From 988389a6ea0e644ae3a1b0d0201b9713301ac225 Mon Sep 17 00:00:00 2001
From: Intel A80486DX2-66 <larry.holst@disroot.org>
Date: Sat, 9 Mar 2024 11:46:01 +0300
Subject: [PATCH] extol.c: clear 4 rightmost bits before the loop

---
 c-programming/jokes/extol.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/c-programming/jokes/extol.c b/c-programming/jokes/extol.c
index 34256ab..22aa094 100644
--- a/c-programming/jokes/extol.c
+++ b/c-programming/jokes/extol.c
@@ -34,7 +34,7 @@ extol (FILE *f)
       FILE *fs = fopen ("extol.txt", "a+");
       fseek (fs, 0L, SEEK_END);
       result = extol (fs);
-      for (result <<= 4; (result & 15) != 15; result++)
+      for (result <<= 4, result &= ~15; (result & 15) != 15; result++)
         fputc ('=', fs);
       result >>= 4;
       fprintf (fs, "\n");