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andrey-str/singleton.m

Forked from abbeyjackson/sharedInstance Singleton
Created May 4, 2016 13:35
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sharedInstance singleton
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singleton.m
+ (instancetype)sharedInstance
{
static dispatch_once_t once;
static id sharedInstance;
dispatch_once(&once, ^{
sharedInstance = [[self alloc] init];
});
return sharedInstance;
}
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