Re: var args in kernel?

[Jan Engelhardt]

>>  What you can't do is e.g.
>>   va_list ap;
>>   va_start (ap, x);
>>   bar (x, ap);
>>   bar (x, ap);
>>   va_end (ap);

In theory, you can't. But the way how GCC (and probably other compilers)
implement it, you can. Because "ap" is just a pointer (which fits into a
register, if I may add). As such, you can copy it, pass it multiple times, use
it multiple times, and whatever you like.

At least that's IIRC the way TCPP recommends you in their helpfile
(va_list src; ... va_list dest = src)



Jan Engelhardt
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