Warningを無視する#pragma

随時追加

#ios6とかでdepricated

#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wdeprecated-declarations"
        BOOL available = [TWTweetComposeViewController canSendTweet];
#pragma clang diagnostic pop

#Category is implementing a method which will also be implemented by its primary class
カテゴリの実装でメソッドをオーバーライドするなという警告

#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wobjc-protocol-method-implementation"
- (void)addRoundedRectToPath:(CGRect)rect 
                     context:(CGContextRef)context 
                   ovalWidth:(CGFloat)ovalWidth 
                  ovalHeight:(CGFloat)ovalHeight 
{
    .....
}
#pragma clang diagnostic pop

#PerformSelector may cause a leak because its selector is unknown
ARC環境下でのワーニング。-performSelector:からの返り値をコントロールできなくて出る。

    SEL sel = @selector(doSomething);
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Warc-performSelector-leaks"
    [obj performSelector:sel];
#pragma clang diagnostic pop

#Unused parameter '****'
パラメータを使えーって言っていますので変数名の頭に__attribute__((unused))を追加。

    [hoge performRequestWithHandler:^(NSData *responseData, __attribute__((unused)) NSHTTPURLResponse *urlResponse, NSError *error) {
        completion(responseData, error);
    }];

###参考

• Objective-C警告タイプのまとめ
  
• clang document
• Compiler Warnings for Objective-C Developers
• アナライズを無視する