Objective-c将两个参数传递给bool方法

Question

我在这里有这个NSArray方法：

-(NSArray*)User:(NSString *)user andPassWordExists:(NSString *)password

但我不再需要返回数组，只是是或否，我如何将此方法更改为BOOL方法？

-(BOOL*)User:(NSString *)user Password:(NSString *)password

上面的代码给了我这个错误：

Conflicting return type in implementation of User:Password: NSArray vs BOOL

如何将此方法更改为bool？

Answer 1

签名应为

-(BOOL)User:(NSString *)user Password:(NSString *)password

在标题和源文件中。

Answer 2

struct CheckinUser {
    bool user:YES;
    bool pwd:YES;
};
typedef struct CheckinUser CheckinUser;

-(CheckinUser)User:(NSString *)user Password:(NSString *)password
{
    CheckinUser result;
    result.user = YES;
    result.pwd  = NO;
    return result;
}