From 1a8633f3a5eaafb03b2b5e384c7e70e04fec57d8 Mon Sep 17 00:00:00 2001
From: Seebs <seebs@seebs.net>
Date: Tue, 13 Nov 2018 13:33:52 -0600
Subject: [PATCH] use roaring conventions for variable names

Roaring likes to call things "a" and "b", not "1" and "2",
and use "n" for length, not "l", etcetera. Adopt these
conventions to make code more readable.

Also drop the 'vb' value since it isn't expensive to
compute and the compiler can figure out that it can
reuse the value.
---
 roaring/roaring.go | 25 ++++++++++++-------------
 1 file changed, 12 insertions(+), 13 deletions(-)

diff --git a/roaring/roaring.go b/roaring/roaring.go
index 6cf7eda1c..bb3c5da6e 100644
--- a/roaring/roaring.go
+++ b/roaring/roaring.go
@@ -1903,25 +1903,24 @@ func intersectionCount(a, b *Container) int32 {
 
 func intersectionCountArrayArray(a, b *Container) (n int32) {
 	statsHit("intersectionCount/ArrayArray")
-	s1, s2 := a.array, b.array
-	if len(s1) == 0 || len(s2) == 0 {
+	ca, cb := a.array, b.array
+	na, nb := len(ca), len(cb)
+	if na == 0 || nb == 0 {
 		return 0
 	}
-	if len(s1) > len(s2) {
-		s1, s2 = s2, s1
+	if na > nb {
+		ca, cb = cb, ca
+		na, nb = nb, na
 	}
-	l2 := len(s2)
-	i2 := 0
-	v2 := s2[0]
-	for _, v1 := range s1 {
-		for v2 < v1 {
-			i2++
-			if i2 >= l2 {
+	j := 0
+	for _, va := range ca {
+		for cb[j] < va {
+			j++
+			if j >= nb {
 				return n
 			}
-			v2 = s2[i2]
 		}
-		if v2 == v1 {
+		if cb[j] == va {
 			n++
 		}
 	}