From a5996c4727705f3dd48d0b6d5cacc90392dd58d4 Mon Sep 17 00:00:00 2001
From: WormHeamer
Date: Fri, 2 Jan 2026 17:30:52 -0500
Subject: fix memcpy of NULL for zero-length strings

---
 str.h | 1 +
 1 file changed, 1 insertion(+)

(limited to 'str.h')

diff --git a/str.h b/str.h
index 0a22242..b5f2889 100644
--- a/str.h
+++ b/str.h
@@ -40,6 +40,7 @@ Str str_replace_end(Str s, Str a, Str b, Arena *m);
 /* conversions */
 
 char *str_to_cstr(Str s, Arena *a) {
+	if (!s.n) return "";
 	char *r = new_arr(a, char, s.n + 1);
 	memcpy(r, s.s, s.n);
 	r[s.n] = 0;
-- 
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