From be9104783e75548195ec9f9661d4a3365d300f85 Mon Sep 17 00:00:00 2001
From: default
Date: Tue, 4 Feb 2025 16:56:12 +0100
Subject: Don't append non-strings in xs_readline().

---
 xs_io.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/xs_io.h b/xs_io.h
index 110b0eb..8fc5d6f 100644
--- a/xs_io.h
+++ b/xs_io.h
@@ -27,7 +27,8 @@ xs_str *xs_readline(FILE *f)
         while ((c = fgetc(f)) != EOF) {
             unsigned char rc = c;
 
-            s = xs_append_m(s, (char *)&rc, 1);
+            if (xs_is_string((char *)&rc))
+                s = xs_append_m(s, (char *)&rc, 1);
 
             if (c == '\n')
                 break;
-- 
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