Index: aoc2024.c
==================================================================
--- aoc2024.c
+++ aoc2024.c
@@ -48,11 +48,11 @@
     if (data[rcmap(size, row-1, col+1)] == 'S') tmp |= 8;
     if (data[rcmap(size, row+1, col+1)] == 'M') tmp |= 1;
     if (data[rcmap(size, row+1, col+1)] == 'S') tmp |= 2;
     if (data[rcmap(size, row+1, col-1)] == 'M') tmp |= 4;
     if (data[rcmap(size, row+1, col-1)] == 'S') tmp |= 8;
-    return tmp == 15;
+    return (tmp == 15);
 }
 
 void aoc202404(char *data, size_t len) {
     (void)len; // unused argument
     // assume data is well-formatted and has the same number of rows and columns