pragma clang diagnostic push

pragma clang diagnostic ignored "-相关命令"

//需要操作的代码

pragma clang diagnostic pop

1：忽略弃用的警告⚠️
//方法弃用告警

pragma clang diagnostic push

pragma clang diagnostic ignored "-Wdeprecated-declarations"

UIAlertView *alertViewTmp = [[UIAlertView alloc]initWithTitle:@"" message:@"" delegate:nil cancelButtonTitle:@"" otherButtonTitles:@"", nil];
[alertViewTmp show];

pragma clang diagnostic pop

2：忽略不兼容指针类型⚠️
// 不兼容指针类型

pragma clang diagnostic push

pragma clang diagnostic ignored "-Wincompatible-pointer-types"

//

pragma clang diagnostic pop

3：循环引用⚠️
break the retain cycle.

pragma clang diagnostic push

pragma clang diagnostic ignored "-Warc-retain-cycles"

// self.completionBlock = ^ {
// ...
// };

pragma clang diagnostic pop

4：未使用变量⚠
// 未使用变量

pragma clang diagnostic push

pragma clang diagnostic ignored "-Wunused-variable"

int a;

pragma clang diagnostic pop

5.未使用默认⚠️

pragma clang diagnostic push

pragma clang diagnostic ignored "-Wcovered-switch-default"

// switch (style) {
// case UITableViewCellStyleDefault:
// case UITableViewCellStyleValue1:
// case UITableViewCellStyleValue2:
// case UITableViewCellStyleSubtitle:
// // ...
// default:
// return;
// }

pragma clang diagnostic pop