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driver/PublicUtility/CACFNumber.h
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151
driver/PublicUtility/CACFNumber.h
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/*
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File: CACFNumber.h
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Abstract: Part of CoreAudio Utility Classes
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Version: 1.1
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Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple
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Inc. ("Apple") in consideration of your agreement to the following
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terms, and your use, installation, modification or redistribution of
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this Apple software constitutes acceptance of these terms. If you do
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not agree with these terms, please do not use, install, modify or
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redistribute this Apple software.
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In consideration of your agreement to abide by the following terms, and
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subject to these terms, Apple grants you a personal, non-exclusive
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license, under Apple's copyrights in this original Apple software (the
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"Apple Software"), to use, reproduce, modify and redistribute the Apple
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Software, with or without modifications, in source and/or binary forms;
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provided that if you redistribute the Apple Software in its entirety and
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without modifications, you must retain this notice and the following
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text and disclaimers in all such redistributions of the Apple Software.
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Neither the name, trademarks, service marks or logos of Apple Inc. may
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be used to endorse or promote products derived from the Apple Software
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without specific prior written permission from Apple. Except as
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expressly stated in this notice, no other rights or licenses, express or
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implied, are granted by Apple herein, including but not limited to any
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patent rights that may be infringed by your derivative works or by other
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works in which the Apple Software may be incorporated.
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The Apple Software is provided by Apple on an "AS IS" basis. APPLE
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MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION
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THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS
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FOR A PARTICULAR PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND
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OPERATION ALONE OR IN COMBINATION WITH YOUR PRODUCTS.
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IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL
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OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION,
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MODIFICATION AND/OR DISTRIBUTION OF THE APPLE SOFTWARE, HOWEVER CAUSED
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AND WHETHER UNDER THEORY OF CONTRACT, TORT (INCLUDING NEGLIGENCE),
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STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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Copyright (C) 2014 Apple Inc. All Rights Reserved.
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*/
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#if !defined(__CACFNumber_h__)
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#define __CACFNumber_h__
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//=============================================================================
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// Includes
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//=============================================================================
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#if !defined(__COREAUDIO_USE_FLAT_INCLUDES__)
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#include <CoreAudio/CoreAudioTypes.h>
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#include <CoreFoundation/CFNumber.h>
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#else
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#include <CoreAudioTypes.h>
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#include <CFNumber.h>
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#endif
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//=============================================================================
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// CACFBoolean
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//=============================================================================
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class CACFBoolean
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{
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// Construction/Destruction
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public:
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explicit CACFBoolean(CFBooleanRef inCFBoolean) : mCFBoolean(inCFBoolean), mWillRelease(true) {}
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CACFBoolean(CFBooleanRef inCFBoolean, bool inWillRelease) : mCFBoolean(inCFBoolean), mWillRelease(inWillRelease) {}
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explicit CACFBoolean(bool inValue) : mCFBoolean(inValue ? kCFBooleanTrue : kCFBooleanFalse), mWillRelease(true) { Retain(); }
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~CACFBoolean() { Release(); }
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CACFBoolean(const CACFBoolean& inBoolean) : mCFBoolean(inBoolean.mCFBoolean), mWillRelease(inBoolean.mWillRelease) { Retain(); }
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CACFBoolean& operator=(const CACFBoolean& inBoolean) { Release(); mCFBoolean = inBoolean.mCFBoolean; mWillRelease = inBoolean.mWillRelease; Retain(); return *this; }
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CACFBoolean& operator=(CFBooleanRef inCFBoolean) { Release(); mCFBoolean = inCFBoolean; mWillRelease = true; return *this; }
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private:
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void Retain() { if(mWillRelease && (mCFBoolean != NULL)) { CFRetain(mCFBoolean); } }
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void Release() { if(mWillRelease && (mCFBoolean != NULL)) { CFRelease(mCFBoolean); } }
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CFBooleanRef mCFBoolean;
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bool mWillRelease;
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// Operations
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public:
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void AllowRelease() { mWillRelease = true; }
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void DontAllowRelease() { mWillRelease = false; }
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bool IsValid() { return mCFBoolean != NULL; }
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// Value Access
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public:
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CFBooleanRef GetCFBoolean() const { return mCFBoolean; }
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CFBooleanRef CopyCFBoolean() const { if(mCFBoolean != NULL) { CFRetain(mCFBoolean); } return mCFBoolean; }
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bool GetBoolean() const { bool theAnswer = false; if(mCFBoolean != NULL) { theAnswer = CFEqual(mCFBoolean, kCFBooleanTrue); } return theAnswer; }
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CACFBoolean(const void*); // prevent accidental instantiation with a pointer via bool constructor
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};
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//=============================================================================
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// CACFNumber
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//=============================================================================
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class CACFNumber
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{
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// Construction/Destruction
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public:
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explicit CACFNumber(CFNumberRef inCFNumber) : mCFNumber(inCFNumber), mWillRelease(true) {}
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CACFNumber(CFNumberRef inCFNumber, bool inWillRelease) : mCFNumber(inCFNumber), mWillRelease(inWillRelease) {}
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CACFNumber(SInt32 inValue) : mCFNumber(CFNumberCreate(NULL, kCFNumberSInt32Type, &inValue)), mWillRelease(true) {}
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CACFNumber(UInt32 inValue) : mCFNumber(CFNumberCreate(NULL, kCFNumberSInt32Type, &inValue)), mWillRelease(true) {}
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CACFNumber(SInt64 inValue) : mCFNumber(CFNumberCreate(NULL, kCFNumberSInt64Type, &inValue)), mWillRelease(true) {}
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CACFNumber(UInt64 inValue) : mCFNumber(CFNumberCreate(NULL, kCFNumberSInt64Type, &inValue)), mWillRelease(true) {}
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CACFNumber(Float32 inValue) : mCFNumber(CFNumberCreate(NULL, kCFNumberFloat32Type, &inValue)), mWillRelease(true) {}
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CACFNumber(Float64 inValue) : mCFNumber(CFNumberCreate(NULL, kCFNumberFloat64Type, &inValue)), mWillRelease(true) {}
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~CACFNumber() { Release(); }
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CACFNumber(const CACFNumber& inNumber) : mCFNumber(inNumber.mCFNumber), mWillRelease(inNumber.mWillRelease) { Retain(); }
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CACFNumber& operator=(const CACFNumber& inNumber) { Release(); mCFNumber = inNumber.mCFNumber; mWillRelease = inNumber.mWillRelease; Retain(); return *this; }
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CACFNumber& operator=(CFNumberRef inCFNumber) { Release(); mCFNumber = inCFNumber; mWillRelease = true; return *this; }
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private:
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void Retain() { if(mWillRelease && (mCFNumber != NULL)) { CFRetain(mCFNumber); } }
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void Release() { if(mWillRelease && (mCFNumber != NULL)) { CFRelease(mCFNumber); } }
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CFNumberRef mCFNumber;
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bool mWillRelease;
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// Operations
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public:
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void AllowRelease() { mWillRelease = true; }
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void DontAllowRelease() { mWillRelease = false; }
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bool IsValid() const { return mCFNumber != NULL; }
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// Value Access
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public:
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CFNumberRef GetCFNumber() const { return mCFNumber; }
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CFNumberRef CopyCFNumber() const { if(mCFNumber != NULL) { CFRetain(mCFNumber); } return mCFNumber; }
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SInt8 GetSInt8() const { SInt8 theAnswer = 0; if(mCFNumber != NULL) { CFNumberGetValue(mCFNumber, kCFNumberSInt8Type, &theAnswer); } return theAnswer; }
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SInt32 GetSInt32() const { SInt32 theAnswer = 0; if(mCFNumber != NULL) { CFNumberGetValue(mCFNumber, kCFNumberSInt32Type, &theAnswer); } return theAnswer; }
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UInt32 GetUInt32() const { UInt32 theAnswer = 0; if(mCFNumber != NULL) { CFNumberGetValue(mCFNumber, kCFNumberSInt32Type, &theAnswer); } return theAnswer; }
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Float32 GetFloat32() const { Float32 theAnswer = 0.0f; if(mCFNumber != NULL) { CFNumberGetValue(mCFNumber, kCFNumberFloat32Type, &theAnswer); } return theAnswer; }
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Float32 GetFixed32() const;
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Float64 GetFixed64() const;
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SInt64 GetSInt64() const { SInt64 theAnswer = 0; if(mCFNumber != NULL) { CFNumberGetValue(mCFNumber, kCFNumberSInt64Type, &theAnswer); } return theAnswer; }
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CACFNumber(const void*); // prevent accidental instantiation with a pointer via bool constructor
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};
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#endif
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