io.snprintf

examples/puzzles/aoc2024_07.zr

@@ -1,13 +1,7 @@
 func concat[a: i64, b: i64] : i64
-    a_str := str.from_i64(a)
-    b_str := str.from_i64(b)
-    ab_str := str.concat(a_str, b_str)
-    out := str.parse_i64(ab_str)
-    // without freeing the program works but leaks 2GB of memory :p
-    mem.free(a_str)
-    mem.free(b_str)
-    mem.free(ab_str)
-    return out
+    ab_str := _stackalloc(50)
+    io.snprintf(ab_str, 50, "%d%d", a, b)
+    return str.parse_i64(ab_str)
 
 func solve[ops: Array, e: Array] : i64
     e_1 : Array = array.nth(e, 1)

examples/sqlite_todo.zr

@@ -41,10 +41,7 @@ func main[] : i64
             while sqlite3_step(stmt) == 100
                 id := sqlite3_column_int(stmt, 0)
                 task := sqlite3_column_text(stmt, 1)
-                
-                io.print_i64(id)
-                io.print(" - ")
-                io.println(task)
+                io.printf("%d - %s\n", id, task)
 
             io.println("============")
         else if choice == 2