1 // RUN: %clang_analyze_cc1 -triple x86_64-apple-darwin10 -analyzer-checker=core,osx.coreFoundation.CFRetainRelease,osx.cocoa.ClassRelease,osx.cocoa.RetainCount -analyzer-store=region -fblocks -verify %s
3 #if __has_feature(attribute_ns_returns_retained)
4 #define NS_RETURNS_RETAINED __attribute__((ns_returns_retained))
6 #if __has_feature(attribute_cf_returns_retained)
7 #define CF_RETURNS_RETAINED __attribute__((cf_returns_retained))
9 #if __has_feature(attribute_ns_returns_not_retained)
10 #define NS_RETURNS_NOT_RETAINED __attribute__((ns_returns_not_retained))
12 #if __has_feature(attribute_cf_returns_not_retained)
13 #define CF_RETURNS_NOT_RETAINED __attribute__((cf_returns_not_retained))
15 #if __has_feature(attribute_ns_consumes_self)
16 #define NS_CONSUMES_SELF __attribute__((ns_consumes_self))
18 #if __has_feature(attribute_ns_consumed)
19 #define NS_CONSUMED __attribute__((ns_consumed))
21 #if __has_feature(attribute_cf_consumed)
22 #define CF_CONSUMED __attribute__((cf_consumed))
25 //===----------------------------------------------------------------------===//
26 // The following code is reduced using delta-debugging from Mac OS X headers:
28 // #include <Cocoa/Cocoa.h>
29 // #include <CoreFoundation/CoreFoundation.h>
30 // #include <DiskArbitration/DiskArbitration.h>
31 // #include <QuartzCore/QuartzCore.h>
32 // #include <Quartz/Quartz.h>
33 // #include <IOKit/IOKitLib.h>
35 // It includes the basic definitions for the test cases below.
36 //===----------------------------------------------------------------------===//
38 typedef unsigned int __darwin_natural_t;
39 typedef unsigned long uintptr_t;
40 typedef unsigned int uint32_t;
41 typedef unsigned long long uint64_t;
42 typedef unsigned int UInt32;
43 typedef signed long CFIndex;
48 static __inline__ __attribute__((always_inline)) CFRange CFRangeMake(CFIndex loc, CFIndex len) {
54 typedef const void * CFTypeRef;
55 typedef const struct __CFString * CFStringRef;
56 typedef const struct __CFAllocator * CFAllocatorRef;
57 extern const CFAllocatorRef kCFAllocatorDefault;
58 extern CFTypeRef CFRetain(CFTypeRef cf);
59 extern void CFRelease(CFTypeRef cf);
63 extern const CFArrayCallBacks kCFTypeArrayCallBacks;
64 typedef const struct __CFArray * CFArrayRef;
65 typedef struct __CFArray * CFMutableArrayRef;
66 extern CFMutableArrayRef CFArrayCreateMutable(CFAllocatorRef allocator, CFIndex capacity, const CFArrayCallBacks *callBacks);
67 void abort(void) __attribute__((noreturn));
68 CFArrayRef CFArrayCreate(CFAllocatorRef allocator, const void **values, CFIndex numValues, const CFArrayCallBacks *callBacks);
69 extern const void *CFArrayGetValueAtIndex(CFArrayRef theArray, CFIndex idx);
70 extern void CFArrayAppendValue(CFMutableArrayRef theArray, const void *value);
73 CFDictionaryKeyCallBacks;
74 extern const CFDictionaryKeyCallBacks kCFTypeDictionaryKeyCallBacks;
77 CFDictionaryValueCallBacks;
78 extern const CFDictionaryValueCallBacks kCFTypeDictionaryValueCallBacks;
79 typedef const struct __CFDictionary * CFDictionaryRef;
80 typedef struct __CFDictionary * CFMutableDictionaryRef;
81 extern CFMutableDictionaryRef CFDictionaryCreateMutable(CFAllocatorRef allocator, CFIndex capacity, const CFDictionaryKeyCallBacks *keyCallBacks, const CFDictionaryValueCallBacks *valueCallBacks);
82 typedef UInt32 CFStringEncoding;
84 kCFStringEncodingMacRoman = 0, kCFStringEncodingWindowsLatin1 = 0x0500, kCFStringEncodingISOLatin1 = 0x0201, kCFStringEncodingNextStepLatin = 0x0B01, kCFStringEncodingASCII = 0x0600, kCFStringEncodingUnicode = 0x0100, kCFStringEncodingUTF8 = 0x08000100, kCFStringEncodingNonLossyASCII = 0x0BFF , kCFStringEncodingUTF16 = 0x0100, kCFStringEncodingUTF16BE = 0x10000100, kCFStringEncodingUTF16LE = 0x14000100, kCFStringEncodingUTF32 = 0x0c000100, kCFStringEncodingUTF32BE = 0x18000100, kCFStringEncodingUTF32LE = 0x1c000100 };
85 extern CFStringRef CFStringCreateWithCString(CFAllocatorRef alloc, const char *cStr, CFStringEncoding encoding);
86 extern CFStringRef CFStringCreateCopy(CFAllocatorRef alloc, CFStringRef theString);
87 typedef double CFTimeInterval;
88 typedef CFTimeInterval CFAbsoluteTime;
89 extern CFAbsoluteTime CFAbsoluteTimeGetCurrent(void);
90 typedef const struct __CFDate * CFDateRef;
91 extern CFDateRef CFDateCreate(CFAllocatorRef allocator, CFAbsoluteTime at);
92 extern CFAbsoluteTime CFDateGetAbsoluteTime(CFDateRef theDate);
93 typedef __darwin_natural_t natural_t;
94 typedef natural_t mach_port_name_t;
95 typedef mach_port_name_t mach_port_t;
96 typedef int kern_return_t;
97 typedef kern_return_t mach_error_t;
99 kCFNumberSInt8Type = 1, kCFNumberSInt16Type = 2, kCFNumberSInt32Type = 3, kCFNumberSInt64Type = 4, kCFNumberFloat32Type = 5, kCFNumberFloat64Type = 6, kCFNumberCharType = 7, kCFNumberShortType = 8, kCFNumberIntType = 9, kCFNumberLongType = 10, kCFNumberLongLongType = 11, kCFNumberFloatType = 12, kCFNumberDoubleType = 13, kCFNumberCFIndexType = 14, kCFNumberNSIntegerType = 15, kCFNumberCGFloatType = 16, kCFNumberMaxType = 16 };
100 typedef CFIndex CFNumberType;
101 typedef const struct __CFNumber * CFNumberRef;
102 extern CFNumberRef CFNumberCreate(CFAllocatorRef allocator, CFNumberType theType, const void *valuePtr);
103 typedef const struct __CFAttributedString *CFAttributedStringRef;
104 typedef struct __CFAttributedString *CFMutableAttributedStringRef;
105 extern CFAttributedStringRef CFAttributedStringCreate(CFAllocatorRef alloc, CFStringRef str, CFDictionaryRef attributes) ;
106 extern CFMutableAttributedStringRef CFAttributedStringCreateMutableCopy(CFAllocatorRef alloc, CFIndex maxLength, CFAttributedStringRef aStr) ;
107 extern void CFAttributedStringSetAttribute(CFMutableAttributedStringRef aStr, CFRange range, CFStringRef attrName, CFTypeRef value) ;
108 typedef signed char BOOL;
109 typedef unsigned long NSUInteger;
110 @class NSString, Protocol;
111 extern void NSLog(NSString *format, ...) __attribute__((format(__NSString__, 1, 2)));
112 typedef struct _NSZone NSZone;
113 @class NSInvocation, NSMethodSignature, NSCoder, NSString, NSEnumerator;
115 - (BOOL)isEqual:(id)object;
118 - (oneway void)release;
120 @end @protocol NSCopying - (id)copyWithZone:(NSZone *)zone;
121 @end @protocol NSMutableCopying - (id)mutableCopyWithZone:(NSZone *)zone;
122 @end @protocol NSCoding - (void)encodeWithCoder:(NSCoder *)aCoder;
124 @interface NSObject <NSObject> {}
125 + (id)allocWithZone:(NSZone *)zone;
130 @interface NSObject (NSCoderMethods)
131 - (id)awakeAfterUsingCoder:(NSCoder *)aDecoder;
133 extern id NSAllocateObject(Class aClass, NSUInteger extraBytes, NSZone *zone);
136 NSFastEnumerationState;
137 @protocol NSFastEnumeration - (NSUInteger)countByEnumeratingWithState:(NSFastEnumerationState *)state objects:(id *)stackbuf count:(NSUInteger)len;
138 @end @class NSString, NSDictionary;
139 @interface NSValue : NSObject <NSCopying, NSCoding> - (void)getValue:(void *)value;
140 @end @interface NSNumber : NSValue - (char)charValue;
141 - (id)initWithInt:(int)value;
142 @end @class NSString;
143 @interface NSArray : NSObject <NSCopying, NSMutableCopying, NSCoding, NSFastEnumeration> - (NSUInteger)count;
144 @end @interface NSArray (NSArrayCreation) + (id)array;
145 @end @interface NSAutoreleasePool : NSObject {
148 @end extern NSString * const NSBundleDidLoadNotification;
149 typedef double NSTimeInterval;
150 @interface NSDate : NSObject <NSCopying, NSCoding> - (NSTimeInterval)timeIntervalSinceReferenceDate;
151 @end typedef unsigned short unichar;
152 @interface NSString : NSObject <NSCopying, NSMutableCopying, NSCoding> - (NSUInteger)length;
153 - ( const char *)UTF8String;
154 - (id)initWithUTF8String:(const char *)nullTerminatedCString;
155 + (id)stringWithUTF8String:(const char *)nullTerminatedCString;
156 @end @class NSString, NSURL, NSError;
157 @interface NSData : NSObject <NSCopying, NSMutableCopying, NSCoding> - (NSUInteger)length;
158 + (id)dataWithBytesNoCopy:(void *)bytes length:(NSUInteger)length;
159 + (id)dataWithBytesNoCopy:(void *)bytes length:(NSUInteger)length freeWhenDone:(BOOL)b;
160 @end @class NSLocale, NSDate, NSCalendar, NSTimeZone, NSError, NSArray, NSMutableDictionary;
161 @interface NSDictionary : NSObject <NSCopying, NSMutableCopying, NSCoding, NSFastEnumeration> - (NSUInteger)count;
162 @end @interface NSMutableDictionary : NSDictionary - (void)removeObjectForKey:(id)aKey;
163 - (void)setObject:(id)anObject forKey:(id)aKey;
164 @end @interface NSMutableDictionary (NSMutableDictionaryCreation) + (id)dictionaryWithCapacity:(NSUInteger)numItems;
165 @end typedef double CGFloat;
168 typedef struct CGSize CGSize;
171 typedef struct CGRect CGRect;
172 typedef mach_port_t io_object_t;
173 typedef char io_name_t[128];
174 typedef io_object_t io_iterator_t;
175 typedef io_object_t io_service_t;
176 typedef struct IONotificationPort * IONotificationPortRef;
177 typedef void (*IOServiceMatchingCallback)( void * refcon, io_iterator_t iterator );
178 io_service_t IOServiceGetMatchingService( mach_port_t mainPort, CFDictionaryRef matching );
179 kern_return_t IOServiceGetMatchingServices( mach_port_t mainPort, CFDictionaryRef matching, io_iterator_t * existing );
180 kern_return_t IOServiceAddNotification( mach_port_t mainPort, const io_name_t notificationType, CFDictionaryRef matching, mach_port_t wakePort, uintptr_t reference, io_iterator_t * notification ) __attribute__((deprecated));
181 kern_return_t IOServiceAddMatchingNotification( IONotificationPortRef notifyPort, const io_name_t notificationType, CFDictionaryRef matching, IOServiceMatchingCallback callback, void * refCon, io_iterator_t * notification );
182 CFMutableDictionaryRef IOServiceMatching( const char * name );
183 CFMutableDictionaryRef IOServiceNameMatching( const char * name );
184 CFMutableDictionaryRef IOBSDNameMatching( mach_port_t mainPort, uint32_t options, const char * bsdName );
185 CFMutableDictionaryRef IOOpenFirmwarePathMatching( mach_port_t mainPort, uint32_t options, const char * path );
186 CFMutableDictionaryRef IORegistryEntryIDMatching( uint64_t entryID );
187 typedef struct __DASession * DASessionRef;
188 extern DASessionRef DASessionCreate( CFAllocatorRef allocator );
189 typedef struct __DADisk * DADiskRef;
190 extern DADiskRef DADiskCreateFromBSDName( CFAllocatorRef allocator, DASessionRef session, const char * name );
191 extern DADiskRef DADiskCreateFromIOMedia( CFAllocatorRef allocator, DASessionRef session, io_service_t media );
192 extern CFDictionaryRef DADiskCopyDescription( DADiskRef disk );
193 extern DADiskRef DADiskCopyWholeDisk( DADiskRef disk );
194 @interface NSTask : NSObject - (id)init;
195 @end typedef struct CGColorSpace *CGColorSpaceRef;
196 typedef struct CGImage *CGImageRef;
197 typedef struct CGLayer *CGLayerRef;
198 @interface NSResponder : NSObject <NSCoding> {
200 @end @protocol NSAnimatablePropertyContainer - (id)animator;
201 @end extern NSString *NSAnimationTriggerOrderIn ;
202 @interface NSView : NSResponder <NSAnimatablePropertyContainer> {
204 @end @protocol NSValidatedUserInterfaceItem - (SEL)action;
205 @end @protocol NSUserInterfaceValidations - (BOOL)validateUserInterfaceItem:(id <NSValidatedUserInterfaceItem>)anItem;
206 @end @class NSDate, NSDictionary, NSError, NSException, NSNotification;
207 @interface NSApplication : NSResponder <NSUserInterfaceValidations> {
210 NSTerminateCancel = 0, NSTerminateNow = 1, NSTerminateLater = 2 };
211 typedef NSUInteger NSApplicationTerminateReply;
212 @protocol NSApplicationDelegate <NSObject> @optional - (NSApplicationTerminateReply)applicationShouldTerminate:(NSApplication *)sender;
213 @end @class NSAttributedString, NSEvent, NSFont, NSFormatter, NSImage, NSMenu, NSText, NSView, NSTextView;
214 @interface NSCell : NSObject <NSCopying, NSCoding> {
216 @end @class NSTextField, NSPanel, NSArray, NSWindow, NSImage, NSButton, NSError;
220 @interface CIImage : NSObject <NSCoding, NSCopying> {
222 typedef int CIFormat;
224 kDAReturnSuccess = 0, kDAReturnError = (((0x3eU)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x01, kDAReturnBusy = (((0x3eU)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x02, kDAReturnBadArgument = (((0x3eU)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x03, kDAReturnExclusiveAccess = (((0x3eU)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x04, kDAReturnNoResources = (((0x3eU)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x05, kDAReturnNotFound = (((0x3eU)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x06, kDAReturnNotMounted = (((0x3eU)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x07, kDAReturnNotPermitted = (((0x3eU)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x08, kDAReturnNotPrivileged = (((0x3eU)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x09, kDAReturnNotReady = (((0x3eU)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x0A, kDAReturnNotWritable = (((0x3eU)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x0B, kDAReturnUnsupported = (((0x3eU)&0x3f)<<26) | (((0x368)&0xfff)<<14) | 0x0C };
225 typedef mach_error_t DAReturn;
226 typedef const struct __DADissenter * DADissenterRef;
227 extern DADissenterRef DADissenterCreate( CFAllocatorRef allocator, DAReturn status, CFStringRef string );
228 @interface CIContext: NSObject {
230 - (CGImageRef)createCGImage:(CIImage *)im fromRect:(CGRect)r;
231 - (CGImageRef)createCGImage:(CIImage *)im fromRect:(CGRect)r format:(CIFormat)f colorSpace:(CGColorSpaceRef)cs;
232 - (CGLayerRef)createCGLayerWithSize:(CGSize)size info:(CFDictionaryRef)d;
233 @end extern NSString* const QCRendererEventKey;
234 @protocol QCCompositionRenderer - (NSDictionary*) attributes;
235 @end @interface QCRenderer : NSObject <QCCompositionRenderer> {
237 - (id) createSnapshotImageOfType:(NSString*)type;
238 @end extern NSString* const QCViewDidStartRenderingNotification;
239 @interface QCView : NSView <QCCompositionRenderer> {
241 - (id) createSnapshotImageOfType:(NSString*)type;
243 ICEXIFOrientation1 = 1, ICEXIFOrientation2 = 2, ICEXIFOrientation3 = 3, ICEXIFOrientation4 = 4, ICEXIFOrientation5 = 5, ICEXIFOrientation6 = 6, ICEXIFOrientation7 = 7, ICEXIFOrientation8 = 8, };
245 @protocol ICDeviceDelegate <NSObject> @required - (void)didRemoveDevice:(ICDevice*)device;
246 @end extern NSString *const ICScannerStatusWarmingUp;
247 @class ICScannerDevice;
248 @protocol ICScannerDeviceDelegate <ICDeviceDelegate> @optional - (void)scannerDeviceDidBecomeAvailable:(ICScannerDevice*)scanner;
251 typedef long unsigned int __darwin_size_t;
252 typedef __darwin_size_t size_t;
253 typedef unsigned long CFTypeID;
258 typedef struct CGPoint CGPoint;
259 typedef struct CGGradient *CGGradientRef;
260 typedef uint32_t CGGradientDrawingOptions;
261 extern CFTypeID CGGradientGetTypeID(void);
262 extern CGGradientRef CGGradientCreateWithColorComponents(CGColorSpaceRef
263 space, const CGFloat components[], const CGFloat locations[], size_t count);
264 extern CGGradientRef CGGradientCreateWithColors(CGColorSpaceRef space,
265 CFArrayRef colors, const CGFloat locations[]);
266 extern CGGradientRef CGGradientRetain(CGGradientRef gradient);
267 extern void CGGradientRelease(CGGradientRef gradient);
268 typedef struct CGContext *CGContextRef;
269 extern void CGContextDrawLinearGradient(CGContextRef context,
270 CGGradientRef gradient, CGPoint startPoint, CGPoint endPoint,
271 CGGradientDrawingOptions options);
272 extern CGColorSpaceRef CGColorSpaceCreateDeviceRGB(void);
273 //===----------------------------------------------------------------------===//
275 //===----------------------------------------------------------------------===//
280 SmartPointer(id x) : x(x) {}
281 ~SmartPointer() { [x release]; }
287 void test_positive() {
288 id x = [[NSObject alloc] init]; // expected-warning {{leak}}
291 void test_smartpointer_1() {
292 id x = [[NSObject alloc] init]; // no-warning
296 void test_smartpointer_2() {
297 id x = [[NSObject alloc] init]; // no-warning
302 // FIXME: Eventually we want annotations to say whether or not
303 // a C++ method claims ownership of an Objective-C object.
304 void test_smartpointer_3() {
305 id x = [[NSObject alloc] init]; // no-warning
310 void test_smartpointer_4() {
311 id x = [[NSObject alloc] init]; // no-warning
312 SmartPointer *foo = new SmartPointer(x);
316 extern CFStringRef ElectronMicroscopyEngage(void);
317 void test_microscopy() {
318 NSString *token = (NSString*) ElectronMicroscopyEngage();
319 [token release]; // expected-warning {{object that is not owned}}
322 extern CFStringRef Scopy(void);
324 NSString *token = (NSString*) Scopy();
325 [token release]; // expected-warning {{object that is not owned}}
328 //===----------------------------------------------------------------------===//
329 // Test handling of template functions used to do magic with
330 // tracked retained pointers.
331 //===----------------------------------------------------------------------===//
333 template <typename T, typename U> T static_objc_cast(U* value)
335 // ...debugging code omitted...
336 return static_cast<T>(value);
339 int rdar10553686(void)
341 NSObject* bar = static_objc_cast<NSObject*>([[NSObject alloc] init]);
345 int rdar10553686_positive(void)
347 NSObject* bar = static_objc_cast<NSObject*>([[NSObject alloc] init]);
349 [bar retain]; // expected-warning {{used after it is released}}
353 @interface NSMapTable : NSObject <NSCopying, NSCoding, NSFastEnumeration>
355 extern void *NSMapGet(NSMapTable *table, const void *key);
356 extern void NSMapInsert(NSMapTable *table, const void *key, const void *value);
357 extern void NSMapInsertKnownAbsent(NSMapTable *table, const void *key, const void *value);
358 char *strdup(const char *s);
360 NSString * radar11152419(NSString *string1, NSString *key1, NSMapTable *map) {
361 NSString *string = ( NSString *)NSMapGet(map, key1);
363 string = [string1 copy];
364 NSString *key = [key1 copy];
365 NSMapInsert(map, (void*) key, (void*)string); // no warning
366 NSMapInsertKnownAbsent(map, (void*)key, (void*)string); // no warning
371 //===----------------------------------------------------------------------===//
372 // Don't crash on non-member functions with "callbacks" but without names.
373 //===----------------------------------------------------------------------===//
379 int operator>> (const IntWrapper &W, int (*f)(int)) {
383 void testCallback() {
384 IntWrapper val = { 42 };
386 extern int process(int);
390 //===----------------------------------------------------------------------===//
391 // Test handling static initializers.
392 //===----------------------------------------------------------------------===//
394 @interface radar13227740 : NSObject
397 @implementation radar13227740
399 static CFArrayRef array = ::CFArrayCreate(0, 0, 0, 0);
400 do { if (!((0 != array)/1)) { abort(); } } while (false);
404 // Previously this reported a bogus leak.
411 //===----------------------------------------------------------------------===//
412 // Don't crash on getting a null expression from CallEnter corresponding to a
414 //===----------------------------------------------------------------------===//
416 template <typename X>
421 X* get() const throw();
422 void reset(X* p) throw();
429 Holder<X>::Holder() throw()
432 template <typename X>
434 X* Holder<X>::get() const throw() {
438 template <typename X>
440 void Holder<X>::reset(X* p) throw() {
449 class radar13722286 {
453 void PrepareBitmap();
454 Holder<const struct __CFString> mStr;
457 void radar13722286::PrepareBitmap() {
458 if (mStr.get() != 0) {
459 Holder<const struct __CFString> str1;
460 mStr.reset( CFStringCreateCopy( 0, str1.get() ) ); //expected-warning {{Potential leak of an object}}
465 void _() { _(); }; // no-warning
467 // Do not assume that IOBSDNameMatching increments a reference counter,
468 // unless return type is CFMutableDictionaryRef.
469 void* IOBSDNameMatching();
470 void rdar33832412() {
471 void* x = IOBSDNameMatching(); // no-warning
474 namespace member_CFRetains {
477 void CFRetain(const Foo &) {}
478 void CFRetain(int) {}
483 foo.CFRetain(foo); // no-warning
484 foo.CFRetain(0); // no-warning
488 namespace cxx_method_escaping {
491 static CFArrayRef testGetNoTracking();
492 CFArrayRef testGetNoTrackingMember();
495 void test_cxx_static_method_escaping() {
496 CFArrayRef arr = S::testGetNoTracking();
500 void test_cxx_method_escaping(S *s) {
501 CFArrayRef arr = s->testGetNoTrackingMember();
507 namespace yet_another_unexpected_signature_crash {
509 CFTypeRef CFSomethingSomethingRetain();
510 CFTypeRef CFSomethingSomethingAutorelease();
513 CFSomethingSomethingRetain(); // no-crash
514 CFSomethingSomethingAutorelease(); // no-crash
519 namespace reinterpret_casts {
522 void *p = const_cast<void *>(
523 reinterpret_cast<const void *>(CFArrayCreate(0, 0, 0, 0)));
524 void *q = reinterpret_cast<void *>(
525 reinterpret_cast<char *>(p) + 1);
526 // FIXME: Should warn about a leak here. The function should return at +0,
527 // but it returns at +1 instead.
532 void *p = const_cast<void *>(
533 reinterpret_cast<const void *>(CFArrayCreate(0, 0, 0, 0)));
534 void *q = reinterpret_cast<void *>(
535 reinterpret_cast<char *>(p) + 1);
536 // The function follows the Create Rule.
537 return q; // no-warning
540 void *fooBar() CF_RETURNS_RETAINED {
541 void *p = const_cast<void *>(
542 reinterpret_cast<const void *>(CFArrayCreate(0, 0, 0, 0)));
543 void *q = reinterpret_cast<void *>(
544 reinterpret_cast<char *>(p) + 1);
545 // The function follows the Create Rule.
546 return q; // no-warning