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                            ## sigdelset ##

從信號集里刪除一個信號

### 相關函數 ###

sigemptyset，sigfillset，sigaddset，sigismember

### 表頭文件 ###

```
#include<signal.h>
```

### 定義函數 ###

```
int sigdelset(sigset_t *set, int signum);
```

### 函數說明 ###

sigdelset()用來將參數signum代表的信號從參數set信號集里刪除。

### 返回值 ###

執行成功則返回0，如果有錯誤則返回-1。

### 錯誤代碼 ###

EFAULT 參數set指針地址無法存取
EINVAL 參數signum非合法的信號編號


                    
                
        
                
            
        
                
    
                
    
                
        
                
    
                

                







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