awk: add a comment
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@ -825,6 +825,7 @@ static unsigned long getvar_i_int(var *v)
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* of target type range. Try to widen it as much as possible */
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if (d >= 0)
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return (unsigned long)d;
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/* Why? Think about d == -4294967295.0 (assuming 32bit longs) */
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return - (long) (unsigned long) (-d);
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}
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