Re: [Boost-users] [STL] Is there a std::abs<>() function? (Max)

25 Dec 2008


      I just made up my own naive version. Improvements would be welcome:

     template<typename T>
     inline
     T AbsoluteValue(const T& x)
     {
       if (x < T(0))
       {
         return -x;
       }
       else
       {
         return x;
       }
     }


Max wrote:
...
seconded.
But could you tell me where I can find the temple version of 
AbsoluteValue function you mentioned?
Thanks
B/Rgds
Max
----- Original Message -----
From: Deane Yang 
To: boost-users@lists.boost.org
Subject: Re: [Boost-users] [STL] Is there a std::abs<>() function? (Max)
Date: 2008-12-23 23:28:08
Scott McMurray wrote:
...
On Mon, Dec 22, 2008 at 21:06, Max  wrote:
...
...
What I need is a template version of abs, not the
...
...
int abs(int) function, to make use of it genericly.
...
Do you really need a template of it?  I can't see why using ADL
...
wouldn't be enough (with a using declaration for std::abs, to catch
...
the overloads for scalars from  and ).
I certainly use template versions of Max, Min, and AbsoluteValue,
because I need them for user-defined classes (that represent real
numbers) and not just for built-in types.
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