From 43e8b4d5a0fde24cfa2b1c102f07e2ff81e1c1f9 Mon Sep 17 00:00:00 2001
From: Daniel Lemire <daniel@lemire.me>
Date: Mon, 7 Oct 2024 17:20:51 -0400
Subject: [PATCH 1/3] issue 174

---
 bitset.go | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/bitset.go b/bitset.go
index 2e8d9ce..2f1f7ef 100644
--- a/bitset.go
+++ b/bitset.go
@@ -106,8 +106,16 @@ func From(buf []uint64) *BitSet {
 	return FromWithLength(uint(len(buf))*64, buf)
 }
 
-// FromWithLength constructs from an array of words and length.
+// FromWithLength constructs from an array of words and length in bits.
+// This function is for advanced users, most users should prefer
+// the From function.
+// As a user of FromWithLength, you are responsible for ensuring
+// that the length is correct: your slice should have length at
+// least (len+63)/64 in 64-bit words.
 func FromWithLength(len uint, set []uint64) *BitSet {
+	if uint(len(set)) < wordsNeeded(len) {
+		panic("BitSet.FromWithLength: slice is too short")
+	}
 	return &BitSet{len, set}
 }
 

From c2536d3054d32e07ffe639dac129348047ae4d4c Mon Sep 17 00:00:00 2001
From: Daniel Lemire <daniel@lemire.me>
Date: Mon, 7 Oct 2024 17:23:22 -0400
Subject: [PATCH 2/3] fix

---
 bitset.go | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/bitset.go b/bitset.go
index 2f1f7ef..4d98126 100644
--- a/bitset.go
+++ b/bitset.go
@@ -112,11 +112,11 @@ func From(buf []uint64) *BitSet {
 // As a user of FromWithLength, you are responsible for ensuring
 // that the length is correct: your slice should have length at
 // least (len+63)/64 in 64-bit words.
-func FromWithLength(len uint, set []uint64) *BitSet {
-	if uint(len(set)) < wordsNeeded(len) {
+func FromWithLength(length uint, set []uint64) *BitSet {
+	if len(set) < wordsNeeded(length) {
 		panic("BitSet.FromWithLength: slice is too short")
 	}
-	return &BitSet{len, set}
+	return &BitSet{length, set}
 }
 
 // Bytes returns the bitset as array of 64-bit words, giving direct access to the internal representation.

From 2ba49f65a4028d95f47558f467ae32e814555ad2 Mon Sep 17 00:00:00 2001
From: Daniel Lemire <daniel@lemire.me>
Date: Mon, 7 Oct 2024 17:26:22 -0400
Subject: [PATCH 3/3] fix

---
 bitset.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/bitset.go b/bitset.go
index 4d98126..c860986 100644
--- a/bitset.go
+++ b/bitset.go
@@ -111,7 +111,7 @@ func From(buf []uint64) *BitSet {
 // the From function.
 // As a user of FromWithLength, you are responsible for ensuring
 // that the length is correct: your slice should have length at
-// least (len+63)/64 in 64-bit words.
+// least (length+63)/64 in 64-bit words.
 func FromWithLength(length uint, set []uint64) *BitSet {
 	if len(set) < wordsNeeded(length) {
 		panic("BitSet.FromWithLength: slice is too short")