Re: [boost] [convert] Now with Boost.Parameter interface.

Subject: Re: [boost] [convert] Now with Boost.Parameter interface.
From: Stewart, Robert (Robert.Stewart_at_[hidden])
Date: 2009-07-02 09:05:22

Gottlob Frege wrote:

[please don't top post]

> And in addition to the unexpected effects, it just doesn't
> read or look right.
>
>    from(str, 0)(more stuff);
>
> really makes me think 'more stuff' happens AFTER the
> conversion. This is one of the examples of why C programmers
> and many other language-ites just shake their heads at us. We
> can't seem to stick to writing code that even follows the rules
> of the language. (obviously the code, using a proxy, does
> follow the rules, but it doesn't look like it does).

That's probably why I've thought the named function approach clearer:

   from(str, 0).more().stuff();

It deviates less from the usual, though I do acknowledge your complaint about the sequence.  Here's another way to make it more explicit:

   from(str, 0).with(more stuff);

> If you really want the multiple function call syntax, could we
> at least somehow put it first? ie (just one possible way), and
> note that 'convert' has become 'converter':
>
>    converter<int>(locale_ = loc)(throw_ = true).from(str, 0);

Why not with the syntax Dave has been suggesting:

   converter<int>(locale_ = loc, throw_ = true).from(str, 0);

_____
Rob Stewart                           robert.stewart_at_[hidden]
Software Engineer, Core Software      using std::disclaimer;
Susquehanna International Group, LLP  http://www.sig.com

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