xcode 分配给 'BOOL 的不兼容整数到指针转换
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Incompatible integer to pointer conversion assigning to 'BOOL
提问by Coder
I just inherent a new app from a previous programmer and keep on running into a "Incompatible integer to pointer conversion assigning to 'BOOL *' (aka 'bool *') from 'BOOL' (aka 'bool') ".
我只是从以前的程序员那里继承了一个新应用程序，并继续遇到“不兼容的整数到指针转换，从 'BOOL'（又名'bool'）分配给'BOOL *'（又名'bool *'）”。
Code like such as
代码如
_backButtonPressed = YES;
_isEdited = YES;
come up with the same error. I tried *(_backButtonPressed) = YES; and *_backButtonPressed = Yes, but both scenarios crashes the program.
提出同样的错误。我试过 *(_backButtonPressed) = YES; 和 *_backButtonPressed = Yes，但这两种情况都会使程序崩溃。
Program still work if I leave it alone, but I wanted to keep the code clean. Any suggestion?
如果我不理会它，程序仍然可以工作，但我想保持代码干净。有什么建议吗？
回答by
My guess is that the two variables in question were declared incorrectly. For example, _backButtonPressed is probably declared as
我的猜测是有问题的两个变量声明不正确。例如，_backButtonPressed 可能被声明为
BOOL* _backButtonPressed;
but should be
但应该是
BOOL _backButtonPressed;
The crash occurs because _backButtonPress is not a pointer: if it was, there would be a statement like _backButtonPressed = (BOOL*)malloc(sizeof(BOOL)); somewhere. If this was not done before you try to assign to *(_backButtonPressed), then you will see a crash.
发生崩溃是因为 _backButtonPress 不是一个指针：如果是，就会有像 _backButtonPressed = (BOOL*)malloc(sizeof(BOOL)); 这样的语句。某处。如果在您尝试分配给 *(_backButtonPressed) 之前没有这样做，那么您将看到崩溃。
It is easy to make the mistake of declaring BOOL* instead of BOOL, because Cocoa objects are always declared with the *
声明 BOOL* 而不是 BOOL 很容易犯错误，因为 Cocoa 对象总是用 * 声明
I recommend that you fix the declarations. I am pretty sure everything will work if you do that.
我建议您修复声明。如果你这样做，我很确定一切都会奏效。
