Objective-C内存泄漏混乱

Question

显然,该main方法中的以下内容应导致泄漏:

NSMutableArray *strings = [[NSMutableArray alloc] init];
[strings addObject:@"Hello"];
[strings addObject:@"Howdy"];

return 0;

并且clang LLVM报告泄漏.但是,通过Hillegass本书,我尝试分析以下代码,这又不释放NSMutableArray对象:

NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];

NSMutableArray *array = [[NSMutableArray alloc] init];
NSCalendarDate *now = [[NSCalendarDate alloc] init];

for (int i=0; i < 3; i++) {
    LotteryEntry *newEntry = [[LotteryEntry alloc] init];
    NSCalendarDate *iweeksFromNow = [now dateByAddingYears:0
                                                    months:0
                                                      days:(i*7)
                                                     hours:0
                                                   minutes:0 
                                                   seconds:0];
    [newEntry setEntryDate:iweeksFromNow];
    [array addObject:newEntry];
    [newEntry release];
}

[now release];

for (LotteryEntry *entry in array) {
    NSLog(@"%@", entry);
}


[pool drain];
return 0;

这次没有报道泄漏.我错过了一些明显的东西吗

Answer 1

我不认为你是 - 静态分析仪只是错过了它.array以保留计数1结束; 如果这条线是

 NSMutableArray *array = [[[NSMutableArray alloc] init] autorelease];

然后封闭的自动释放池会照顾它,但因为它的阵列肯定仍在泄漏.