From 9e540148489fa7fb4a4dec9ef6869cb1c0eb1445 Mon Sep 17 00:00:00 2001
From: Christoffer Lerno <christoffer@aegik.com>
Date: Mon, 10 Feb 2025 23:55:02 +0100
Subject: [PATCH] Fix issue in GrowableBitSet with sanitizers.

---
 lib/std/collections/bitset.c3 | 11 +++--------
 releasenotes.md               |  1 +
 2 files changed, 4 insertions(+), 8 deletions(-)

diff --git a/lib/std/collections/bitset.c3 b/lib/std/collections/bitset.c3
index c6dfff35c..e280d256d 100644
--- a/lib/std/collections/bitset.c3
+++ b/lib/std/collections/bitset.c3
@@ -117,15 +117,10 @@ fn void GrowableBitSet.set(&self, usz i)
 	usz q = i / BITS;
 	usz r = i % BITS;
 	usz current_len = self.data.len();
-	if (q >= current_len)
+	while (q >= current_len)
 	{
-		usz n = q + 1;
-		self.data.reserve(n);
-		if (n - 1 >= current_len)
-		{
-			self.data.entries[current_len .. (n - 1)] = 0;
-		}
-		self.data.size = n;
+		self.data.push(0);
+		current_len++;
 	}
 	self.data.set(q, self.data[q] | (1 << r));
 }
diff --git a/releasenotes.md b/releasenotes.md
index 373b70cbc..1ff7965de 100644
--- a/releasenotes.md
+++ b/releasenotes.md
@@ -61,6 +61,7 @@
 - Issue when having an empty `Path` or just "."
 - `set_env` would leak memory.
 - Fix issue where aligned bitstructs did not store/load with the given alignment.
+- Fix issue in GrowableBitSet with sanitizers.
 
 ### Stdlib changes
 - Added '%h' and '%H' for printing out binary data in hexadecimal using the formatter.