auto return for some recursive functions in C++11

[ketmar via Digitalmars-d]

On Thu, 15 Jan 2015 00:05:30 +0000
Xinok via Digitalmars-d <digitalmars-d at puremagic.com> wrote:

> Well, the error the compiler prints is:
> 
> Error: forward reference to inferred return type of function call 
> 'correct'
> 
> I played with it a bit and it seems to deduce a common type from 
> all the return statements, which would be more in the style of D 
> anyways (take type deduction for arrays). For example, the 
> following code prints "float" rather than "int":
> 
>      import std.stdio;
> 
>      auto one(int i)
>      {
>          if(i > 0)
>              return cast(int)i;
>          else
>              return cast(float)i;
>      }
> 
>      void main()
>      {
>          writeln(typeid(typeof(one(10))));
>      }
i remember that there was some discussion about this, but it's all i
can remember about it. ;-)

there were some inconsistencies with deducing return type, AFAIR, but i
don't remember if it leads to some fixes or not. if ony i wasn't so
lazy and take some notes...
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 181 bytes
Desc: not available
URL: <http://lists.puremagic.com/pipermail/digitalmars-d/attachments/20150115/6a58b861/attachment.sig>