Re: [boost] Formal Review Request: Boost.Convert

Subject: Re: [boost] Formal Review Request: Boost.Convert
From: Vladimir.Batov_at_[hidden]
Date: 2009-02-23 14:38:55

Stewart, Robert wrote...

> I assume that's a reference to me.  My suggestion of "conversion" was as 
a namespace name. 
> Were you referring to my suggestion of using "converter" for the 
function object and "convert" 
> for the function template that would deduce template parameters?

Yes, I was referring to that latter suggestion of yours:

>> namespace boost
>> {
>>     ...class convert;

> s/convert/converter/
...
>      template <class TypeOut, class TypeIn>
>      TypeOut const
>      convert(TypeIn _input, TypeOut const & _default)
>      {
>         return converter<TypeIn,TypeOut>(_input, _default);
>      }

I've essentially implemented function wrappers as you suggested. Only I 
called them convert_to() and convert_from() that I am hoping many people 
will be happy with (remembering string_to/from et al) as the names could 
not be any clearer:

int i = convert_to<int>(str);
int i = convert_from(str, -1);
int i = convert_from<string, double>(str, -1);

That allowed me to keep the function object as "convert" and, say, apply 
it to algorithms as 

    std::transform(
        strings.begin(),
        strings.end(),
        std::back_inserter(integers),
        convert<string, int>(string(), -1) >> std::hex);

which is kinda nice as well. Do you agree?

Thanks,
Vladimir.