Quite a few instances of the Cardinal Error of Ctype were turned up

[sgt/puzzles] / untangle.c

diff --git a/untangle.c b/untangle.c
index 9fc786b..5d01e9a 100644 (file)
--- a/untangle.c
+++ b/untangle.c
@@ -284,7 +284,7 @@ static unsigned long squarert(unsigned long n) {
 
     d = n;
     a = 0;
-    b = 1 << 30;                      /* largest available power of 4 */
+    b = 1L << 30;                     /* largest available power of 4 */
     do {
         a >>= 1;
         di = 2*a + b;