Re: [boost] [Review:Algorithms] Order of args to clamp

Subject: Re: [boost] [Review:Algorithms] Order of args to clamp
From: Gordon Woodhull (gordon_at_[hidden])
Date: 2011-09-27 10:23:39

On Sep 26, 2011, at 2:17 PM, TONGARI <tongari95_at_[hidden]> wrote:

> 2011/9/27 Peter Dimov <pdimov_at_[hidden]>
> 
>> Dave Abrahams wrote:
>> 
>> IMO it clearly should be:
>>> 
>>> template<typename Iter>
>>> void clamp_range(
>>>    Iter first, Iter last,      typename itertor_traits<Iter>::value_**type
>>> const& high,      typename itertor_traits<Iter>::value_**type const& low)
>>> 
>> 
>> Then clamp should be
>> 
>> template<class T> T clamp( T const & value,
>>  typename identity<T>::type const & low,
>>  typename identity<T>::type const & high );
> 
> 
> I second this. BTW, The return type could be T const&.

Okay, I'll bite. Why identity and not just T? 

(I thought this might be a joke at first.)