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   comp.lang.c++.moderated      Moderated discussion of C++ superhackery      33,346 messages   

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   Message 33,225 of 33,346   
   Francis Glassborow to All   
   Re: max enum value +1   
   04 Oct 13 09:55:03   
   
   From: francis.glassborow@btinternet.com   
      
   On 04/10/2013 07:59, fmatthew5876 wrote:   
   ..   
   >   
   > It would be great if there was just some way to get the max count +1 of   
   > any enum.   
   > Something like:   
   >   
   > enum Color {   
   > kRed,   
   > kBlue,   
   > kGreen   
   > };   
   > constexpr int kNumColors = std:enum_bound(Color);   
   >   
   >   
      
   What about:   
      
   enum Color { // How I hate spellings that are specific to   
                // to one side of the Atlantic   
      red, blue, green, count };   
   constexpr unsigned colors{(unsigned) count};   
      
   Though I would prefer to use a scoped enum for this, saves risk of   
   name-clashes. Yes, count is not a color but presumably you are going to   
   check count in the context.   
      
   Francis   
      
      
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