trojanfoe

#import <Foundation/Foundation.h>

static void nextMonth(NSDateComponents *comps) {
    NSInteger month = [comps month];
    if (month == 12) {
        [comps setYear:[comps year] + 1];
        [comps setMonth:1];
    } else {
        [comps setMonth:month + 1];
    }

trojanfoe

$ cat locktest.m
#import <Foundation/Foundation.h>

@interface Locker : NSObject {
    NSRecursiveLock *_lock;
}
- (void)setLock:(NSRecursiveLock *)lock;
@end

@implementation Locker

trojanfoe

#import <Foundation/Foundation.h>

int main(int argc, const char **argv) {
    @autoreleasepool {
        NSMutableArray *mutableArray;
        NSString *str = @"one two three";
        mutableArray = [[str componentsSeparatedByString:@" "] copy];
        [mutableArray addObject:@"four"];
        for (NSString *s in mutableArray) {
            NSLog(@"%@", s);