这里没有考虑未超出部分打折情况

如题
bylynnan · Aug 4, 2016 · ed1e268 · ed1e268
1 parent 53e1dfe
commit ed1e268
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/ch15/ex15.7/limit_quote.h b/ch15/ex15.7/limit_quote.h
@@ -11,7 +11,7 @@ class Limit_quote : public Quote
         Quote(b,p), max_qty(max), discount(disc)    {   }
 
     double net_price(std::size_t n) const override
-    { return n * price * (n < max_qty ? 1 - discount : 1 ); }
+    { return n * price - discount * price * ( max_qty > n ? n : max_qty ); }
 
 private:
     std::size_t max_qty     = 0;