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

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   Message 32,034 of 33,346   
   =?ISO-8859-1?Q?Daniel_Kr=FCgler?= to All   
   Re: automatic return-type deduction for    
   20 Mar 12 22:37:20   
   
   7cf909a7   
   From: daniel.kruegler@googlemail.com   
      
   Am 20.03.2012 09:29, schrieb Jens Auer:   
   > I would even go further and let the return type deduced when the   
   > lambda contains multiple returns with the same type, e.g. an if   
   > statement:   
   > auto max = [](int x, int y)   
   > {   
   >    if ( x>  y )   
   >    {   
   >       return x;   
   >    }   
   >    else   
   >    {   
   >      return y;   
   >    }   
   > }   
   >   
   > Why not have the return type automatically deduced from all return   
   > statements as long as there is no ambiguity? The compiler computes the   
   > type of all return statements anyway when we specify a return type to   
   > check the type.   
      
   Yes, this exactly the solution that is suggested by:   
      
   http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_active.html#975   
      
   HTH & Greetings from Bremen,   
      
   Daniel Krügler   
      
      
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