你能否为错误显示编译器警告：nil？-Canyoushowcompilerwarningsforerror:nil?

Is there a compiler setting that can warn about these? Currently I'm reviewing code and putting in #warning don't use error:nil whenever I see them.

是否有可以警告这些的编译器设置?目前我正在审查代码并输入#warning不会在我看到它们时使用错误:nil。

(I know it's sometimes appropriate to do, but maybe there is a better way to have the compiler check sloppy error handling?)

(我知道有时这样做是合适的,但也许有更好的方法让编译器检查草率错误处理?)

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