to this
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* object.
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*/
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Flags& operator &=( enum_type e )
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{
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m_flags &= unsigned( e );
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return *this;
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}
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/*!
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* Performs a bitwise AND operation with a mask value \a m and stores the
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* resulting flags in this object. Returns a reference to this object.
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*/
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Flags& operator &=( unsigned m )
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{
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m_flags &= m;
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return *this;
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}
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/*!
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* Performs a bitwise inclusive OR operation with other flags \a f and
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* stores the resulting flags in this object. Returns a reference to this
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* object.
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*/
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Flags& operator |=( Flags f )
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{
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m_flags |= f.m_flags;
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return *this;
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}
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/*!
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* Performs a bitwise inclusive OR operation with an enumerated flag value
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* \a e and stores the resulting flags in this object. Returns a reference
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* to this object.
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*/
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Flags& operator |=( enum_type e )
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{
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m_flags |= unsigned( e );
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return *this;
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}
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/*!
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* Performs a bitwise inclusive OR operation with a mask value \a m and
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* stores the resulting flags in this object. Returns a reference to this
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* object.
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*/
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Flags& operator |=( unsigned m )
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{
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m_flags |= m;
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return *this;
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}
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/*!
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* Performs a bitwise exclusive OR (XOR) operation with other flags \a f and
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* stores the resulting flags in this object. Returns a reference to this
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* object.
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*/
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Flags& operator ^=( Flags f )
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{
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m_flags ^= f.m_flags;
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return *this;
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}
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/*!
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* Performs a bitwise exclusive OR (XOR) operation with an enumerated flag
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* value \a e and stores the resulting flags in this object. Returns a
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* reference to this object.
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*/
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Flags& operator ^=( enum_type e )
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{
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m_flags ^= unsigned( e );
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return *this;
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}
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/*!
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* Performs a bitwise exclusive OR (XOR) operation with a mask value \a m
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* and stores the resulting flags in this object. Returns a reference to
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* this object.
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*/
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Flags& operator ^=( unsigned m )
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{
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m_flags ^= m;
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return *this;
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}
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/*!
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* Returns true iff the specified flag \a e is set in this %Flags object.
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*/
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constexpr bool IsFlagSet( enum_type e ) const
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{
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return (m_flags & e) != flag_type( 0 );
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}
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/*!
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* Sets or clears the specified flag \a e in this %Flags object.
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*/
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void SetFlag( enum_type e, bool on = true )
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{
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if ( on )
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m_flags |= e;
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else
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m_flags &= ~e;
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}
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/*!
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* Clears the specified flag \a e.
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* This is a convenience member function, equivalent to SetFlag( e, false ).
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*/
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void ClearFlag( enum_type e )
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{
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SetFlag( e, false );
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}
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/*!
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* Clears all flags in this object.
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*/
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void Clear()
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{
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m_flags = flag_type( 0 );
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}
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/*!
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* Sets the specified flag \a e in this object. Returns a reference to this
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* object.
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*/
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Flags& operator <<( enum_type e )
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{
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SetFlag( e );
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return *this;
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}
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/*!
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* Returns true iff all flags in this object are zero.
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*/
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constexpr bool operator !() const
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{
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return m_flags == flag_type( 0 );
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}
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/*!
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* Converts this %Flags object to an integer.
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*/
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constexpr operator flag_type() const
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{
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return m_flags;
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}
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/*!
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* Returns a %Flags object whose value is the bitwise negation of the flags
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* stored in this object.
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*/
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constexpr Flags operator ~() const
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{
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return Flags( enum_type( ~m_flags ) );
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}
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/*!
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* Bitwise AND between two %Flags objects.
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*/
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constexpr Flags operator &( Flags f ) const
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{
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return Flags( enum_type( m_flags & f.m_flags ) );
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}
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/*!
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* Bitwise AND between a Flags object and an enumerated value.
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*/
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constexpr Flags operator &( enum_type e ) const
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{
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return Flags( enum_type( m_flags & flag_type( e ) ) );
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}
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/*!
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* Bitwise AND between a %Flags object and a mask.
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*/
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constexpr Flags operator &( unsigned m ) const
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{
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return Flags( enum_type( m_flags & m ) );
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}
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/*!
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* Bitwise OR between two %Flags objects.
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*/
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constexpr Flags operator |( Flags f ) const
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{
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return Flags( enum_type( m_flags | f.m_flags ) );
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}
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/*!
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* Bitwise OR between a Flags object and an enumerated value.
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*/
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constexpr Flags operator |( enum_type e ) const
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{
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return Flags( enum_type( m_flags | flag_type( e ) ) );
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}
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/*!
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* Bitwise OR between a %Flags object and a mask.
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*/
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constexpr Flags operator |( unsigned m ) const
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{
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return Flags( enum_type( m_flags | m ) );
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}
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/*!
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* Bitwise XOR between two %Flags objects.
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*/
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constexpr Flags operator ^( Flags f ) const
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{
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return Flags( enum_type( m_flags ^ f.m_flags ) );
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}
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/*!
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* Bitwise XOR between a Flags object and an enumerated value.
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*/
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constexpr Flags operator ^( enum_type e ) const
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{
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return Flags( enum_type( m_flags ^ flag_type( e ) ) );
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}
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/*!
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* Bitwise XOR between a %Flags object and a mask.
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*/
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constexpr Flags operator ^( unsigned m ) const
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{
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return Flags( enum_type( m_flags ^ m ) );
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}
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private:
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flag_type m_flags = flag_type( 0 );
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#ifndef __PCL_NO_FLAGS_SETTINGS_IO
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friend class Settings;
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#endif
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#ifndef __PCL_NO_FLAGS_FILE_IO
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friend class File;
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#endif
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#ifdef __PCL_BUILDING_PIXINSIGHT_APPLICATION
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friend class pi::GlobalSettings;
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#endif
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};
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// ----------------------------------------------------------------------------
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} // pcl
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#endif // __PCL_Flags_h
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// ----------------------------------------------------------------------------
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// EOF pcl/Flags.h - Released 2022-03-12T18:59:29Z
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Reference in New Issue
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