Either way is correct. The first form evaluates both (b->ttype != TYPE_void) and b->tkey, both of which result in either 0 or 1. The single & does a bit-wise AND on those two values and results in 1 if both sides evaluated to 1. In the second form, if first part evaluates to 0, b->tkey is not evaluated, and if the first part evaluates to 1, the second part is also evaluated. The restult, again, is only 1 if both sides evaluate to 1.
So the difference is whether or not b->tkey is evaluated, and evaluating that is cheap (it's a bool value).
On 01/08/2020 20.54, Ranier Vilela wrote:
Hi,
At gdk\gdk_bat.c (line 1384) variable b->type is bool
Would be a typo? if (((b->ttype != TYPE_void) & b->tkey) && b->batCount > 1) { Should be: if (((b->ttype != TYPE_void) && b->tkey) && b->batCount > 1) {
regards, Ranier Vilela
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