Category talk:Wren-rat: Difference between revisions

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@@ Line 165: / Line 165: @@
     pow(i) {
         if (!((i is Num) && i.isInteger)) Fiber.abort("Argument must be an integer.")
-        if (i == 0) return this
+        if (i == 0) return this.copy()
         var np = _n.pow(i).round
         var dp = _d.pow(i).round
@@ Line 175: / Line 175: @@
     // Other methods.
-    inc { this + Rat.one }            // increment
+    inc { this + Rat.one }              // increment
-    dec { this - Rat.one }            // decrement
+    dec { this - Rat.one }              // decrement
-    abs { (_n >= 0) ? this : -this }  // absolute value
+    abs { (_n >= 0) ? copy() : -this }  // absolute value
-    sign { _n.sign }                  // sign
+    sign { _n.sign }                    // sign
     // The inherited 'clone' method just returns 'this' as Rat objects are immutable.