本文介绍了赋值使指针从整数而不进行强制转换的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我不明白这里有什么问题!在我编译它之后,总是告诉我:赋值使指针从整数而不进行强制转换"我不知道是什么问题!请让我,谢谢.
I don't understand what is problem here! after I compile it, always show me: "assignment makes pointer from integer without a cast" I don't know what is the problem! Please let me, thanks.
保存
NSUserDefaults *percentChecker = [NSUserDefaults standardUserDefaults];
[percentChecker setInteger:0 forKey:percentCheckerSaveKey];
<小时>
加载
NSUserDefaults *percentChecker = [NSUserDefaults standardUserDefaults];
NSString *percentString;
//Alert!
percentString = [percentChecker integerForKey:percentCheckerSaveKey];
推荐答案
这正是它告诉你的.percentString
是一个指针,但 integerForKey:
返回一个整数.将该整数分配给指针是在从没有强制转换的整数中创建指针".为什么要保存一个整数并稍后尝试将其作为字符串加载?
It's exactly what it's telling you. percentString
is a pointer, but integerForKey:
returns an integer. Assigning that integer to a pointer is making a "pointer from an integer without a cast". Why are you saving an integer and trying to load it later as a string?
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