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fix case where hll_error_margin could be undefined (thanks John)

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This commit is contained in:
Bernhard Amann 2013-09-11 12:50:29 -07:00
parent 7c1dffa66f
commit 9834755948
1 changed files with 10 additions and 1 deletions
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11
scripts/base/frameworks/sumstats/plugins/hll_unique.bro
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@ -55,9 +55,18 @@ hook compose_resultvals_hook(result: ResultVal, rv1: ResultVal, rv2: ResultVal)
if ( ! (rv1?$card || rv2?$card) )
return;
local rhll = hll_cardinality_init(rv1$hll_error_margin, rv1$hll_confidence);
local rhll: opaque of cardinality;
if ( rv1?$card )
{
rhll = hll_cardinality_init(rv1$hll_error_margin, rv1$hll_confidence);
hll_cardinality_merge_into(rhll, rv1$card);
}
else # if we do not have rv1, we have to have rv2...
{
rhll = hll_cardinality_init(rv2$hll_error_margin, rv2$hll_confidence);
}
if ( rv2?$card )
hll_cardinality_merge_into(rhll, rv2$card);