From: musiphil@bawi.org   
      
   On 2012-04-23 21:22, Miles Bader wrote:   
   > brangdon@cix.compulink.co.uk (Dave Harris) writes:   
   >> o Unable to add more code between initialisations (so it doesn't   
   >> scale).   
   >   
   > This is absolutely my main complaint about initializer lists -- I find   
   > it a very common case that I want to calculate an intermediate value   
   > based on the constructor arguments, and then use that value to   
   > initialize several data members.  The initializer-list form makes this   
   > quite annoying.   
      
   For example,   
      
   A::A(double x, double y)   
   {   
        double r = hypot(x, y);   
        this->x = x / r;   
        this->y = y / r;   
   }   
      
   In this example, 'hypot(x, y)' represents an expensive function call   
   whose return value is to be used in initializing subsequent members.   
      
   Is there a good way to do the same with an initialization list?   
      
   --   
   Seungbeom Kim   
      
      
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