Singletons

gistfile1.m

@implementation MySingleton

+ (MySingleton*)singleton {
    static MySingleton* __singleton = nil;
    static dispatch_once_t onceToken;
    dispatch_once(&onceToken, ^{
        __singleton = [[MySingleton alloc] init];
    });
    return __singleton;
}

@end

OR

@implementation MySingleton

+ (id)singleton {
    static MySingleton* __singleton = nil;
    static dispatch_once_t onceToken;
    dispatch_once(&onceToken, ^{
        __singleton = [[MySingleton alloc] init];
    });
    return __singleton;
}

@end

First one. With a "@Class MySingleton;" above the @interface.

"@Class MySingleton;" I mean.

Shit. @Class with a lower case c.