xcode 不兼容的整数转换指针将“void *”发送到“NSJSONReadingOptions”类型的参数

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时间:2020-09-15 02:53:12  来源:igfitidea点击:

Incompatible pointer to integer conversion sending 'void *' to parameter of type 'NSJSONReadingOptions'

iphoneiosobjective-cxcode

提问by Brandon

I am getting a weird compiler warning. It says:

我收到一个奇怪的编译器警告。它说:

Incompatible pointer to integer conversion sending 'void *' to parameter of type 
'NSJSONReadingOptions' (aka 'enum NSJSONReadingOptions') 

Here is the block that its in:

这是它所在的块:

- (void)connectionDidFinishLoading:(NSURLConnection *)connection
{
    [UIApplication sharedApplication].networkActivityIndicatorVisible = NO;

    //Incompatible pointer to integer conversion sending 'void *' to parameter of type 
    'NSJSONReadingOptions' (aka 'enum NSJSONReadingOptions')

    news = [NSJSONSerialization JSONObjectWithData:data options:nil error:nil];
    [mainTableView reloadData];
}

Any ideas how to fix this? Thank you!

任何想法如何解决这一问题?谢谢!

回答by Martin R

Just replace options:nilby options:0.

只需替换options:niloptions:0.

nilis ultimately defined as ((void*)0)and has pointer type, but NSJSONReadingOptions(as an enum) is a integer type.

nil最终定义为((void*)0)并具有指针类型,但NSJSONReadingOptions(作为枚举)是整数类型