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#import "ObjectTesting.h"
#import <Foundation/NSArray.h>
#import <Foundation/NSAutoreleasePool.h>
#import <AppKit/NSApplication.h>
#import <AppKit/NSBitmapImageRep.h>
#import <AppKit/NSGraphics.h>
int main()
{
NSAutoreleasePool *arp = [NSAutoreleasePool new];
NSBitmapImageRep *origBitmap, *copy1Bitmap, *copy2Bitmap;
origBitmap = [[NSBitmapImageRep alloc] initWithBitmapDataPlanes: NULL
pixelsWide: 4
pixelsHigh: 4
bitsPerSample: 8
samplesPerPixel: 4
hasAlpha: YES
isPlanar: NO
colorSpaceName: NSCalibratedRGBColorSpace
bytesPerRow: 0
bitsPerPixel: 0];
copy1Bitmap = [origBitmap copy];
// Copying immutable NSData reuses the data pointer instead of allocating new memory, so
// copying a bitmap with immutable _imageData causes both bitmaps to point to the same memory;
// Writing to either copy's pixels will overwrite both, corrupting the image data
copy2Bitmap = [copy1Bitmap copy];
pass([copy1Bitmap bitmapData] != [copy2Bitmap bitmapData],
"Copied bitmaps have a different image data pointer - could cause image data corruption.");
DESTROY(copy1Bitmap);
DESTROY(copy2Bitmap);
DESTROY(origBitmap);
[arp release];
return 0;
}
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