Re: [boost] [conversion] Motivation for two NEW generic conver_to and assign_to functions

Subject: Re: [boost] [conversion] Motivation for two NEW generic conver_to and assign_to functions
From: vicente.botet (vicente.botet_at_[hidden])
Date: 2009-10-26 17:50:21

Hi,
----- Original Message ----- 
From: "Jeffrey Bosboom" <jbosboom_at_[hidden]>
To: <boost_at_[hidden]>
Sent: Monday, October 26, 2009 10:04 PM
Subject: Re: [boost] [conversion] Motivation for two NEW generic conver_to and assign_to functions

> 
> Stewart, Robert wrote:
>> I fail to understand why
>> 
>>    convert_to(b, type_tag<A>())
>> 
>> is acceptable and
>> 
>>    convert_to<A>(b)
>> 
>> is not in any circumstance.
> 
> For what it's worth, I strongly prefer the syntax of the latter -- it 
> works just like the built-in new-style casts and boost::lexical_cast.

Me too. The former is the extended form of the later. They are equivalent. The parameter type_tag<A> is there just to allow ADL.

Both forms are allowed by the current implementation in Boost.Conversion.

Best,
Vicente