On 12/12/2017 01:19 PM, David Laight wrote: > From: Andrey Ryabinin >> Sent: 11 December 2017 16:44 > ... >> I suppose that depends on which one strscpy() caller you'd want to test. >> Briefly looking at all current users, it doesn't look like they process huge >> amounts >> of data through strscpy(), thus we shouldn't suffer from a slight >> performance degradation of strscpy(). > > Don't most of the fast string functions use the same kind of > optimisations. > strlen() is very likely to do 64 bit reads and then shifts (etc) > to determine whether any of the bytes are zero. >
See for yourself, strscpy() is the only sting function doing this. > David >
