alvaro at sun
May 26, 2008, 10:27 PM
Post #2 of 5
(276 views)
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On 27 May 2008, at 03:42, Stefan de Konink wrote:
> I think I cannot sleep if someone doesn't pick this one up.
>
> Could any of the core devs *verify* the correct working of
> cherokee_buffer_add
>
> Shouldn't this end up in the same output?
>
> cherokee_buffer_add(buf, "TEST", sizeof("TEST"));
I bet you meant strlen() rather than sizeof(). :-)
sizeof() gives you the total amount of memory that a certain static
data or data type requires. In this case it returns 5 because that is
actually the memory that it needed to allocate to copy the string:
"TEST\0".
> cherokee_buffer_add_str(buf, "TEST");
Yeah, this is kind of tricky. By Cherokee's notation, *_str() means
that the method works with an *STATIC* string. Even it they look very
similar there is a quite big difference between static data and
pointers to data:
/* sizeof ("hello world") = 12 */
/* strlen ("hello world") = 11 */
and
char *test = "hello world";
/* sizeof (test) = 4 */
/* strlen (test) = 11 */
.. the joys of C, you know!
> In the first line, the output gets an extra garbage char.
I hope I've got back to you quick enough for you to have some
sleeping :-)
--
Greetings, alo.
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