39 lines
484 B
Objective-C
39 lines
484 B
Objective-C
// SomeSingleton.m
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@implementation SomeSingleton
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+ (SomeSingleton *) sharedInstance
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{
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static SomeSingleton *sharedInstance = nil;
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if (!sharedInstance) {
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sharedInstance = [[SomeSingleton alloc] init];
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}
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return sharedInstance;
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}
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- (id)copyWithZone:(NSZone *)zone
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{
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return self;
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}
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- (id)retain
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{
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return self;
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}
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- (unsigned)retainCount
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{
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return UINT_MAX;
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}
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- (oneway void)release
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{
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// prevent release
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}
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- (id)autorelease
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{
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return self;
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}
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@end
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