[clug] Code question: Why doesn't this seqfault (kernel/printk.c)
david.price at anu.edu.au
Mon Oct 20 12:39:38 EST 2003
On Mon, Oct 20, 2003 at 12:32:16PM +1000, Darren Freeman wrote:
> IIRC there is no guarantee in C that this is the case, although it's
> often true.
Just went looking for a copy of the standard, found one at:
Page 89 (ps page 101) has this to say:
Unlike the bitwise | operator, the || operator guarantees
left-to-right evaluation; there is a sequence point after the
evaluation of the first operand. If the first operand compares unequal
to 0, the second operand is not evaluated.
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