64bit - NSString stringWithFormat In Objective C getting EXC_BAD_ACCESS with iPad Pro & Xcode 8 -


i have used below function xcode 7.3, working fine ipad2 device getting exc_bad_access ipad pro, due 64 bit architecture far understanding

please suggest solution should correction can here .... 

+ (nsstring *)stringwithformat:(nsstring *)format                      array:(nsarray*)arguments {    nsrange range = nsmakerange(0, [arguments count]);    nsmutabledata* data = [nsmutabledata datawithlength:sizeof(id) *  [arguments count]];    [arguments getobjects:(__unsafe_unretained id *)data.mutablebytes range:range];    nsstring* result = [[nsstring alloc] initwithformat:format arguments:data.mutablebytes];    return result; }


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