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

[Daniel O'Connor]

On 16/07/2010, at 18:57, Oliver Fromme wrote:
>> Just wondering.
> 
> 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
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