Re: is strlen()'s read-4-bytes-ahead a standard?

On 16/07/2010, at 18:57, Oliver Fromme wrote:
>> Just wondering.
>=20
> There's no reason not to read the string as aligned words.
> Because they're aligned, there's no risk to accidentally
> hit the next VM page after the end of the string.

Unless you're calling strlen on something that isn't memory (eg memory =
mapped device).

Although that would be dumb precisely because you don't know how it's =
implemented.

Also the compiler would warn you because your mmap'd device pointer =
should be declared volatile anyway..

--
Daniel O'Connor software and network engineer
for Genesis Software - http://www.gsoft.com.au
"The nice thing about standards is that there
are so many of them to choose from."
  -- Andrew Tanenbaum
GPG Fingerprint - 5596 B766 97C0 0E94 4347 295E E593 DC20 7B3F CE8C






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