gistfile1.m

// Stolen from Tumblr
#define PTH_INVALID_INITIALIZER(initDeclaration) \
_Pragma("clang diagnostic push") \
_Pragma("clang diagnostic ignored \"-Wobjc-designated-initializers\"") \
- (instancetype)initDeclaration { \
@throw [[NSException alloc] initWithName:@"Invalid initializer" reason:[NSString stringWithFormat:@"The initializer %s is not available.", __PRETTY_FUNCTION__] userInfo:nil]; \
return nil; \
} \
_Pragma("clang diagnostic pop")