How do we clear out contents in NSMutableData

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Happy的楠姐
Happy的楠姐 2021-02-05 04:05

How do we clear an NSMutableData without using release and then re-alloc/init again to be used again? I was looking at resetBytesInRange to be set at zero but I am unsure of th

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  • 2021-02-05 04:07

    If you want an empty buffer:

    [data setLength:0];
    

    If you want to keep its size but set all the bytes to zero:

    [data resetBytesInRange:NSMakeRange(0, [data length])];
    
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  • 2021-02-05 04:18

    Swift version of the setting all the bytes to zero:

    data.resetBytes(in: NSRange(location:0, length:data.length))
    
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