#import <UIKit/UIKit.h>

#import "AppDelegate.h"

@interface Something : NSObject

- (void)doWithError:(NSError **)outError;

@end

@implementation Something

- (void)doWithError:(NSError **)outError

{

    @autoreleasepool

    {

        *outError = [NSError errorWithDomain:@"Emergency" code:999 userInfo:nil];

    }

}

@end

int main(int argc, const char *argv[])

{

    @autoreleasepool

    {

        NSError *error = nil;


　　　　　// Sometimes EXC_BAD_ACCESS when return from this method.

        [[[Something alloc] init] doWithError:&error];

        // At this point, the main thread gives EXC_BAD_ACCESS.

        NSLog(@"%@", error);

    }

    return 0;

}

@interface Something : NSObject

- (void)doWithError:(NSError **)outError;

@end

@implementation Something

- (void)doWithError:(NSError **)outError

{

    NSError *error = nil;

    @autoreleasepool

    {

        error = [NSError errorWithDomain:@"Emergency" code:999 userInfo:nil];

        // Do something

    }

    if(error)

    {

        *outError = error;

    }

}

@end

int main(int argc, char * argv[])

{

    @autoreleasepool

    {

        NSError *__autoreleasing error = nil;

        [[[Something alloc] init] doWithError:&error];

        // At this point, the main thread gives EXC_BAD_ACCESS.

        NSLog(@"%@", error);

        int a = 1;

        ++a;

    }

    return 0;

}